HomeMy WebLinkAboutTract Map 8856 Drainage
I
I'
I
I
I
I:
".
I
I
L.,;
I
: L:..:.
I:
~
I'
I
I
I
1
1
I
I
WOLF V ALLEY DRAINAGE BASIN
REGIONAL
-
DRAINAGE ANAL YSIS REPORT
MAY, 111'
,.---.-- - - ..---.-- '""'....
R ~ r: ~~ ; V != 0 ;
GI7~c~ ' . i
f/Ah;~!-:;\j',j 0: ' _. I
I 1.__'It0;S:-~.\!~~C~..~2~.;.:.... I
,
PREPARED BY:
LOHR + ASSOCIATES INC.
.,." RIDGE PARK DRIVE
TEMECULA, CA 12110
(.0.) 8"-872'
f i~ Lohr+Associates Inc .../
\
I
I
I
I
I
I
I
I
I
:1
WOLIF 'V,ALLEY DRAINAGE BASIN
REGIONAL
DRAINAGE ANAL YSIS REPORT
MA Y, 111'
I I
I
I
I
I
I
I
U
I
PREPARED BY:
LOHR + ASSOCIATES INC.
."" RIDGE PARK DRIVE
TEMECULA, CA .2110
(.0.) 871-1728
2-
I
I
I
I
I
I
I
I
I
,I
I
I
I
I
I
I
I
I
I
TABLE OF CONTENTS
I. INTRODUCTION 1
2. STUDY AREA DESCRIPTION 1
3. EXHIBIT A 2
4. EXHIBIT B 4
5. METHODOLOGY 5
6. EXISTING/FUTURE STORM DRAIN FACILITIES 6
7. EXHIBIT C 8
8. EXHIBIT D 9
9. CONCLUSIONS AND RECOMMENDATIONS 10
10. APPENDICES
A. HYDROLOGY CALCULATIONS
B. HYDRAULIC CALCULATIONS
C. HYDROLOGY MAP (POCKET INSERT)
~
I
I
I
,
I
I
I
I
I
I
I
I
I
I
I
,
I
I
,
I
A.
INTRODUCTION
The purpose of this report is to analyze the hydrology for the Wolf
Valley' Drainage Basin which is tributary to Temecula Creek by way
of Pala Road.
This drainage basin contains approximately 1600 acres and is bounded
by the Pechanga Creek on the southwest; the Redhawk Specific Plan
development to the northeast; Pala Road and existing development to
the west; and Temecula Creek on the north (see Exhibit A).
The basin is located partially within the City of Temecula and partially
within the unincorporated area of Riverside County. Existing land uses
include residential development and natural open space. The City of
Temecula General Plan and Riverside County Southwest Area Plan
designate a large portion of the undeveloped area as future residential
with supporting commercial, parks and open space. The most
southeasterly area of the basin is within the Pechanga Reservation
and is. designated as open space.
We have reviewed the following hydrology reports as part of our analysis
of the Wolf Valley Basin.
l. Tract 21067 Hydrology Report prepared by McCutchan Company
dated October 23, 1991.
2. Drainage Plan Alternative for Wolf Valley, Murdy Ranch prepared
by Robert Bein, William Frost & Associates dated July, 1991.
3. Pepper Corn Drive/Deer Hollow Way Hydrology Report prepared
by Ranpac Engineering Corporation (not dated).
4. Hydrology Report for Redhawk Development tributary to Pala
Road prepared by Ranpac Engineering Corporation (not dated).
5. Storm drain improvement plans for Tract Nos. 13060, 19872 and
19939 as approved by Riverside County and on file with the City
of Temecula Engineering Department.
All flows determined in the reports listed above as well as those
calculated in this report are based upon a 100 year storm frequency
in accordance with the Riverside County Flood Control and Water
Conservation District Design Manual.
a
STUDY AREA DESCRIPTION
The following sub-areas within the 1600 acre Wolf Valley Drainage
Basin contribute flows to the Pala Road Channel and ultimately to
"Femecula Creek. The limits of these sub-areas are based in part upon
-1-
'\
loe,.i ii
, ..1
I
..
I
1.\, .'-
\ ,
" \
\.1
\
I
,
" (
l"'::
-,
i;
~
\
:1\
. \
'6-\
'I
,
i '.
I
".'
.-- ~.
.-
",.:,
\
,\
I
.!
-, '-~
...- C".',=>'
I ' .; 1:',_.;' . i ~
" - I ,.s' '!~/.."~_/'~'.....'-'-.'.-,~~'
,.~") '.')\:''S,:'. -, . /" I
./ I'..... f';') /;0-)- -j- S~ ')
I -. ~-':1:/\~__,,/:o,.~,2?' i, ',---.. '-,)
'I:' '.; i. ",. _--' '
'-.J '-.) :'-~/f.':'~_::.-~ ,::\ --'I
'o.::s' - )'/ .-
.S.... ~\~.'. _:,
~ (" '" l'
",~, ,~ ~
,:; ~ ~,,-z ~.
.' ~ . '.,
J~, . "i~
, C <-. .
,,"(Y,-,~~,::
, )::...<,.---;;"-'.'
;1,
n(
(i
"
'1
:...
,
-'\
.:--"
. 0 "
(~'
J -,
L:. ,
-.i
"
,
L
- !:..~
-/ <i~i'-;-
'.';: ,\[c~{!
: _ (DoCJl!
. /1..;s:;-v
; .l/ '.----1 .,'
"'Ii I.. '.1
'I
L . -.___'~
/-71,
,y I~
<, ~..1
)C.~,{>. -.-- J?:' .
-2-
, .
;<'v....
/8/ /..
.to
(;,.
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
the existing reports prepared for each area as well as an overall review
of topographic maps for the entire drainage basin. (See Exhibit B)
Area 1 Pepper Corn Drive/Deer Hollow Way - This area contains
590 acres and is located south of Deer Hollow Way and east
of Pala Road. Approximately 300 acres are included within
the Redhawk development and the remaining acreage is
undeveloped area within the Pechanga Reservation.
When developed, this area will concentrate 1346 cfs at the
intersection of Deer Hollow Way and Pala Road through a
storm drain system constructed as part of the development.
An additional 100 cfs discharges onto the Murdy Ranch Property
at the future location of Vicksburg A venue.
Area 2 Existing Redhawk Development - This area contains 200 acres
and is located north of Area 1 and northeast of the Murdy
Ranch property.
Storm runoff in this area is collected in the streets and an
underground storm drain network which connects to an existing
72" RCP located in Wolf Valley Road. This pipe discharges
293 cfs onto the Murdy Ranch property into an existing earthen
V-ditch which directs the flow to Pala Road.
Area 3 Pechanga Creek/Pal a Road Overflow - This flow has been
determined to be 180 cfs based upon the fEMA report dated
June 23, 1986. This flow is from outside the Wolf Valley
Drainage Basin and occurs at the Pechanga Creek crossing
of Pala Road due to an inadequately sized dip crossing coupled
with the inadequate capacity of the channel banks upstream
of Pala Road.
Area 4 Pechanga Reservation - This undeveloped 96 acre area located
west of Pala Road and south of Tract 19939 discharges 192
cfs into the Pala Road Channel at Wolf Valley Road. This
flow has been calculated in this report using a runoff
coefficient for residential development.
Area 5 Tract Nos. 19872 and 19939 - These tracts were constructed
in the late 1980s and are located west of Pala Road between
Loma Linda Road and the Pechanga Reservation. They
discharge 238 cfs into the grouted rip-rap portion of the
Pala Road Channel just north of Loma Linda Road through
48" and 54" R.C.P. 'so
Area 6 Murdy Ranch - This 557 acre parcel is located between Pala
Road to the west and the Redhawk development to the east.
Loma Linda Road is its northerly boundary and Deer Hollow
Way (Fairview Road) is its southerly boundary.
-3-
~
,-
-
-
-
-
.......
'."...\
.,
~ :..>:";(. .\
,
,''\,'
/".. ~I
~ .
.'f.
'to';'
"
..
;
!
!
:;
,"
..
,
.,
".,'
"'.
...'
.,.
,.
.
j<
,~ ."
"
r .~..
~;,~"<
'!!....:.
i"
U.
U'
t,,3"
<!i~~'
-.\'
r;.;i
i'~:l
}>
>':'.
,.Yi,
n;~~'
~ ";'~
i.;. i: "'~
t. ,".
_ j'
,.. ;. l\
:~;. .,! \:
~~.~!
.J:.....,.
.1\,0'
'.I't
, ",
"'-:'10
; "I,.
:. .J"
\ ~ :' ~
~~~~
...
~~t .,
, ."
n 1,~
, "
.1.' '\
"
" ' .,', ',' " \
".'t .,;
. '.>.,~'.', '. ,Il,,', ,': ":.',?~:. .
, , . "", ,...,(';:- '"
;' .J"::-.",,.,~~:,<"i.:t.,:.;:,~::;:'::::'<' '.'
l. . ,,-,,,,, 1.\..... --. ~".... -tOol' -.Jl.....
6,~.t:; I 'i~.', .\".:,;:~';\\-Yi},:,:A~~:.~~~t~;~J\/:
" . .., ',.. _ '\, ., ...,;". "","-",' ."Ii'" n.' .
^ ':~,~,~".!..,;: ',:~;,~'-.r;;:~,~\ y \.':'3'~",,';:::;"i:";':'G
;.. ;..., _.' , """"" ,:V>,'h.,.......,\,,'..,'..
;w ,". I C:t. ,. " ".,:\\::;,\';..~{~,\>;:t~!i:;;'.:': !"{il.:,i;
w ~il2~ \ ,,'. ,'. ,,', . \ ,", ~"'-,'- ."..... . /I....J..,., .
!i8 _ ~_" _,' ,<",\ ...."..,..,.....'. ,,"": h'."
l of ~ .... ,., .,...." ,.....:' "'i."
i1:r'! 'ii', l'l' > ,,,. ,,110. .>W.',..,~..,',.:::~..~{),;~:.\'..:,.~)~..i~,'~.~.".:;'.,~..:,:.,.:f:;..,{,..!~,1i,~.,;i,
I.:.'>,r.....' ,'." ~ lil ,I.~ ,.;' "h",<:' ;'" .....'S'lil .' . -.
. _ . .,' ..... ".... .',. T <,'
r..:" ..,...,...,.I.i" ",_'" " .", "''''''~1J''-('i I...:. ~... ~........~,-'.,:~,,:,~,\~,;.:-',.,~,'.,>,., ._~(~:;:..:.'..:-:.:..E~-:.\;.,\,.i~,..':,'-.:.,.~,~,,:~".....~,.2.~~;,~."..~.,':
. ! .,,' ,.oF' '.' · ~,. . .~:.,..//;.'j.;.;,:." . . ....
. I" ~ ~ ," ", ;l'~,,;\ ,.:,' -;::'1': ." .'~. . ,.',' ...:,...,.~~,.,;Jt~.',~;..:....f~i,.~.~?:,
~~i\.. . .
.'.' '... r 'r~~H:" )~~fIl. . .~", ,',' l..J,:,:j/ ~-.~<~~:..~~~~.: -~~:"""" ...'/'.,:,.,. :~~:~~..:~l..~::~,.....t..~..;,~:ftl
.. "I.~j':' ..",' ", ...... F" .,. . ',. , ". . .... ~.. """..
~~4i '> t' . . ,,' Iii; ",-,: .:' ;.;' , ~,.. .,~..::i.~~,:t ~j.'I::'::,;:,;,~,~;j:.\~,.',;'.~:.,:~,.~,:,~;..~;,~.,!~<".";.~ ,;\,.~~,,1~,,;\,1
oi:: :':"" ."1 ;,,~' ,:.... . . . " ;-~,~,,' :.' ,,:,','...;,..,'.'.,'~ .'".,.'.. ":'~:~ ,...','~~',...~.".~. ".',.'j"', ";l,'~".',.:.'..,,~, ...,.:~: ,/~ . -- '. .
."'.~ ;,1"1", ~. ,," '. '. . " ~ ".:~;'-G. ;(.,""~:"'1';~~:~':'5"_' 'A\,.\{-~.ll
~~ '"' . . .,<'c.2 ,",,},:,,!: ~",,< ;'" .. ,?!.~
,/,r,z: ,'", ",....-.' '.,', "0 ..... .: . :~:: ~" ,~,.",'.,<, " '~.I.
"w. .. . ,.' '.'. ". ':,; I, I.' .J" J ~..'.'
V~" .... . ". J . .,.., ....'
~"",.,...)"", ""'j'I::(t,"';~:"'~'-' .!~...._ ",-'>., ,; /" i.-. . ,..' ,
. ilt" , '.''11'' y--..' -'..10b .. ... ," ,I; . .,"
;~; .:~~:i~. .~ ..~~\~.r:~,.. '!i:;~',f!1i
tt :',:, . .~.....'!1i"~ ~""'"",;;;;;, ','. \ ':":i~'.~:~,~..,.":.,.."'",':':,~'.,,,.~',;:,\: .~~;::;:::;
.... . w ' .. , i'"
d I ".~~! j ..~)i ,... " ,. ... ,.. ,~'...' .. ,
I .. . " .'.. '.' " "'. ;.;,1;- ' . ". ....''l
~/(' _:;:~ ~:. ,_:;:' " '",' , ,." :~ijij;'," \\
"i.........
. '\
}
"" ,..,' '.": :
C" ,.'." ..
. ..' .. " . ,-'" ,"" ." '..1
'., . ,,' ../. "i'{;~t ?\'j~f,i \ii~i,~!
~. .. .- .. -, ,.,... ."",,,,~"'"'.''' . ~""
I"~ '..' " ,." ~ . . ... .. ." ""." ,. ,. ., .."~'.' ....,;,.., f.,..,,<':c,; <."f
. ........', ' ~ . 0 .... ' ... ~. ., ...., . - ., ,.., ,... ,'" .=,.,...... .,<., .
J-. .. .. . .....,..... ".." .' ....... ..... .
~",,,. .. ..' .- . . .. ". . ..,.' , " ..... "...."., ...." ,....
,.<' . . ..... .." .' .... .. . . ,..... ....;., ." ..., ,. ......, ". .., ..
, . .," . --;;~O'>; 'll' ".~ '. ; ''.. _ .,.., ~ '< :"." ... '... '. . ,,,,,,,,<:;.,,.. ."S'~ ~
~'!\"';'~ '. .Y : ':".ffi'.\ _~'-:j_' ',,,.' ' " .,.,' :... ,,'. ;,'~'. ,', ::'.;";";> ," ':,..,,:,.,.~~~~~.....~'.:.:...~;...;-i:.:;:"4
,. ..... ./< r-,.". ,_, . . ., ."." .....',.. ....."", ,..,~..^ ,., "'\ ......"i~.l;'~
. ,'" " " ",' . ~', ' __..... ' '.. ",. , _.. " .."..,,' h_ ;,' ,,,""~' ."1 ,.~-'
""./ ~.".~ ". .'. .... ." ",.-e.,'., .". . .;,,,.,,,.;,<,>.~.\ .....l.T'''(''..:, J.~~,\,;;~~:-~;fl~~\-\'cl
~-.. 0;' .7' 0 .. ,,' , ...... ..... . ~,.......,.. ..... ....'". .~.
,. < '.. .... . ......,. , .' '<' .;" ,; ...........:'. ..,,, . ,,~'~'^.I
,,;,c _, ~ ~:...." ... ':". ..' ;., ... '" ,.' L";,;' ',;. c, (.., """1,." .c.,~
t"ii i~"\~)> )>,.,A,J < ~ "".... :.'~~ \. ..;.. . '. ....... -..,. ~.d,~ '.'.. ",~":"";,,,,.~,_,,",,'J
.,"" )> ':..' " ,,: """".~"FS\'~""""""":''''''''~-''''''>'''')'';''':-','....
~~;.,;(. "i1 . ',.... \ '\ ~~' . " !:Jt....~:.t. ..~\":'.....',. "--t;...::,"';.,.")"'...{7~.,""~ .:....::r /\i.':~~::"'-;';;' ....11;~ll
.,. _ ...:tI _ F ~ ... .., .. . '.' . ",",. .... ..,.",," . ~~..,.. - ~
",1 "...;, Z r- ~ , '. ,'\,. :' . ,. "., -" ,"'" .,.;.. "'....,.;'l;C"....,;,.""<,,,,'ll"',;>;...'
'.,.... _\ ;...AJ'-~~ r'" ...,..,.',.' .'. . '".' , .,' ... "",,,.,,.,,,....,....,,,.,,...", . .",,' ,
"",". .' _, 'T'..... 4 ,.' ". ..., ,'". ' " 'I,', ", "'-, ..1:.,-:1~f~I~')..":o..":..\.~7>-:-:..~t.J.......:,~':-"t.~.-\~ ;~~"':;~. ""'l
~. ,'<r-' ..... ~' '\ " " "" " ....'I .....,..."."1..; '," "',.",.. '<\' '~"'A
,;,..... ..'" .... ^ m . ,..', ., .. " . ...:. ...,7:,":i .."'... , ."".","""'-"'""'~~~
~. :i'l'\~l- .,y". " 1r.I1 \ -< ' . . ,.,.. ,.,'. ~ . . .,.... ",. ...,-"" .^ .~;;:....., ,,"'........ ...,., ",,,,.'."'" "'.
f'..,." ..... , . " . .'. '... ....... ... '." .,~". ..,>, . ..,...>>"'..............,-~ ~::\--'!S,lr5:.)..
,.1 I A..~-.Irr. m ' ., ,. '. ..., " ., . .,,' .... ,~.. ... .,...'",....,'''~.. "'''''
""'~" ".." , ' ... .', ,..'" ,.....' . .... '" , ,,,....,"'.. ~"" ,." ,,,"",Et.\~~:--..,;::~~~:~~:....;. ". ~~~~~\l
f~~:-;,,;W~l.O;.;,':' ;/...... ~,~ . \ I':' ~".;A.2! ,~~~"~,:,:::~~>"'~~'\).~ "~''l.,~;;,.,.~.:'"~'"~'~f.~,,,,,~~~.,,~ ~~}'~;~
~'. 1":' ~',"';".' ,..... ,~; " , ' 'w. ~ ~~..,.. '. .'.. '".. ,. ..".........' .., ".,." ,......"...,. ~%_"''''..'''' .,,"".
...." ,,,:t......, "....'Y' ,_, ,," . 'h;~ ""~ ,'" ~. '",'" '. '; .",.:...,';^".,'~.,,~>"... .""....~,,'~...'r~);:..'~\>~h:~~t,.. '4 .' ,~1
"....\:..;;.:~Q),}:.~~.:;, :-O(i"~ ",,';!"':/ ~"" ,':':" '. -;_e.~', ;:,,<<:.' ',' ,:,,:':)~'1:.~-f)!. f:'{~~~"'''). ~!i*,~ '~*,:\.".~li;~ ~ 'S"~'
,. ..", <,.;,~Q" .,"" .,. ~'.' ..' ',. ....... ,".'.. .. ...."C" ,..,..,,,"." ,,, ",~",,:-,,~~~~,~':'(':.'f' <.. . ~~
~1!ii,'''-lJ'~,oi':')>~;;''> ,','!i~\'~'" -/. ,......"'.~ 0" .....":;, '#il{WdI>'>i'''''i!-~, ,,!.i1J-~W ,.:' 'iI.
f",,~"~'};"J .";2'.'......'" ,...,>~,:r'r'n~'" ,.'. ,.,....~l' '..' -"";,.,., "~.,)._..;,''''. ;,.....r",W":'~""'''''-< :',., ,..;:;,..,,~,,~,,;..:,~,
d..':....~:i!.1~...~~J.. ,'.."I..~.~~ ,..' ,..~.."-l,~.:. (" ". ,>..... "~': ' ,":;'fl,~,,,,,,,,:,,,,,,<"":~""''''0\~~''''''' ">.I:"" 'Ii\,~ i:R\';
.'v"....~.. . ',' ,,' <<" . A. ". ,.. .'.' ..'" ... <~.. ..<., .....,,'h'.~..'_..,.......... .... .. . ."," ..<
~.~.','i'._O...' '1;"" ,a,'.....'(',.. ,.1 ,'..'.3..',' "'.> ,:. ",..; ""-"".,,,,,,,'1~,,"'" '\'\;":O\'l:.'":1<lI~':;''i~S<'l.:~''':'~' ~I;, ,.........:...::r.;.;,,~_~l'
.~.."~. .,-,:;"",~..,,~,,!,'.."....,.,,\...,.I'."i'" ,'. '..,,' ....'~<:".,V...:<"'~<...:,~.. ~ 'h~",,"l'i.r,.,~'\~" -"",,,,,,(\"';;<':>.':"",,(~'~""'" ,::'
,,, ,~.. K". -- .".. .." .....,., ,.. ...... -.. ..,'. ,," .." ,.""~' .. ,
': ..,\"-:~::~~"f,:;>"di''','i''>'':''!i'I!,~ ....' ", \.:,,,,":,-,,,,, ';..".ti~., :\1i:U,.,,,,,,,"<)i\i '.;"".'''Q",'$~~
....~ \: .~-""rl" '!.,;~~...:n ..., ,...<<,,-_.. ... .," ' .' ,..,'" ,.".". .< ~ "." ..""*,,,~. ......... .
,;,',:,':,':."l:<~'S },;;~. ,''''0: [;!,,\ ,:'i! :,,", '~,",' ^c>.. . .... .:::" "...... ".' .. ..'. ..",." .,,",' ,,' ,.,." .,,,,,,' "" "....... ""1";" "'.. .
".t:.."""'"I~~-'''''''\'' ,.,'" ',,"" '.' '" " .,..;"..,~.".' .,.., "[ H...,H~'.."' ..,..,. ," ....<"",,' "''''1\'
~""'':;'I ~j~_. ~.., '....., ..,"','.... .... .. .. " .,.~.. '.' -".) .'" ,... ",' _'"'~~<.,,'''''-..,.c''' ". 1
f~\'-''':,)~ . f'~"'" ,,~\.,...,,;,c""r,"'~~"" <:,...' ..,;,' :"';:~' ~.,.:,' ',~~...;,.~1~..i:r.\...-;.r....."~... 1J'~""" ,,:$..~,,;~
.",~:;<;.,' /L "':)\ ;;~,: ;;;A:~:,:;'B\'&.\.' . ., ."," ," " ,. ,::. ,..u.,-,.~.".". ,,,,. ,."."-",,...;1"".i"?"'~'
... <' .. .." .,<..' " ., . ... . .. _,. ..' . roO , .............. ..,d "..." ... ......
'.",. : ,^,:'i,";;S,!,"'i;!:;~'iir}i":"" ,..i..;,~" ..,,;:.:"~ 'i' :....i:~'t.), i;;,$;:l ;~:;"\..';t,,,;:';:;\;U<i;<!i
. io ,~... ..i .....~ '1"\. .'":;~i.-i.'~ . ..';,... .'... ". if' . "~,,.' ' . ,'" . ~' '.;" ~,-.:' ......-.<1,-'
. . ....vW... .. , .... '.." 'CO' ,.. : " .~.. .,;..".. ,. ". ..... ",'.;." ,=""~....~,."",.,,..,,,
.' . . . .' .. ,. ~'. . .. ..,.... .... ,.w.,...... ....... ~".." ,,,
, ".."_~\' " '.";, ~"'.;...' ...{','.'.'.~"'.., ,:....4'7.i:.~.,~"~!t.~.~...~...,;...r..~>'~"'I';
_, _"'~ ," \ . ..' " ' _ ,.."I' ,T~ . " - . .~..' ~"'~,~'~....... ...;...!". .~'\......'
__ "..,.,..' .... '.' "",...,,," ,,,,..,,...,,,.,,.,11'"
" . .. ,..;'~:"l'~~''';~ ';~\, '.~,..;.;:.:.~'j\,;-"s... >, ',:',,"''"'lj'':''''':";'l
'" ~\"_.,.,..,.' ~-;':"'~~':.\~"~:;~';::..\~~~~.:~~~{f.;~~':
..
"
i-"
:i:~
...
,I"
.' '...
'"!,
~H;;
"
;~:;:
'.
;"
.':';."
'11{~.
I' "
J "I
.x:.:Y.-"
r""." "'!
......... "",
I. "',',:
Io.~..:., .. ..j
. ,"
*.-
": "
--- ~""-\...~.~:'"
-.'.i: . ......I>>
"\,~,
;',;~
..,~ .
I'..
~a:..
. w~3
'.
mi
xi
:J:'
m;
:j i -.I
ml
-
...
I
I
1
I
I
I
I
I
I
"
I
I
I
I
I
I
I
I
I
I
I
I
I
This report has calculated the 100 year storm flows for this
area based on future proposed development. Runoff coefficients
used in these calculations are based upon land uses shown
on the City of Temecula General Plan.
This project contributes a cumulative flow of 1000 cfs to
the existing earthen section of the Pala Road Channel at
Loma Linda Road.
Area 7 Tract No. 13060 - This tract is located on the west side
of Pala Road and north of Tract No. 19872. It discharges
92 cfs from a 54" R.C.P. into the concrete lined portion
of the Pala Road Channel at a point approximately 1500 feet
north of Loma Linda Road. The tract and storm drain
improvements were constructed in the mid 1980s.
Area 8 Tract No. 21067 - This tract is located at the northerly end
of the Wolf Valley Drainage Basin adjacent to Temecula Creek
and Pala Road. The concrete lined portion of the Pala Road
Channel is along its westerly boundary. The project is currently
under construction. When constructed, it will discharge
approximately 40 cfs into the paved Pala Road Channel.
C. METHODOLOGY
This report is based upon an analysis of the existing reports for the
Wolf Valley Drainage Basin, industry design standards and the following
factors and assumptions.
Hydrology calculations are based upon the Riverside County Flood Control
and Water Conservation District Hydrology Manual.
Soil Groups Band C were used based upon the Pechanga Soils Group
Map. Runoff coefficients for the Murdy Ranch property are based
upon the proposed land uses as shown on the City of Temecula General
Plan.
Standard intensity/duration curve data was used for the Murrieta,
Temecula and Rancho California areas. Riverside County Flood Control
District topographic mapping was also used.
Storm flows for Area I concentrate along Deer Hollow Way (Fairview
Road) and are based upon the Ranpac Engineering Corporation's Hydrology
Report. We have reviewed this report and have confirmed that their
calculations are accurate.
Storm flows for Area 2, which concentrate at Wolf Valley Road, are
taken from the Ranpac Engineering Corporation's Hydrology Report
as approved by Riverside County. We have reviewed this report and
have confirmed that their calculations are accurate.
-5-
~
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
,
I
The Pechanga Creek overflow described as Area 3 in this report is
based upon the FEMA report dated June 23, 1986.
Flows for Areas 5 and 7 are taken from the Riverside County approved
and signed improvement plans for the underlying tracts. (Tract Nos.
13060, 19872 and 19939)
Flows for Areas 4, 6 and 9 have been calculated by this report and
are based upon the City of Temecula General Plan Land Use Designation.
It should be noted that the flows developed in the Robert Bein William
Frost & Associates' Report at Pala Road and Deer Hollow Way (Fairview
Road) are 426 cfs less than those developed by the Ranpac Engineering
Corporation's Report. Based upon our review of both reports, we have
accepted the flows developed by the Ranpac report as being an accurate
representation of the ultimate flows for Area I.
According to the McCutchan Company Hydrology Report for Tract 21067,
runoff coefficients for the upstream basin were based upon the Southwest
Area Plan (S.W.A.P.) which designates the Murdy Ranch property at
3-5 D.U./Ac. and the Redhawk Specific Plan land uses. The Pechanga
Indian Reservation' was considered as undeveloped.
The McCutchan report calculates the 100 year storm flow at Pala Road
and Loma Linda Road as 1893 cfs. This calculation is not accurate
based upon the S. W.A.P. and Redhawk land use assumptions used in
their report.
D. EXISTING/FUTURE STORM DRAIN FACILITIES
The 1600 acre Wol f Valley Drainage Basin has historically flowed in
a northwesterly direction. These flows are currently picked up in
an existing channel which parallels Pala Road along its easterly right
of way. This channel does not have sufficient capacity to carry major
storm flows which results in periodic flooding.
Existing Facilities
Zone 1 - The southerly reach of the Pala Road Channel between Deer
Hollow Way (Fairway Road) and Loma Linda Road consists of an earthen
channel of varying cross sections. This channel can only contain a
small portion of the 100 year flow as developed in this report. There
are no channel improvements south of Deer Hollow Way to pick up
the projected overflows from Pechanga Creek resulting in surface flows
down Pala Road. A double 5' by 14' R.C.B. is located at Wolf Valley
Road in the middle of the earthen channel section. This facility was
designed and constructed by Assessment District 159 as part of the
Wolf Valley Road improvements. The structure has sufficient capacity
to pass the 100 year flow of 2386 cfs as determined in this report.
Zone 2 - This portion of the Pal a Road Channel includes the following
two sections.
-6-
~
I
I:
I:
I
I
I;
I
I
I
I
I
I
I
I
I
I
I
,
I
The eXIsting bridge crossing of the Pala Road channel at Loma Linda
Road is a grouted rip-rap trapezoidal section with an estimated capacity
of 500 cfs. This crossing was constructed as an interim improvement
under the conditions of approval of the Redhawk Specific Plan. The
100 year flow at this point has been calculated to be 2888 cfs. Flows
in excess of the 500 cfs currently spill over and sheet flow to Temecula
Creek along the Pala Road and Jedediah Smith Road alignment.
Immediately north of Loma Linda Road exists a 600 foot section of
grouted rip-rap channel. Its estimated capacity is 660 cfs compared
with the 100 year calcuiated flow of 3129 cfs.
Zone 3 - This section consists of a concrete lined channel located
north of the grouted rip-rap channel section. This channel follows
the Pala Road/jedediah Smith Road alignments and discharges into
Temecula Creek. The channel cross-section has a base width of 6
feet with 1~: 1 side slopes and a depth of 7 feet. Based upon a slope
of 0.35 percent, we have determined this channel has a capacity of
1160 cfs with one foot of freeboard. The 100 year flow in this section
of channel is 3257 cfs. Tract 21067 plans to extend this channel several
hundred feet using the same undersized cross section.
Tract 21067 proposes construction of a 14' X 6' box culvert at Murfield
Road which is its proposed entrance. This structure will have a capacity
of 1610 cfs when constructed based upon a flow depth of 6 feet and
a slope of 0.60 percent. The 100 year storm flow at this location
has been calculated to be 3129 cfs.
Future Facilities
The design and construction of a major storm drain facility paralleling
Pala Road from Deer Hollow Way (fairview Road) to Temecula Creek
is currently planned and has received approval of future funding by
Assessment District 159. This district was formed in 1988 to fund
construction of several regional improvements in this area. This regional
facility will be designed to carry the 100 year flows from the Wolf
Valley Drainage Basin. Funding for this facility will be from the County
of Riverside Assessment District 159 Supplemental Bond Series.
Based upon the hydrology analysis and 100 year storm flows for the
drainage basin, a trapezoidal channel paralleling Pala Road capable
of containing these flows will require the following cross sectional
configurations.
The regional storm drain facility should begin near Pechanga Road
approximately 500 feet south of Deer Hollow Way (fairview Road).
This section of channel will pick up and carry the Pechanga Creek
overflows from Drainage Area 3. An additional Q of 1346 cfs from
Drainage Area 1 will reach the channel at Deer Hollow Way. Of this
flow, 816 cfs will be tributary to Deer Hollow Way from the future
Redhawk development at a point 1400 feet north of Pala Road. These
-7-
\0
-
. ..-
.-
m
x
:J:
-
lJl
-
-I
o
-....:..!I!II,'::J.!II...'...; -,.. - - - - - ,- - - - - ..
~,' /;:" ;;-::;:::.\'/,...,:;\;.,./..f~,'.:.-::_C'--:; c~;-~ --_-~'-::_:c-.::---'--' -==-:'-.-. ..:--1 -i --
'", /.~J f I""':l.~.\';<,"~'//", .~;~ ," :; ',' ", .... ;..... ~;. . I
., ,. o. ~,. I " .' ., " .',
""J/"'.'''''''' .\. ,\.' I ',"..\ ".
. :" J: ""I.! I \" .,' . \ ~:' ..'1 ,. ',' . lJ'I " "
.' ~ 'I -,,, '...... . f"" . \.... ~", ,.' 1. ~ 0
;.ti')I~':-~~~~~""'\"':"\~'<:"'::'\ ,~..' q ./,t. ~.' .". '. ,":...
"':/S. '., : );;.:., ,'", ,.1)0 :-' ~,' ,"~ ~ ,.."
...., I IVI ..j'" ":u.;'\:~. .1. S
~. :'1' lA'\.".' : :.1. "ffi',' \ ~ '\ .:, . f;" . "
~".lII'fO"""''''-')):o1 ,_,,~':'. ~ l '. !
.,. 'I. <> f'<,~.. "\..\ I .', :s ,'." .' ,.'
.. "., -', ~, ,) .' '), \ G . ., .'
,.,,~ . C" '~.", ~'. .,',71 1,\' ,\.' .1 ~. y
~.~ ~I' .c;.~ '::~.., \, :.1 i \'.. ....li ).~~ -
.., .: III "_\';,:( ~ . 7lfl' '(l-=(.,....f:
~L:\' -.... ): ...''i''l'\,;t'~':1
"4 ':., :J.: t \ ,\'. 'v'.\} '.' ", ',...
..~~.!. 1).'..,\ .,,"" ,;'1J':"(~ :'~'; :~',
-, '\, I.t ~.,.:, I"~ ~. .... "'~', 'i "Jl ..'
. . f;. ., ~ , ~. ~ :..;. ) ". 1 ",
;:. ,r:...."",,\. '<".(,;i'.J} ",II..I~IJ .
~~',~! ..~_:,::.':,~/G;.~\~'\";''''.~:' ..,.;~..
.. ...~,' . .'; I"j. II .,.... ,';. .1";....
!.' \" ".\\ I..' ~"'..;:; .', '..It"',,~' ;f~.~
'1. ':l.: '111", '" .....:.,'\l.... . ~".
'~ .,.~~:~1 ...;~;'\'~~\., ;.\\. V ~ }:.~~ {
I __1 '. """:''.' ~ . :.: .~ ~ ct'~ .
.' . "\\l\"~: .:.:. .~; '~'I'"
~. "''\ . \ . ,'.~ .,~..;........,
'" .\ } \l,\I\ t. '..1}...... ';" .
, .1 I'" '..:,11 \ ...., :~\tll\"
, . '. II' 1 i~.' \ \:';'1\ ~,o .'......(;.;!~:
~~' '; \\.,~ . 'Il~~/t.." '{'..,\.;:;j ,:'.
t;"l' ~ ':~'. ,; ,,~"'\ \' ';.;., \,1/,'.1:,'
..: ~.: 1 '\ -'),~ :'\..~ . ~"\' '. t.:
,....;1. .... .. "'. I (, 1"..... .
"'~~,. '. _.1. ..; ,:~(.~: .,?/(tj!\l~ ~!~, .j ~"::,,,, ._..
'p:C .:::; ..;;.~ :.: ..',';r',' '':'-0 .:~'~'i' ~ l:~:~ ~~~~
,..Vi .:..,: -'(~ ~l'l .::~::: ".~ 1: '1JUI~' J:Q.." ;':"... ;:. '" ;"-.
~~:I.:';....':~i..,..,-1!.~.~'~I;rt..:-. q~::.:.. ~~;.; It 1".'1' .,'.',. \
l,.\: .,~,'\PI~.:U1~n~.I_.I.!::':,.\.;'1.'l '. /'I ,.. 1 I.... ;~:'_ 1',0., .:.,:..,.....
~j 'J '\I""\/~ 11-1 ~~::;;: ~ ..... '-'. ~t:' ~
>:,:'..', ::~.l~:_!f:~~:tl~;\~..I;:. .~.~ t;::'L~~ '!!... ...... It .~~~.:. .... .. '....~;. '": '~. ,.'f:.,~~:;.:,..__._ .... .
.,.1.1: ...'~I.~JI.l'f~.\,...~.ffi.,.:.~;.ll~ .::.1.,:, ~c...:., :;i~:;: !I '; .. '.~. ~l ,~. ..~.:.~'.'\...'I_ \ I
l~~\ '.~l ,:j,;,. :~,;;~;": :'i~ ',!.:'.'~.'.'. '~ ... ...i J~,\,,'~~>;~:i.1>~::~~'f:~<:'?:{ , .
~":...'(;tl;"~....A.: ~(~'j!h, ;~F ii:~ . , " ".1" " :;-';'",,"" ",\.,
t; "'1~<~t~ r{tnl{\\1~f:;~.;,;~:::,:: ~ij~! i' ~~Ir ';~f! '~.\,.~,l"" \,',;:',;:"~,~:,.~,1;,n::~,t,:,~,::,,,~,~.;,,~~;~j~,:,;,....:
i,,' . I',: . r:!. . ~!-,":;I,~,\,1j.~ :J:~i~.. ...... - - \ t ' - -- 1-..
I:' .''; ;~...~ "'~n'd' .... l'~' ;ij~! J' i :;1: .':0".':';,. .~~. . ..s'\....:..~_t';..,....;.-:,i . /!~Jtf ~
1\ '(':' ,; 'H~~1~i;\)fJf~~:!\~~ .' ~H~ f~i~':S:, '\:;~\~\,:::{;;~~}:~~~!;:~,,/;~~{~j~
rr.'~:'i':-::',~6 ;"":., .'~~~~.:'.;f,~~,',:' "-'-o-~:" ~(14D .:)~,~"S',.! .. "'\' - ''l.. "'\i~ . ..' '- .,'.....,..: ~""
,;' :" ~:;..f. . ~,:. _ t. .", !,,:~ 0 . . . I . 2)0 . : ".:\ .~' :....:..~ :: -';~~4.;;: ;;.~.)j-;:;.:.! (~:~"~~~~~
,;Ii..:.' ..j....~fI..~....,. ~ ..;,>-. ..... !~!_ ..,~!.(.., ..' ':ia '".~,~..'......1-~ ...' . ..~>:-.f'...
.. :t." _ ~~."'::: ~ ~R-'" :.::,.~..t~:... _ ow _ .....','",;...;:,.) ,.-- '__....,..:.:~,:..,.:;,.,:.,.:".....,~:..'..,:....'~...::!.:_._.~",(l,
H;"'~;:'! ,~!~~;:.; (.'~',~. ffi ~ ~ .'1i!~io "I ~c......::., i"...~ : \\.., . - ,.......,:., "7..tJ":':"<~
fl~"l' '.r ,..: ffi . '::'~",-, /.: r.' ~::ifi"~ .~.~~~ ........ :~...:. ...... . . . :7 ;:'.. /.f'/{"j~"?:-~'?~
'I.,~,.',','.', I ': .. ~ . ' , " , . " ~/ " ., ' " J' '~'I-. .~,
. ;"._<,"9' <:N !'.... . --'l' .,-' \~. .; ,,1"'" ,', '. .//,.,,", .,. 'I
~:';:':: "':"':"~~-, :~f~ ~i~~ '~ ~ij~~ ..~i~: J 1 : :~~:f,; -,..-.~.2~.':'-;\>",/~~..,.c(/::".; ,';~': \
. .. ,If.... '" 11 ~ ,... -'" , .' ,. ,.;. . .~",...l.."J. '1. . ..:.. ,~. I ,
.! I,!. i;' ~t~{ .' '!, .-'0 -~::J:l} i }j} ..~';;i;;:::;[.5\~;f~%?:,'~~V~:~
. !("...:,~:":,:,.,.",,,R~~~:..~ II '.. ./t,'.' :,'''.':;.' ';,,: !~~z ..~~~._ ~~:.... ~..: I.~',lo..,.: '::' ~- ..~~ .'~ /1:....~=.I:-":.\..",;i~:,....4.' ,.~....;I... . . \. ~l . (i.;~\:1
. , , .,:'.iIl:!'''' }";"'\"'l~}:':-/'?"'.';Fl',;'~\:(~
{'!:::.. \. ~, " ."'I'; " ..,. " ~<;o .<'0 ; '~,:l,.~.;,.:,~,'~.~,'"..:.-.:,:,~"',,~'.~";,',;~,,~,~.'_'",,:,'.;,;\.:~:,\\~:~ .,~./;:~ ;')' '}}.:;~
F::'~.~ : :/';'. .~~~,r .~~i:~,,',' ~i-i~~i ~~i~ . ~~... ~ii~1. . :' .- .'....... .~\I .. .;;: I U, :J l'~'"
~:~ .". _, ,/,-..,,' r . I 'I" ..: )'. '.:' /0 . .......\.~
~.. ..... . ft.:... ,I .... jll ;i; ~. :~' i':' F.'-:-" t;~'t,~
j,..~J:J,!,. .' ,'".-=.:: b -. "~::",~~;;,',;,"'.:',,~,' '.',' }-... I' .....1> . j :,_ .~ "" .'} ,",:', ' , ,.:~,~,:.,'~,',:,:,'. ;
;:t :r.'o! - '. .1 ii~.i:~,',,: ...':...,.,:~,~.',.,~,t"EZ ..7
~~~q:.:..~...!::~': ~. iq.- " ';'. ')' '. .. ".!':'.." . "'i" ,t.'
~~::-'..,~. ,.,.~.,~ ......;;.~I 1I..t"9' .'" " ;.... .:.... ~. {,.. ;!':.,t:.!.~.
r,;,"J> '.,."~(~' ~.", :,,'~t"- . ,,(. -;- . :.,.,
~~n-..., '1'.:-. :;s'.~'. J--. ..... . ~- . :\ ":'.~,":' ",.' .~ '.:,:.:'~i) ,~::
. . . 1-'7' .'. ~ .... .. ':t~: .,',',..,.,",\\ .... >. '1 ..~~::..:::..~.;.\ ".:;:-:-' ....
.~.~.; : ~4i;."'-:'.:'.. . ~p~ :I. '~.;!:'~~..;'\ '.:'-. ..~.:~:2.(. <~:"I~~.-.;'
~:.."i ':~~:~:~, !',:: "",' i. \ ':\:,~~/;;.':~:.'.~~ ~~~:~
rl' ~ ".~ :.""',.~:,'~,<,..:,';.:;.....,.,,:. l;. <t.' ~:'. ':."1' .'i,:~\, .~~~~
~:t; to -::r ~ ;~~.i, ;':""... - . ...../(...., 1" '\;',:::' .~.. '\
~:':'e ~ :;~~~ \~ :;~~.:.. /.:-'" ... J J:.\::":~ :...~t"': "':'\
~~:, ;';.: ;. '" .~ ~-~' ~ '1~?i'~:>\.ii ~ '.IJ'.~"~."._;,f~,!,.i.:,,~.;.!.,~~ .:'".f,;,i,..,ji,i,t.f".,(,~,'.t"';',.':,ct.,;:;
fi{;?'~ ~>... , "', ,I~~~ . . /~ . '11 i\. 4l: .~,7J. ~, .~ ..l~"I"# "';-"1
. \ ''\. " .. '~..4':""",\,', ii."-"-" \1....~i:':'~,... .,'j'''';~''_'':""
't;....;, '.:.,. ., .14'<';''1.:'' ''\. .,;'. -' '......., .,,,...\.. '1'\ . .1. 11
['" .. .,:..,., :~~;~~w. ,! .~; .r '. ';." ~'.f;~ :.f;~'....:':~.....:.,'~~:.'~::;..~~:\,...\.:~
., ,,"'.: ..'....:J.. j.' ..~.'. ...'.....,.... 1 ,......i,....~_.,.,.,' . ...,.,.....,.
. .' ".. \ ,",". "~~~~!QllK; ~ , . ,
~~ ..,~J..;,'.,.~~,f:;~,:.~;~,:,.,~,:~,.,,',:,'~:\~~~~.~~It,:'l',lj~':~:,;,.::..:,':,' ."',,';.,, ~ ,'.., ':/':;" "::~" ^' 4~V"l '-,." ,,'.
"". .,:,". ..... \;::., ...; + ...:':~~; J~~f:~i~~()~f'~
'''\ . .~. ,..~ . ::41 ffi~ ~ ... .' ..... ..'. . '1 ".; t \ ....~',- 1.. ~. t, '.~.-h~~" ~ ',::. -- =t1.
.... '. :t>...~t.I~, . ..X])>. ~ .' )~. '.- .,..,1. I" J ~'~ i'. " '. ..,:.t. :.:e:; ..oG" .;' , ::.: "1.~~'': .
~' .\,:;:.. i 1)0'. ,- ..... ..rt., .......,.\ . '\"'~~-'('h:'''~'--''''''\,'h.''''~.(
.~~. \~ ." ."-i; I~,~~:.. _~.. \..:_: ."~..:'~l"<<!'~':"':''":''':I.'~:~'': ..~'..~:I':A...:,:.~~!.~'a.!~/~..::':~~~:i~
''1'~ ~. ~ _,.a. ". "'l~ ','.., -' ........ ,. 1 ;'I~.'\'" ,". C'",,,~,,~,,),)~,\,,",,~,,,\,'-'~">I
l,...., .,..\..~...,,~... ,'? " . :.:.., \, " ..' ':.. _....~;:~,.. .\'~.~';:.;:~.~l""~.~"'~ '. "~::I\..z.,,,,;~~~;,:-\.~
";.T!H. 1 ,::. ..':..,4').' ~;:~ !, . '; ,''. '. ,': ..... V, --:-::....~) I.:'>~" '''\'~~:'('\' ~.~~!~'t..-t"'~l
~t'*;;\t .., I ',<'/ O:'~:2ii .':~ ~ -,. ~Y , :';"':-:-:'.:. ."- . ,~~,~),.-.. :::,:~~\ '0:." ;~~I:...'i."._ :' ,..~:~
f7<;~>-~ "---:y -- .-;.,-l'ii....,'-)--'.~ -.- '.' \'''1.' _-1 -----..'.-.'. ::..... - -..............-\.-..',~;....~, _.l..~.t;,r~'........~;....,'\. . .-'.,.. \1
I ,~!; ~ .."" r' 'ffi " ' . '. r \ ":.; .... .~:. ..:(..~.; ~~. ~ ~<;'. . "'-=' ,",..' ~:::.:.._.':..,1,'!;.. '.,~ "1;;.
\';;"; ...q', /.' ~.'...., \ '''1' ' ...,' " . ~ '~. ....~;": ~T~ .' '''...;:-...:-;-.r...J....{.~.'''.;:~::}:,.:). "':.. :.t-.,
,. ":-;:r.i~ . .' .., ,~,.~ l' ./',,\ .. ...., ,:...... .0(. \..~ ~ ..:l.....1,"i r ,"~~. .,....-+,.t:;~~,..~.1':~'..': ~ . '/,:;~ll
,,'" ." . ...... ,,' ...... ., - '. ;, ..._. ,.'. >-'.,'" \' ,...... :.~"1 '/. ';'\:..,.... '!l-.....-!'>o - .:.......~ .
~ . ....~, ,'./ _...... \ . . "-t . .':-".' ..... ~ :_.)0:, ~-t, .' .... .....~ .......r,' "~......'!'~.::;.~.. ';>;"-' -.-"':'"
..... ...~, "./ '0"" .' ." ~ I "~'" .f:,...>...~j . :'\. ..... "~" ...J;',l ~ .
~f,;.:o;: ........, <C.~ ..\ 9" .... J9,;,,:_~" ,-.....~......:~~ ~..~~'~:...~:~'-t:.~;y\.~.t:,.:~.~~~.......:j.#"':,{."l.O:'lo......'.,!
.......... :0 ffi\ ~l" ...:.'.,..... -.".' l ,.t,",,':' u"\'~!o .....,.....;.~~:~,.........._.....~,.1".";l.\ -t,,;\':., 1
"~,-_~. < ~ '- .,,<!;.:" .~: . ~ . , .~:-" ..", ~.co4'....~....:.~~rf'I........{,~" =.:..r.I.t~'.:.-:" '~''''J.:.V'::''~:~'
t'... ~ ... " ,.... . \ ~: .. II . ...~. ....'!r-,'t. "". !..'y.~}.......::,.;:l.., ,...t,-.a:--~$.j'...:;. '~\.i:r -~tr,"'''"t .
.'i1"'.:i:;<I".,';"')> .)> )>"ii ~~\ V'!'~ "..... "\~'.:.r,: ~':-:"':-,'~l~\~t:,''\~1'=-",\,~~':..';,:.~~ti..i~.;t:'~';'P.;'r-:~\..!.~-''
t.". ",'. F .. ~~'l. ... ;'t:'! ';".' ',."t... ~ !"1>;.{;..,:\..:........;...I,.... ,,1.l......~.,"8' "'~r.:.r;\.
',.,.....'...1J ~~ _':i'Jl \...... - .' ..,~];:"t'" .......-r.o.';\L..........,.~'('t":O"':',.,.:;"'...).lr-";,:"'II:li';.....,~':!;..~.
'1"''''', - r "'" .~. ~, -. "I.... . ". \:.-......,'~:'It.-.~'\;.--\.;......5'i.~~\~lc..;....,..'\:::....:...".'..:::.,- ;::t....~
...;:...... t-I. ,".. 'Z ~ ...,.. .....~...'..... 00". ". ...,.:'.,....j.~)t'.~~~ _:~~~.:_..~ 'r~-.\i-~-l,J,:'\tsi~I'~',~.I.:,~....\:r''''''''i~'' VI'~ ":~'J
~'":' {. .=;, ~:O~i' r ~ . ." .' '.',h. \ .,\.:. ....!.; '. ;..'~' ~~'... "-~ ".};~~""'~'~' ~~-;.~. ~. _..ik-'":'i~~~'I1~;':;'"t..zl~,~;;irl-,~. ~"1i'::~"
.'~, "" "".)> ~,' '\ .',r" ..... .",: ~ ,;,.., ',,""" ..,',;".... , 'l{~'~;.: ,;...,~;!i",y",... .~'i''''~''~", . ~\:
~j::-.~'\ "\ ~ .~T:. m \. \ :::' :'~\ \:>.;~j....~..l:~:.,;~1'~~. '~:~~t~. ; ~)~~~.(f:".::~.,1~1 ':!.d'il,\~~.). mlt~:~~~.}~~.~~~ ~ "';~~r1
.....~._.~..4l-r:::{ ...;,^ \ ~ . ,..',' \:....:)\.::.' :'.l:';~ .,I.,.,~,!~~.:.::...:;,}:':l~;,;.~;;:.j\.""!...~~~:Jc..;~"'l';~;..'!:I~~~~..::. ~~!W~4'4~~~ ....) -.;f~.
. -\ ,f". .,lJ'/\ ",,",h -...... ." I I,'''''~ f'I1J.o:i....~ ~..;::;:.:J;.'\"~ t"'1': ~~'''',"",-..........t'\.T-.:~ ",,-\"Y '.,.-' t":-:!>"'::,\l~~ :,...t..f.' 4,\'1'/
'~"I',;. .'.~. "m '. '-. ~..~ \.._'......:....~ -.. .~:.,i',:~'\:....,.:..j"'\-7"~a-:..':,. l':.~.,.......;.,'\".t~:f.';~.{,p;n,...~ "'J' !I.:...,:..-~-1fl.~..l'I ,}'{.
f:.~~('ft.A(,~-..L." ,"1\, ~~ '.,1 ...~......\ !:y.,.,..,..-=~...':'I ~.~~\:" i,.......,....',,~~J~\1\..~~v.:,.I..:t.'~~'ul:-I. '7;1orl. ,~~".-""';t:t":\~~..:i--~
1~".}",Yf':.1~',~^". '.-, F .-'...... . ..tI~~ ~.~: '. ~. :')... ~....\...-.~:;::~~ \ ,,,..,,!,~ ~'..:,~." ~.~.~~:':-..~-/~L!.~6:~. ...~f~: '.~..;:~. ~llh.sx."k,' '~~~'
..w..... "'1r.~~ '" , . "" ':'t ',f} "..\ ;~~ '11 .....".. .~ t.l.\-~, ~.,.:.~""T(" ",":li~"""'" ~"'::,: ~- .' '\f.' \ 4.~ i:H"
t~~~~}~~~:j:tq:~:~~:&~~ .i;2~:;~<~ :?;:.~:f?~,:'~~;~~~:~J.:~~~~1~~.'H,t.?~.~~t9f.c,'~[t~~~~~;:l~~~~~t~~~""
~. # ,.:...~~rv-..~{.'., ,'~:-A'~ l'~h..-'''. '..:;.. ., .~~. , .- . "1' ~...~~"-1.~"'l~"~..&...'l.i~.~""<i.~\;-~'~\ 1''''!...).'~'~''~'''':~ '..... ~
~':..,.,r.,.,;~~~~. U,'~,;;'\:", )>'~:,., "..-. ./.,... "':;; <,;,' ." .,." "'/~l'~'" ..~ '::" .""~-'" "":!:.r~"r'i;;:' ""~~.,.~,,\\l\:,,\"":~~ ,'-" \]:,~,j"r...:..,\",';;,""'.;:. ,
...~..,....,_,.,..:'~... v,"o-+ ...-......."i..uljf.:.';:::~.r'I.>l't..;... (" " t1 {'":'\.'"" ~"-:,:;'):\t1"",4.\I'" '.\' ',1~'b, ~., ~- ~~...-~>.' .\\::'t ~N~~--"'''''''''' .
:\..;~,l.i. :'>fI'1;'_':1o\r-i1'~ ",~I.:<r .... r-r~~,,;'~~:~..!, \. : i~ . /....':.:...it..~\#:..):i.... .....~,;~~\.i ~v~'i ~'\~.,:...}~t~y.~.~.~~~41~+f~:;e: ~0,..:'L.:,....~;;.I>~.t '.l.....
~~.,........"'.,,~\. 32..~I.'''--'..~ Pi" ,'-',.r)" " "'10''''''',.1.-1_.'9'' ...-j"~'J'''''~~,~'~.~"""-f''':''''':1,..i~~',""'--I') "}i.Y~
""'.......~~~J(\~.-:~~J... ....,::; ""':~",~' <:~ ::." .),(.~ . . -'1 ~. "";'.. '- -,....::\ ~1't-:'. f..1:,J ., ';:;~!:;::;~,:.~.,r..!'l. '::-:..~ . I... ".~..- ~W :''''~'l_h .~. . ~..,.,;o...t.i'.{. .....:_;,~
1t~"l}:rCI. ;"'~-tl'}\' .."t?')>".rr;~.~~'<"::';':.k1~~'.\": .'. :' ',. ',..,'-;. ~~};',"" ~ ~. :'.) ... :,r:.,..,~..:". :'..;~t.:'"~..':~~:.~'~:~''' ,'..rEt.{ir~:fi~~I-,l~::~-:!'t\'~'':(::'.
,.~, . '.""" -........ _....~ ~'1tll...t-" ',~ ..\-;;,/.) :,...~o;"."'~: . " '. ... -. ~ "t:;.1-., ..,.c, .... ,. ... ~-,~.... ",;.1...,( ~ ,,".- ....". .....:\..~ - ~.. -;"f';o ",..."-~ t:: \..'.-..... ;:_, .....~.. /,:1'
~"4'\"'J~. .....' t~':~""l ...; (~.:.;,,,'.~" ....~.~:i;":..~~"l.-~~ '. '.' ., "":"", ..)-..<", ~~.... .., Jt ..,! "'f,' fi. hJ....~.;\:'......,1...'!;1'..:..."l.'\.~;.jol ~;.......~A.#<l"f\3' ..'--....1';:>-....1't~.'i1
~'1"" ...r.;.~d71 .,:" .~(.., \..1 'l;'" '.1'\"'~T... '. . ,_: . ....... 1\ .,~''''' ,.',,' ''''I''-?' ,...-". -.' <\..;: 1 .~. ~,. ~""..... f n"'.... .,-,-.!....~...'_'"'I
.~.l.,~~.~.~~~ilifu~~,:J~'f(~:JJ ~::N~\>~;;.:';7f..~~...~:~"$.. ,.!f . .../.. .. .~:'..~' v' , .' :"'; ~.;.~.~,,;..;.~.....~~.,,~~~ ~J,~-~.~~..~~\~::>,.~3f';;;r~:~:~)~i.~;..~;~.;~,~~
Ii' ~'~'.-:l"'~~" .~ ,......,'~,.'" .'" ' .,.' .. .., , ....-'~ '~"~.-:1
~g'~\j:~~'}:~~;:-f;~t~:':. ~~~0'~:~{~\ ~~~~~,.i~~:. .. '~', '~..:~~.l'" ....., ~\ .:. .;.~ -:'~. .'.;;. ':~::'i:::~:',' ~.;~~~:t'~~' ;~'''~;~;;~~i:~i''~~~''~:~~l, ~21
'r..:~"'t''(..~~'1-''~',~);:':'' -....:.\..";:;.'...:l:.i.~M~'-\,. . ':. ,., ..,' .',', \ 'l!I& .. 0.: ...;.... '.:'~ .....:\ .:\~t.,::..., "..:':~.....' 1....~-:1...'.\...~"-~
~;,;.,~,.ii~.~I:\L'y,...-,:,.:...'~..,~. .1'-..,\,,' ...':",.. ",~.~ H/ ..~, .>;"::........{l.....,,:..., ".. ~.~';"~' ~0t~:.,.'':~'.''i,'><
~/4'to-'; . .:-,........,:.. .. ~..) \~\d r ....; .~ ;{"".:.'itl L' '. ' . ~ ""::-'." \ .~..... ~...... !:. ... . . .'~ ":" ~,. ~. . '_-!':'M-'" .' \ ~. ':--~~-"":'" ..:.~
'~,l\r,~,l"~""'''' ..,:.....~OJ~~I~...~..'":....'t;rr....,.~....... _'-":';'.. .".. ',1( '" ",..~. ~,\...'. :-:tT....~. '.'-~~\"","", ~,.: . .", :."",\~:..,ltl~~"1."'\~I~
~.,... ...,,~~' ~"t.'U, ~""'- ,.,'r,",.:..l',~~O~' _.... ",..'" '," " l'" ;..' ~>....... ,~W'~. ,,' ',~'l','.." ';ll,;.~..''',~ ",' .,',:":'i.V;,
.-... '("'; t.:~r ~'I\.;:,-,..;".T ...'.:;\."l:~\ .... ". ..... . ...,. '. .......'f"('f" '... ..... ....-..."t. ~ ." .... . . , .. " .
~""~J.~"" ~ )....~l,.~.. -,tt..~r~.i~\./:t..~.~;.F~~~,.. I ~: :.ri. .' I..: \ ~ ..... :r~.~:<"-:-~lr~~.~1'~~:\. ~:.':'\~~~".~-: .:':"::~"''7''~~' '; ~.:,..:...:...,...::
. ..... _ . ..... _.... ... ". ~ '''"'U. ~'r'~"".~..::,_.. . "_~'_'\:1\"'" .... .........-
'"
....
"
....'
....
,f"
:n'
:,~.
"
c--'
.r/~i..
. ,/~
,'11
,.,IS
",Ii
, /"
ft
.,/e
"
.h.\..
"
"t.
'1-1,
.~
"~l>
, \1,
" '
~.~ /~' I
11,) ~
I,
Ii
I:
I!
I
10.5'
6'
6'
10,5'
.~ : '. \ . . .. '. ...... ", - ...._. t
l:all
Co
r-.
SECTION A- A
I
..~j
Ii
I:
"
I:
,
Ii
Ii
,-,
I:
10.5'
5' 5' 10.5'
,. ..... '.' .. .........
',0/1 ::otll
="';11''"'''',
_III
Co
r-.
SECTION B- B
10.5'
2' 2' 10.5'
11
.o.."J
. .... ..... ~'.;. ", ~
I~/J
1- ~'"
/11_11 .
Co
r-.
SECTION C-C
I
'-_1
I:
,
Ii
- ,
10.5'
1.5'
10.5'
:" 1:zJ1
Co
r-.
Ii
__.1
II
"
I:
SECTION D-D
-9-
\z..
PALA ROAD STORM DRAIN
CHANNEL SECTIONS
EXHIBIT "D"
I
I
I
I
I
I
I
I
I
I
I
I
I
I
-
I
I
I
I
flows currently sheet flow through this area in a northwesterly direction.
They will need to be collected in a storm drain facility and delivered
to the Pala Road Channel at Deer Hollow Way (Fairview Road). The
channel sections between Deer Hollow Way (Fairveiw Road) and Wolf
Valley Road are shown in Exhibit D as Sections C-C and D-D. The
hydraulic calculation for this channel section can be found in the
Appendices of this report.
The 293 cfs entering the Murdy property at Wolf Valley Road from
the Redhawk Development (Drainage Area 2) will have to be carried
to the Pala Road Channel in an underground facility. The 100 year
flow for this area when it reaches the Pala Road Channel is 580 cfs.
An additional 192 cfs enters the channel from Drainage Area 4. The
channel sections between Wolf Valley Road and Loma Linda Road are
shown in Exhibit D as Sections A-A and B-B.
An additional 370 cfs reaches the channel north of Loma Linda Road
from Drainage Areas 5, 7 and 8 as shown on Exhibit B. The 100 year
flow in the proposed channel at this point is calculated to be 3257
cfs. The channel section required to carry this flow is a paved
trapezoidal section with H: 1 side slopes, a base width of 26 feet, flow
depth of 6 feet with one foot 'of freeboard based upon a slope of 0.35
percent.
Of major concern is the future connection of the proposed Assessment
District facility to the existing undersized trapezoidal channel
(Zone 3, existing improvements). The existing channel along with the
improvements scheduled for construction as part of Tract 21067 do
not have sufficient capacity to carry the 100 year flows and will require
removal and replacement with an adequately sized facility.
E.
CONCLUSIONS AND RECOMMENDATIONS
o
The 1600 acre Wolf Valley Drainage Basin generates a 100 year flow
of 3257 cfs which is tributary to Temecula Creek at Jedediah Smith
Road. These flows currently follow the Pala Road Channel.
o
Existing Pala Road Channel improvements have insufficient capacity
to carry the flows which have historically flowed in this direction.
This currently results in continued flooding during the rainy season.
o
The McCutchan Company's hydrology report for Tract 21067 calculated
the 100 year flow at Pala Road and Loma Linda Road at 1897 cfs.
It also states that the concrete lined channel adjacent to Tract 21067
(Zone 3) has a capacity in excess of 2000 cfs. Both calculations are
incorrect. The 100 year flow at Lorna Linda Road has been calculated
in this report to be 2888 cfs. We have also determined the capacity
of the existing paved channel to be 1160 cfs based upon one foot of
freeboard and a slope of 0.35 percent.
-10-
\"?
I
II
I I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
o
The City of Temecula has approved construction of a 14'X6' box culvert
at Murfield Road as part of Tract 21067. This structure will have
a capacity of 1610 cfs based upon a flow depth of 6 feet and a slope
of 0.60 percent. The 100 year flow at this location (Zone 3) has been
calculated to be 3129 cfs.
o
The existing bridge crossing of the Pala Road Channel at Loma Linda
Road has an estimated capacity of 500 cfs. This crossing was approved
by the County of Riverside under the conditions of approval of the
Redhawk Specific Plan. The 100 year flow at this point (Zone 2) has
been calculated to be 2888 cfs.
o
Immediately north of Loma Linda Road (Zone 2) exists a 600 foot section
of the Pala Road Channel which is grouted rip-rap. Its estimated
capacity is 660 cfs comp'ared to the 100 year calculated flow of 3129
cfs.
o
At Wolf Valley Road (Zone I), the Pala Road Channel contains a double
5'XI4' R.B.C. which was constructed and approved as an interim facility
by the Riverside County Assessment District 159. This structure has
a capacity of 2320 cfs which is sufficient to carry the calculated 100
year flow of 2386 cfs.
o
Approximately 180 cfs overflows the Pechanga Creek crossing of Pala
Road (Zone I). This area lies outside the study basin, but its overflow
should be incorporated into any future regional facilities designed along
Pala Road.
o
The Assessment District 159 has received approval for a future regional
storm drain facility along Pala Road. This facility must be designed
to accommodate the requisite 100 year flows as well as to coordinate
and or mitigate the connection with existing regional facilities previously
approved by the County of Riverside and the City of Temecula.
o
To accommodate the 100 year storm flows along Pala Road, a regional
storm drain facility will need to incorporate a concrete trapezoidal
section with I!: I side slopes, a base width that ranges from 14' to
26' and a flow depth of 6' with an additional I' of freeboard.
Given the design requirements and scale of the future regional facility,
the Assessment District 159 may want to explore designing an earthen
facility where land use constraints permit.
-11-
\"t
I
I
!I
I
, I
I
I
I
I
I
I
I
I
I
I
I
,
I
I
I
I
HYDRAULICS
....
\~
I
I,
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
\: .'. 0', ,~, \ \; .~: .,;: _f: ~- ;': '. \: '; ..; .~: .j: .~; ,', .~. .", ." .!: \. .\. ,. .
',' ,. \. .,. '~.' ."
... .-.. .
': ,"- :': ,", .\: .~: _I: :,. ;.\:
. . -.
'-.hi "i;'o':)r;.:_ L :'~p"i..i 'i J ,".ii"" ut-';,"i}'j T 1 Uj' ,':
"~i~..t ::";r":IL. :A:.:.;n.' 1 j'"! \ r' t:.~::. i .! t:,,, ! i.,
C.I,AN!"JEL Zl~~iORIZC:i~TAL!VERTIC.AL)
1 " .:i!~!
:l ~ :::,U
" I~i (:1 '::"
r 'jt:h J. L j.::;' i"\ ;':~ll_'" "/ c.:"" i i. In.- L_}. -.
1...0;".;':, Tr;i\,;T :~:.Hr:!:'~I-.~EL ::;.'.._C:F-E ';r--i::I:..:. i.. F"E':i::::T)
"'" ..;-
. ~'-~'" ' . . ',' '-
-.., i. '..if~-';"j ;"..J. '," '""...:''''
~ U-1 ~SU
. iJ-'!L1j...j I rL~'::-. c. ;::;.: J: C. T i \~~:',.j F-I':;\~. TIY:: ::::
'-'n"'
. .._.-
,1'1.:-;;__ "VL.r-'
'.,;,,'
~ :'j (.. 1_ .:I~:; j: ;.,.j~:i~i;..:,:pj:':i T J: Uj'.! ~
t:: ..~~::'~::: ~.; I t> r ;'i '. f i:=:::: T
":.....'"
~ ~_,r ":"j.:..'; i"i :.FC.L. i.;
r "~' . .;.
.2u/.. ],;,:,
.,j ,.
,'.,,, "
"'."~,.. .I. .
~R[i~~:S:~tJ~:E FEET!
1 ::', ~
j::~L!~:i;.)
,:";1.-,:"
. ,- '-' ,"~
i.'.:i_:.f'
"",' .
.,;.!,.
,'."
I::' ,:';::0: :~\ :~':";_::~' 1:::.
,'i' [:.r<,':,',,;:::-~,~:
'':':1':'..'
T:= ,.
......' .i'-
-----....--....
."...-..--....
;:i::,;"
':-J"; ;:.;,::.!)
',.
r-:!..;;t.:
\,.'i:::LCii:.L T..... ',j.''''',-' i.'
:::-.::::.c."
.,'\::!'
r:~ I:! ~ - . : ;: - :t~. ; ..
i"
'" ..
.t' i :Cj'!E]',i i"U!') ~: eel],,': ',j,:.
'::~ ..j. :~, -t
'-j ;:.:.1...:-'.' ",- ~ ;
r,;:;.;.,1,.'
E:J'..iE:r-;:!~1 Y '. !::' ::::i:-" T .!
=..
.,'....
" - - -.
F; __._._ F:I::TUFI',J
_.~....u .~__.._ _._____"
...-.....-....-..---.----..-.
c.l::; ,[ T j: C;:':':_ . DEF' Ti-i r:L_c;l".: 1 r,jFC:I:;:j'!,,~ r I U!\l ~
TCif"-L'ii.lJTH (FLE::Ti
-.. ... -." .. --- -.
i_.:":l J It..HL
::: I~{ J T .I. C i'-'il..
":':':1 T lC'::I~_
,.:t f
I: r::: i r I C.!';L.
t:.h 1 'J JI...;".L_
:'::j \/E F;:f:;:~~!:::I.1
::.r-': '[ !tl._HL.
FLI.~:~lJ
["L.U\;j
F:L.Otl)
;--,tl:E.H !, ::-l::.:Ui'-\; '-:!:: 1~ t::E I' -'
'-: .j' ,~: . I, ~,.~: _~: .': .'1, i-': ;!.: :!: .j: i!: .l:
/.....
d
i..;"', c,':lnJ:.J.(IU2
-... ..--...-.-.-
." _. ._. n_ ..._ _._
__ _._ hH _ _ ...
".. - -. -.... ...-.
:~: ,~. '." \. ". !.' c. \.. I'
.-.---. -.
.- -. -. -.. -. .-
.-. -. ,_.... ......
.... ....-.--.-
~. ~ " .. " n n n
~ ~ ~ " . . , ~
': ~ ~ ;; : ~ ~ : .; ~ : ; : : = : ~ : ~ t-:;;I=::::.ul t..~-=-. :=l~-::,t.i();"-l:-';::::: ~ ~ ~ :: :: : : :: : ; : : : :: :: : : :: ~ : :: : ~ ~
~1YDRAlJLIC [}EPTH(FE~T)
(-L(~~ HI;~:~f~i~~ 'LL.O:_.(fi~F~ET!~:E~Cw
L-,CF:'Ti.-i', I:::-EET:" .::
S.91
\ '. L_ '..' Ii.! t" f.,.:t:. :~:' ::.,,_.i ::": ':; i"it_li'!i::.\': 1 I. :;.., '" F;'l_.'U;'~i)::::, ..'
C]~ITIC~L FLOW veLOCITY HEAD(FEET)
~-: L.'j,'.,i ':: i-"I:.:,:_.l j~.l t.. Lj'~t.:.r-;:i.::1 'f :,.t. l.r~'l J ::-
~;i=, ft .2~5
~. ..-\'7 ':,-.
":'.', ... ~ ..'..:..
~5 ~
1.'::.14
.L...:,.i2.l o~ ':.~!~I
". .....-
~'~ (:,::;Ij
. '..i<:=":'
~ :::
".);-.11'
:... :..;,.";;"';:-;:'1\: j'
hL:~,;..fl_.'j ::"
,..i,
i,j.'T i:::~.. ::.':. ;:,:E: T L,~fd' i
i:,::,
'::':'::.l"yt. :~ i'~;\...;~-:: )
\r.,
J
I
I
I
I
I
I
I
I
II,
I
I
I
I
I
I
,
I
I
~
I
,j
I
. ....1'
_.. '"""i'
.l:-.lr"1...'f':i"';'.'li ti..:ii"!.'
.~:I:.,:..:~.I::j:..,_"I'.. .~: .........~. J'*.!:,,:., .....:;v~~:..:.~..;~.!:.~..:.~..:.j:..:~.~.~.:~:~:~.r.~~.!::~:~:.!:!:
.:. l'~i." in.:
,~:,..r; ::i"!;-<.. ,,:L:.'
''''.1. ...
.11',-
.':',.l,ii.,
C. :'-,;':~;;',~:".i~:: i_ Z 1 ',!";(~~; 1= '~ij'~ "j-' r'~ ~._ ;./ ::::1::;; T I !~.!~!_ .!
'. ':!...' I":, .-:. '..if i ! ;-1 L_,-' " C :.:'; :- :~ t", i'~ L_ ,;
'_.i_;j~'.-=. i l-i!"..! i i~.:-l.~;\:.:\iC!_ :'~:.L.C:~:: L ,; FE)::: T./ l-7E:LT)
i..ij"; L i~' ,_:f'..i"; r LU;.'! ~m t- ~:...'
"_:iL...:::-::',,"f,ti)
n;:il'~i',.; I i'..j(i:::, ;=-6: I in:' ! 1. i.Jj"-.:
i*C!F: :~
,,1) 1 :5!,)
j j,'_n"
....no.._ _. _n _n
.. _" ....... "...n . _.n "".'_ ... n.. ..... ._. _. ,.,. ._.._._ .... _.. ,_u"'" _"_'_U ... ._......
(--iC:F:. i!-)L" [.!i:::F'"TH F:'LU~-; I r..lf--I~~F~;J-''L-:.)T T Cl',~ ~
:. L.(H:,i
.C\f-~':',~::l:J I j>Tj-j < F'Ef~T i
f(.:F' -.;.Jl L.'T;'j:. F:t::.E:-r.;
=
..," ,.-..,
~1'.';:' ~ -.:; ,..
;::.1,.
:~; 7
i-Li_~~J i~REA~~,~~li~RE F'E~'T)
H -i .,...':~<i-
l'i I.
._-',,,..1.1....
j..:E::~" fr.j I., );":'C:E r)
,.j.., .f.':'
i::U~i',.;
i~\..'I.:F;(~!.:1F.::: \jEL.!.~!~:.I T'y
I,: F'EI::T./ ::"~L:.L ~ }
:_.:;.~.~ ,::.. i_ hT'! t'- F':Ui...i1.:t.. r'-Jt,:!"'n~;,::.h .-.
t ~ ";::i::, ";
i'-']": !~: ':.. .~~:~-. 'J F: F::
!"iCi!"!~:f:'ri...!r-i (F'Cd.)~'~.i)::~;)
,.;.;t:.:';h-,,:lt::.J,,;
"c::J..t_d.., !
,i;:::'I'"I1.' ',Ft:T:'-(
;~~.,:'::'E':: l :'- .J. t.,
C:i',;~::::i-:;:l.::!\ '. f:j:::CT.!
.:O};, 7'~=J 1.
1. . ~::u
1. ~ :'::':lU
" OI)::~\':jUU
.-....::
.-. -. -- -. ._._-
.n n. ....... _'_H
... - .-. -. -- -..-.
... --.. - .-- .-- -. --.
..u....____._..
-. ... -., -. .. .-.
":~l) I) ~ :24
1~j.i:,3
1.2;:;::;:i:,6" :~IO
.~::. '?':~ 1
i" 1'1=.::;;S r:;:i:::TuFd',~ t.o CO{ir.'.1.n;_~e:
-....--...... .. --..., --.-.
....--...--. --- .......-,.-.-....-..-
!~.(;; J: T't ~>':i:__ .. L : i
I! ;j. (:1;:::;:'.]:-:; (I t=n,,! ~
'..-'-.'"--;
i..,J",:~, T L C. iL i" LUi,:; T~..
. --.. ", .,......-....-.-
- ~.:.; 11..,; : f"l 1, f" i::. c:. f i ,-
'. j-; I. i \.'_.i-~L r".. ""d..Cj'j :'~_"_)!.";"tj:';i i-'ct::.
C:~iTI(.~L r'LUW ~1:~;R~ULi(. [!~PT'~~~FEETj
; i. ~._ ;--lL \' [",_,i,\i ;"-j, i::..1 ',.:'..i:~t:.
'::.U..I!".l:
..-", ,'''.., .....1..,
~ f' [:. r::. ;
I.~.F;; I T j: !.~.;AL
I:i::F: Tr-t ;: Ft::E:-j. j
;~." :::=;.)
i ;(,:r-iE;": T Uti \ F'C:'};'!lY::.)
i. i 'i ~..., i:-i L.
i- L.,..:~;j t:"~'.:J".:::::.::::.UFt:.
.,+5 ~ Ot~.
.,:~.3~'. ._.,....
=
-. .. \
.-' ~ .... ,.
'.. i'\ ~ i: l.. ; .L.
-...t_......__. ,':' i,
" '--_'...- .,.1 _.'_
L.nt~T':;":J'{ ~.l" c.t:."1 ...
l-l\'::::;"-,,.~,i::;:' [;:':I-Trc.i:il_ Fi_l~!~"i \:'ELUC-IT\! H:-:: J'4 i) (f:-EET)
:,' ~ ~) -i :.~::
~ ~~. ~ ~ ~ ~ ~ =::: = ~ ~ ~ ~: :F:!=:.;:,ult.'.~. Cq:.-,t.!(){I:.:.: ~: ~:: ~
, 4 ~ .~ " ~ "_ ._ ,
~ . . ~ . ~ " 4 "
..-.- --.- -.- .-... .-.-.
... -. -. -....... -. ... .-.
.........-.--.-...-
.-.-.-.-.- -
.i.":'s
. l ~~: ::-~.f.. ."f .::; ~ '.,.
~-!. ~ b':;4
....i:., J.l'.i; t. !_.'i"(I',:En r )'(E::-.d..!i_'j .:) :::il" ;, F'r'!:;;':~':O:;':, ;.::;E'T ;Jl=(l'j "I: CI CC nt.I ;''',U';;;:.J
" P " K N "' " ~ ~ . n ~ " ~ '. " ~ ~ ,. , .. " " "
n n.n~..~. ...6. Kn..n..~~~
n
9
I
I
.~: .f:
....f:;!..
1:~:.~.I.~:l:.\:.~.~!.~:.~:!::~:L:~:~.I:.!::~.~k~:.~.~.~.~.!:.!::t.".~.~~.~.~.~.!:):\:.~:~.~$-~.I:.!:*~.~:~.l:.'::!::l::~.~.~.!:.f::~.l.~.~::r:r.~
I
I
I
I
I
I
I,
I
I
I
.. ti;'::d)j
Lf"..:'....uT
1;.~~:ClhT:~if i;~.:,'.i':,:
-------.-------.--...---.-.----.-----..------.----------.-.-----..--.--
.:I.'I":i"iH+-_ i)[::,F)'j"H FE.t~'T} _n t:." 1)1)
C.i.'!j-:4r,;;',.:E::i_ Zll,j.1UF:Ii..C!I)TI~L-./\iE:i:~;TI1~.I~L) .-
J. w ~51)
L " ',:-;(1
i.. ,,;::' " ~'~'_;F;.: 1 .::. C'i' If ~2'; L../ "J Er~: T .1 C {::"L.. :' -
,:.'~i;',4~=,Ti':,;'~T CHf4!".Jl',it:.L :::.L.Cif:'E \ Ft::i::::T/FE:F.:r ,I =
,,(11 (i(i(l(l
.?;::;;:::':::;ft I,i!,!
;ji'il f. !.:h:il f. L.l...;\.,1 \ '.. ;.:: :::')
n_-::;,~!',J I f,!G':;. Fr~; I !_~. T I CIN
Fj:'C.TCiF~ ==
. Ol~:5(i
... ---- - .... ...... --. -- - -..
.-..-- ... ... -. -. .-. -. -.. -- .-.
... ....- -- - ... .- --. -' -. -. .- .-. ... -.-
... -.. -- .~. -. -. -. -. - --. .~. - - -. .-
!'.~;~;;~:J"jri;_ ... L.:;:::r:, T i4 FLU~"j I l\jF (:Hl'IA T I l~!i'~ ~
-...-...--..
.....M.... .
_ ... .... _. _ __ .... _.. _. ._ __. __ .._ _ _. _. ._ _ _ "M ._ n _ ._ ._. _ _.
-.--------.--.-.-----..-------...-.-----.--.
i::~ i_ !~;~)
E::.~-.:;.E~,J I l.'T;"'; I, f~'EE T }
11. "i l
j !_.-j.:. n ;',i :lV'j f-i !,~' ;.:'.~.~~ T .!
. ':~
..;.....w'.:'.!.
- ... _.... ...., - ,_.. ...m ____._..~
H;(~h~:~l~UHK~ r'~~J;
1.,]. " i:;i':,
: ; -{~. . ".,~:._IL .!, :,..' ~.:::.}-.. ri" ;:- F~:;:::"l ,!
.2:~:~ 7u
'-i'. .li:;',
;.. ,,_1=.~.~ i; i[:.i ';f~1..~d:: \."I'::L_I~!I=. iT \' '. i"l~:i~'j ./ ::".[::,i._:" .I
~~" IJ 4;::
..... ..... . ......
. - ;--: I::. ;-:.\ ~::-. :,_: ;..~ t.:.
'_.:\ ,1 i.. Ui"::'1 j: h:C:u.L.E ~'il..:i"i't::j:::_f':
{. !~,;".!t!;~i'..j FC.if"! !. i:::'I~!:..!: .),C..:::,.:' -.
.- ;.... i. .: )..~ i .:; i:~. .l,l
.. o-~, i::: . ! 1-'
1. ::~2U7::; w -f:)
'~-~. L_ i.'I....)
i--'!:::'_h~": \f LC i .'
. ~.l
11_.
i::i..J!::::FI:i..... '.: 1:::~::f.:::T >
J..c.!..721
~I'~~S RETljR!~ to (:.J(I.tl(1~A2
... .-. ... -~ - ,-.
.. .".---...
-----.--.-.--...-...-...--------...-.--....---.-.---...-----...-.
___...__......___..~.___.______..____...____..__.M____._______.
... -. -. -..- -. ...-.
0-' .M' _. _. _ _ _._.
....... .mn _.. ... _.._....
................................
I (~F.cn::;;j-o'ij.:; T I Ohl:
CRITIC.AL-['EPTi1 Fi_GW
J 7. ::;~i
Fi_O~J TOP'-Wi[}T}'1~FEET} -
FL_(.'~ ~~f(~~I(SQl:Af~[ F:L~T}
.~: 1-~;" .4.l
CF~: I T I CriL
:... i':; L 'f :. !.~ {.oj L.
C;'~ IT i C.;'~LM
C f\ ,i, j j, :._-t:~i.,..
CI:;; I T' I !~.r:i!_
i~. i~: !. '\ .l C j'-lL
(:'l'.""EF'.:i':;:_~-iEI.'
FI_OW tiY0RAlJLIC [)EPTH(FEET) =
Fl_l.'W HVEk~GE V~l_OCIT~(FEE1!~~C.
[;EPTH(FEETj - 8.74
;-'I_.::.i~!,1 i::'F';~~:3::}Uf',:E .... i'II~:!--[t:.I'ITUr"J:" FOi_W.li)~:,.1
CRITICAL FLOW VELOCITY ~iEAI)(FEET)
~) . r:;. :,1
1._"\ -, :::!-.:l
i.::-~J~5.l,-t~::';U
2. '"'44
I 1.- i~'; 1 T .l i:_ ;"-41.._ ~'L.u;'~ :.::F'l.c. J. i~'- I C E.j'.~E.F;t:;I'{", F'Et~T;r -. l .:. " :::i;:::3
.. ~:: ~ ~ ~ ~ ~ ~ ;: ~ ~ ~: : ~ ~:;: ~ : ::: ~::::::: !:;;e:~ul t.s Op'r,:.iOi'"J:.:,::: ~ ~;; ~ ~ ~:::::::.:i:: ~ ~::::: ::::::::::::::::: ~
.i ':c j--'h' .'l i.:'f I~ UJ:':F~i:::.I'-1 f ::';f.:.:::'UL.! :-::. C,tM (F.r"i"".~:.:~:. F(t:.'! UF~j..j 't () C:C,";7,:.1 ~''',ue:r
I
I
I
I
I
I
I~
'""
I
I ,::""",,::,,::::,::,,::,::::::::::,,"," F:,= :~:>-' 1. Co' C,~'t, 1 0(''':: :: , , , , , , , :: , :: , , :: , : , :: :: :: :: , , :: , , : :: : : :
I
I
I
I
I
I
I
I
I
,
I
,
I
I
I
I
I
I
.1:.I:,~.~~:,.~.,:.!;~~~.t:~.~~:;I:.~~:;l:.;:~:.~;.j::l:.!:;~.~.~;~~:.~.!.~.~.I:~:.\:~:.~.k.~.S.j: ;~;~.,....,.i: .!:;!:;~~...k;~:~.~.!::~:~,~_!::~.~.~.~;~.~.~.~~
: .: (~H;~il'~r.;i:...L .1 j'~)' "t.:
."--. "---'"''
.1. ,'ol,' t.' ["" , !,", !
l!_ ;-j.
;'-.I.:;-<i"I,:.L. L
.- ....-_.
;:~. ro'- : ;,) '- r-- C.t:. ) "
~:'" U :..i
(.~1~1~~~E~ Zl (h0RIZ0;'~TI'iL!-VERTiC~Lj
1 ~ ::::'1)
'.:- .,:: I, :-~UH.1 ..::. i: ::"1 ~ f'~L ," .... i::.:::'; r .L:_ ;'-1L, ,
i. ~ ::.:' '~i
!~: '~:i-':'=', ~~ i~i',J T i:,;"i.4:'.;1'.;E:L :::,!_Ci:.: E ,; r": Et~ T,' ~: i:::r:. r ..'
. U.L UuU:)
~_:;'! l;:' :>i(J"j j:' LJ.tr.1 . !.. ;.:: ::~'"
.,::: ;~~ ,~:. '::~" (.! U
\-i':'i!'..j:'~ j: r,J:~~'~, i=-:::;: i C. T l D!',~ i=I~C ,(It"";: :::;
" I) 1 "5(1
_. _. __ _ _........_ .... u __... _. .. ....M ,_ __._ ._. _..._ _........_...
....._.__. .___.............. ...... ".. ...__.. ...__.....____..._...._._.M__........._...._._.....
._. _.'_"_"_'U
.. ... -.-...-.
.._..._.._._.......n.._. _........__.__._
... ... ... ... _. .~. ... -. .-. .- .-. - - - - ..-
i'.~!.>~;i..t;L.- ["::J=' T;'i F'!_O~'J I ('..)F(A:;;i"'[,.::: T I i~:d'.j ~
BASEWiiy"(I,(fEETj =
lU~(J:=:
..:.:d. U.;-~;
IH.47
1~' L.U~lj . r(.i~:'" ~:.,i:l (I l H \. f: E.!:'::'} .I
I=LOW AREJ~(SQUARE FEET>
;--iY l.:t(I-\UI_ 11._ L:[:::F r;..j I.. F2.E'!,.!.., '-1- ~ t:I;:::
I~LO~J ~VERAGE VELGCITY~FEET/SEC:.) -
":0'-:, .".'
.':"'-' ~ '-'.,:"
~..~:"'I'1. I:' i.-.'hT'! I.. i:(Ci!)[::[ l'jUr~I.FE.i'~; -
":;:,,(1
('F':i=:::':,':::,~.JFE .~- 1'.-'iOj'.IEi'~TUJ71 (F'C!U;..jD:~i)
1 ,:<'c: 6 ,:'4 . eu
- I ..
::;;..":"':t..::
~~\j~F~~G~l) ':~{..('CITl ~iEA0~FEE'1
'SPEC:lj=rc E~'JERGY~FEET) =
14. 44~'
F;' 1""' ,::; ::::: '3.:. ~--;.: E T U ::;~ j".J
.L.._
l_.l_l
cor'Ii:. i r"JU2
-.-.- ).
......-..- -...... ...-.... -....-..-.---..-..
- -...-..-.- ... -.. -. -.. ... -......- .-..... .... .. --
...M.-...M_M._....._.._._.u
---..-....--.---.-..---.-..--...,..
.M' _. ._ ..~ _~ _ _~ ~.. _..
....... .-. -- -.. -. -. -....
..-----.------,-.-.-------
-. -.. .-. -.. ... _. -. ... ... .- ... ... -. .-. -. -. _. -. -. - -
CRITIC~L.0E::'T:~ FLOW Ij~FORI1ATICi!.J=
1~.F;:J.rIc{~iL f.-LCi~:J Tc)F-<:JIi>TH',F"EET J
3-:;,.1);:;'
.l .~;, ';:'. '.:: .'
~_ t..l j .'- '_..,;L i":" Ur..; !..'-,r';t::.h :':.,:)l..'h,.<j:~ t. t:.i::~ r...
C:RITIC.AL F:_G~ HY[!H~iJLIC 0EF'T~i~FEET}
C _-:."
"~!. "~'"
'.' j";.~ , ..
,.". ......, .'
r~1 './ ;::.r,!"il.;; L_
':L:.L.U!.... 'ii '{ " f. r:::t:. r ...- :::' r:..:. i... ~ ,.L
1 ...' ~ ,_,,_,
..;.i!_.
;....u;;~
i:.;:;; I T I ~.~.H:_
DEF'TH \:::';'EE r;~
;;:: " t."~':'
I...;", t I l:...H:_.
I': L. i...; ;.,] f"';";!,:~ ::;.: :~. i..;j.:-: ~~
~. i~!Ur;i:::.I<i fur..! \ F'UUi'.iL':::o.!
!: i.~. .:;i.-.:~ 7 ~ .2 t~1
'.' "-'-. .-. ....,,....-.
J-1',,-'I'..:I";i'-;i...c..V
C;=;: I T I C::~:ji_ F'LCIVJ
F l..i.,:;,,! :::r"'ci_..:, F i.1...
VELOCITf ~~EAf)(FEET)
2u 771
=
L.;'.(E:.~':!~:I"( ',~'. E.!:. T )
l.l..
..,., ,
"J.":,';;'
;. i:': f. T L l:..i-IL.
l ::: F"j-( i. ,'~T i_ !..'j:(hl:'J.j r Fd:::.:~,!._:L. T :~:, ,::'t.
l j:;' t. ~':.-:.:-;;, t<F;'"j l..'~(;'l t () C())"j i:..1 i'''IUE~.!
\ct,
4
I
I
I
I
I
I
I
.
I
*
.
.
.
I
.
I
,
.
I
I
,
,
I
~,~":,~~,",~~,~,,,':~.~_~.~.~.~I:.~.~.~.~~*.~.!:.l:.1'.':.:::I;.':A;..::i':'::\:;~,I;.~;~.I:_\:.\:~~:~A:.~,':.!:.~.l'.~;!;.'~~;~.~;!:.~ .,..~.~ ~.\:~:~.;..,.;~..
,_!'';:-:;.'i".k.L .i;'..;i:"ui"
'- ;'-~f:;..')':i'+j'l' T :_'i";;
:~('f~:-!f~L i:~~)~jlfE2-r) - S.llli
C.i-1;ij'-.li"..lEL :~ 1 1; j'11:iF: i iC:j",.;T [:'L/ \/EF.:T I :~.i~L) :;::
1.. ,,~: I, HI~,h: I X Ui"': : HI... / \!'E::i:",""I" 1 i~ t:1L} n_
;~ '.~i:'-.i:~~-,-T{';)',IT C:"I,::'lj'~NEL ::~L.OF'E. \ FEET /I=-::::ET)
J..5U
.l ft ::"ii)
,,014(IUO
'n. u!=:;f"i U>.:,l !. 1_ F ::.~'.. ::
., . ,...
.~ ::;,U:::.. Uu
i~)[~;'-.:j".1 i j'..;Ct<:"
FRICTIO:~ ~ACTOR =
. (11:-:';(1
... .,., .-. .... -.. -. - -.~
.........-...-.-------
------.-----. ----.-.------.-.----.-.------------.---.-----------.-------.-..---
.._.___.____._..___.______._____._.________.__________.____._______H__.___.__________
f\i1:!F~,i.l;~:1L... i>;;;:F- TH F='LC:~::; I l\iFOF:j'i!~ T I i~J!'~:
.E:f--":iEl-,J I i> Tl-j (FEf~T;
,,'.4:2
'-.; \;~"
rei,::' n (:j 1 fi'T j--j :, F E.t:: 'i ,;
...::: 1. .:1-.2
=
~~~ AREA(SQLiARE FEET)
;..., ", _~.:h ...,;~..iL. .L t_, Ul::.,~:- T'J-! t. F-1:::.L l ...
74. c30
-'. ~:: ;:.=::
~::'L~!.~:t.; .:t';.IEF:.I~I~E VELCC I T\' (f:'Ei::T ./::\t.:C ~
2>+'>+
ur'i :, r' :_.;;"~i"f '. i-,,:,:":UUi'::' 1'.!j_.!jtF~:::'j--,; :~:
...::. > .~.: _, .l
::<~~,'i:-::: ; 1'- -_ -;. t:i.=l:"iEj',j'r;.Jr-'l f;;:::~:,U;\j~.':3)
':~-<:i421 ~ +'-.
-;-..- i:;.r\h;:it:.!..' "~'[-:L.I_.i!_..~,"j :"11::.( d.,; ',I:: t.:.i:::
'.:f ~ .l.2e,
::;f:: Ci~:. I i"7:j: c. E::i....;t:i.~:i.:~ Y I, t::':EE I} ==
15. J.2(
Pre3S F~T~RI~ to CO/'ltlr)~je
--..-.--..-.-.--.-- .--.---.---.--..---,-----
n ___ _. ,_.... ._._ ~~ ... _~_. __ _.. ........ _.. _.. n. _.' . ...._. ... _.._ _. _.. ....~.
-. -.....- -. ...".
..... ... -.. -. -. -~.... -. .-..-
...............
.......-..-.........
----_.._~---_._--------
__..._..H___.....,_._._______
!=.;'~' :.
T I C.:.~~ -. I'Ci;'-'TH r:'LM:=:~,\j I i'.;:::~ l:iF,(I i; T I !~lr--J::
;'~.F~: I 'j' I Cj::-jL F~L.U'A
!_.;';.l i .1 i~.l-niL FL.:_.!',')
rOF".v;lDfH(FEET) =
":::"}. 1:;,1
i~F(Eri\SQl.iAR~ F'~E;j
144~.20
i.~:.i'-;; IT i C.(2fL FLU~:J
~iVDRALiLIC r)EPTH~FEETj - 4.87
j~VER,~!~~ \}EL.O~ITY~F'EET/EEC.j = l~~~~
i_. ;--( I. 'i' T !~. ;':il_ J:" L:~:;~,.j
(::f~; IT 1. C.riL DEFTH', F'!::ET) ==
i:;:.7J
t_ ;~,; t r J in Hl..
,:'::: \i E F I~ (~E-= V
F L.(}iLJ F'f'::::.::):::.UF.;[
r!()r'iE:j', rUI-i I, f'CiUj'.~D:::)..'
7X7::;'.!" ':14
.2.. 4.36
cr-;: I T.I C.r~l_ FLO\;J \"i::LClC I TY HE{;n (FEET)
f.:.i....l~;~:...l :~:,F..f~:C 1. F 1 C. Er.~i::F\:;~I.( ~ FEE -1' > -.
=
11.
I:. h !. ~ .l t. f.,.:....
il....:-.;
~ ~ ~ ~ ~;;: = ;; :: ; ;; ;; = : :: ~ ;: :: :: : :: ;: ;; ;: : :: :: : :: : ;: l=<e:::.tJ 11:.~-; Cii='t.l on::.:: : : ;: ;: :: ;: : :: : :: : :: :: ;: : ~ ~ :: :: :: :: :: :: :: ;: : : : :: ~ ~
l~ F'f,lr~'r (:uRk~rJT F(ESULTS Ot.
!" ~:'i'" ~::::,~.;,~; j:-(E'l'Uf~i'l t () ccn'c]. nC;.::!;1
vJ
r
I
I
I
I
-
I
I
I
-
II
I
I
I
I
I
I
I
,J
I,
I
~,\,~,'::~J:.l:,":~.\:_I:~::\:~~~,~.,:!:.~.~*:~:~.\:.!:.I:.~.!::~.I:~
*~*:~.~;~~;~*:~.~~;~*~.k;~*;~*;~:~:~:~*~**,~:.~~~.~.~.~.l.. ,.:~
. ," )'1_ hH!'~:'~:::.:_u .l j'",:f-.'U T 11':,,:: t_;f,:r ;,,'j f l :._:,',1 . .
__._._._.__..___.__._._..._..___.___._...____..".....H._.._0__'___
!'JClln(l:i;"-if__ .t. I::, l-"' "j ~.,~ ;, ;:", f:.t:. t ;
" I.iU
!:H~:'J!~EL 21 ~~iORrliJI'JTfl~/\;ERTIC~L}
1. < 50
~. .,:.... '. i-~i..;h :. ~:.(.:r'l "( hL. .,' ".-" i:.:.~';, i
;.'-_1
:.. ~ ~~. u
C.O~'-.]<:. Tj~j',; i" C;' ji;,..jj'..l:::::L. :~:.LCi;:::.t:: '" F ,:::t: T./ f:'- I:::.E T .!
" !~i 1.4 I,:!:) i)
:_' i-.,j L ;-. ~_.; j .;: -j )-- L. in. ~l.! '. 1'00 ~- :.:-' )
:..:'" i3U
h;':j;'".ir,1 I 1"'\_<:' F:{~~ J ::.. T ll~,(i I:~ J~'~' Tuf;; :::
~ U 1. :::;u
... -. .-. -... -. --... -- ,... ...
. ._ __.. .... no... . __ __._.
......----..-.
...............-.
.......-.----.
.... ........-- -..
.-. .- -.. -. .~. ,.
......-..-......
~. "" -.. .... ...
........-.--,..-..
('-L'::;Xj.1~.)L" t- E:f:' Th FLij~'; [;\iF:JF';;(L'-l T I U!-'.J ~
.8H:::;fJ'i I L-' TH ',::~-EE T ;
":L..::l
'~Ll!W :(,!~...Wll)lH~~.~ETJ
:2::i.21
;::'LC1VJ f~:::;:Ef:", ::::,C~i.._i,~Fd::: Ft:~t:T)
I::,}. 2':';'
r'J'{ i:.:hi..-,l_.li...l i... _~...:t.:.I::'i H :" F:::t"::"":.
.- -'
FLC:~ AVERA~E VELOC.ITY\FEE"riSEC.. j
2.j.. 4J.
i..!;') II' Cf-,,:;-'j I. FCl..'L't: j"~1..irt8[f~; .-,
:': ~ _;::: t:> .l
f='F,E::'i'::;UF:l:::
i' i40ME]~TlJ~'1(POUN0Sj
eo(:,~~,'~".J. 4:~:
f':! ~..: E-. f.; ! :': i'-:~ r.:. :..'
VI~L.uCITj 11EAL'~FEE1'j
~~: ~ :j I) ;::
SF'EC:IFIC: EI~E~GY(FEET) -
l-+n 51)::::
F'j""e:::::,~..:; FJ:: TUF: 1'.J t.() cont.ll-I;._~'2
..-.--,--...,-.--.......-...--.....,. ...-...-----.--.-.---.... ---.--..---------------.-.-.-.-------------...-.-.-.'-.--.-...-
..---..----..,.--. ----.--.-----.--.--------....---------...---------.----.--.----------.---------.----
CRITiC.AL"'i)EPTI~ FLOW Il'JFORi1ATIO]~~
CRlrIC.AL FLC!W TOP-0I()-rH(FEET)
.27 ~ '~12
:._. f~ i i \. i.. i'~L " L.i...!~'.,j ;-'';i ..:l::.!':: ..
r:t-.t::.i .1
.J. :2'~-:';. O:~
C~I-rIC~L f~G~J Hy0RAULIC. [)EPr~~\FEEr)
4.6.2
'.. i , 1. . i. ~.
1 '_..'..\'} !.:I'..!:~_hJ'.-i;.::L~ i./r::.U_:\_..t!'j" \;:-:.:::t.-i....'-.::,I::.C.n
.L':':. .;::.1..1
C.RITI(.~i_ [JEPT~i~FEET)
.::;;. :::i /
Cf-;l! '..h.... 1':L;_!~.J ....-:!::::::::..-:--'i~L: ! , ;(71t~.i'..j'1 Ur-'j ',J-"_JUi'iL::':',!
. t~, l'}..:;5. .::: /.
~VERAGE[1 (:RITIC:AL FLOW ~[LCi[:ITY ~jEAi)~FEETj
2u .:d:.2
(i:,:t fJ.:...;',L j:"i..,:.:~'J ':,I:"L.I":.Ir'lJ~. L.i'~Lr~;i:-f'/ l,f:t:.f. i ,J
l!). ::::;7')
~ ~ =::::;: ~ ~ ~::::;;: ~:: ~ ~::: ~: ~ : ~:.: ~;:i=:,::..ul t.~. Or:'t.1 c;n:::::.: :::: ~ ~:::.:::::::;::::: ~:::::::::: ~:::;
1::: j:-'j:'. 1 ;-.j! t. !..!hr~~:.l',j! hE.::~I..;L.; .:-
(,;~"i" ;'::::;':";~-:' j..\[rU~';j\1 t() cc.nc.J.]"'!l.~i=:}
'_OJ
2-\
/
I
: I
I I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
HYDROLOGY
'Z-'?-
E
F
1136
*1
1---
I :
I
,
I
, I
1!l...... I
/,," ~ "... I 1
r~~' "~I
., f>/ I,
I ",'" I
, ~;;
:_~.;.~_:-=~..- - -
, I -
21122 I ~__L~__...
1"..".:.- 2iii2T----n./
1t,~, .' : {!'
~~,~:: ,) J l"'~
\; :, ,.{ ,
,1 ~.j'":" ~
..f;r~.:Jp -- - -!~f ~t- -- - ---- --
h,,'" I-~ :
I ' I
" I
- ____../ I
I
\'.. /~ I
....{ I
., I P CHAN ...
'.
I
,:t,
2
,
,
,
i
I
I
3
~
<
.
R
i
I",
I
I
I
I
~. I ~
:-.-r:=..,----;-----
, "
, :
, ~
I I L... I I '-.--.,
;(- : : I : ~' \15
-____ ..I-, I I I I : I
76p-~~ERSIDECO I 18 S I ~ r ! I
1 SANOIBGOCo--~_ I J:U!. __ J _ DM_--'----~,-Il
i----un u-t-- -----nut------ --~~T-n-PJ~-tu -~~ ------t----- - -- -~ ;-
i~i iSA !DIEGO : : CO: i 6
l' I t I
I I I I
I : I I I
I I I I I I
I I I I I
---------,
,
w
~
4
c
~
;::
c
A
B
c
SEE
MAP
o
E
F
I
I
LOCATION
MAP
I
I
J
~
I
I
I ec
.
I A
I
A
B
I
t
I
I
-
,
-
I
I
I
I
I
I
I
I
I
U"u'la"
RCFcaWCD
HYDROLOGY l'vIANUAL
~
HYDROLOGIC SOILS GROUP MAP
FOR
LEGEND
- SOILS GROUP BOUNOARY
A SOILS GROUP OES'GNATION
.~-~
o FEET ~oo
PECHANGA
1A
PLATE C-1.61
I
I
I Tel LIMITATIONS:
r L 100 I. Maxi",u", l.nQth = 1000' Te
-
1000 90 2. Maxi",u", ar.a = 10 Acru !l
I -
900 80 C
-
. -
I 70 & 6 f
800 _u u
" C
- . ~
700 60 ~ j
- ~ 7 -
I - c: . -
o .. c:
c: N .i 100 Cl
. E
E !SO l5 _ is 8
600 8- - Q.
- 0 0 .2
I, .. i . ~ Cl
> i i . :
-3 ... 9 c
c: 20
!lOO (I) 1 ~ .
1! i 10 10 ~
I ~ ~l. . 'E
- . ~
. t . .
. K .!l.... II
-
400 Cl
... Uncle.....,.. '0
.= 0 0 -
I - Goo. Cower . 2 12 .=
~
" 350 ! 25 1.0
. U"M.Jlla,td ...
... i! .. .2
" Folr c- 1/
I :g 'e .
300 ,UndI.lllpld Cl
- 0 .3 'l. -
] ,5 Poor Co_ =>
.2 .5
(: ..
- - SiftQM Fftl, E
I 0 .u
250 F (1i'4 AcrW .=
- -
..J
- -
~ j Commec cia ~
I - - 7 -
.. e c
c: 200
. - .!
..J c -
. !!
I ~ -
co
25 .
u
- co
0 0
I(EY u
150 9 - .
I ~ L-H-Tc-1<-Tc -
0
i= 30 .
8 E
EXAMPLE: j::
, 7 (J) L "5!SO', ,H =5.0: I( = SinQIe Fa",i1y(l/4 Ac.) 35
Oevelop",,"t I Tc = 12.6 ",in.
I (2) L = 5!SO', H =5.0', I( = Com"'trcial
I 100 40
D_loplllenl', Tc = 9.7 min.
!l
I ..
't Reference: 8ibliQ9raphy item No. 35.
'I f-- ,
RCIFC a WCD TIME OF CONCENTRATION
I HYDROLOGY MANUAL FOR INITIAL SUBAREA zb
,
I"lll .,.ro ,,-..
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
:0:
:::>
:0
:J:
:0:
,W
:0.
IU)
IW
:J:
1<.)
:Z
I
>-
~
U)
Z
W
~
Z
..u
..u
'<t
ILL:
Z
-
<l
10:
~
w
~
~
c
>
~
u
"
w
"
a
w
..
o.
..
oC
ow
-~
...--.
....NO.
.... .
'"''"''"''''''''
.........
."'..'"''''
.... .
NNNNN
.."'!ft.
........'"
.... .
-----
0_"'''''.
......---
"'....."'"
IftN.....
.... .
.....LI"IfOI
f"I.....'"''"'
..Ift..",
.... .
NNNNN
0_"',",.
-----
......
...ltl...
.... .
NNNNN
.....N.
.........
.... .
-----
O...NfI'I..
---......
..Ift__
....._0.
.... .
'"''"''"'P'l....
...,.,..
'"'__0.
. . . . .
NNNN_
.-...,....
-----
........
-......
. . . . .
"'........
.....-.
.........
.... .
-----
___fOI.
-- ---
RCFC I. WCD
HYDROLOGY MANUAL
..
-
..
..
w
..
z
0..
_w
~~
c::o
!l~
0"
..
..
z
..
..
..
"
~
c
..
..
>- oc
u ow
" ->-
W
::0
a
w ..
. ac
o. _w
>-
~..
-w
~~
c::o
!~
0"
o
u
.
o
"
..
~ ac
u aw
" ->-
w
::0
a
w ..
. a.
o. _w
>-
~..
-w .
....
c::o
!~
0"
cc
...-
""
u.
wo
"o.
w_
~...
C
I U
:i
wu
-"
.c
..
i..
..
~ ac
U aw
" ->-
W
::0
..
W ..
. ac
o. _w
>-
I..
-w
~..
c::o
!~
o.
c
"
o
...
c
~
.
..
~ a.
U aw
. ->-
w
"
a
w ..
. a.
o. _w
>-
I..
-w
....
.::0
H
..
o.
_w
>-
.........
....NO.
.... .
NNNN_
"'.......
...IA_
.....,-.
.... .
..11I'\11\..
f"lO.""_
",..",e
.... .
. "''"''"''''
1I'l......
..-..
-"'WlN_
.... .
. ""'"'flit'"'
..."".......
"'IIf'lLl"l__
.... .
NNNNN
III......
..........
....N..
.... ..
.,.....1"'1'"'
..........
..-_.1Ift
.... .
,",""NNN
lIfI.,....
.......
......-
.... .
..........'"
.....-.
..f"I".
.... .
11II........
........
.......N...
N_OOoo.
.... .
NNN"'_
.."'-...
"'.......
.... .
-----
"'......
-----
.."'NN
WI."""'_
.... .
"'''''''''''....
"'WI._WI
--...
. . . . .
","H'"N_
WI......
-----
0"""'.""
. "'''''--
.... .
""N""NN
O",O.N
."''''..
. . . . .
-----
Wl.....OO
-----
.......
.....WI.
.... .
NNN"'AI
.....-.
.........
.... .
-----
11'I......
-----
."".....-
.......""..
. . . . .
.........
........
11'I......
.... .
---...-
.........
-----
N"''''.''''
......""
.... .
-----
.......,..
"'I'\IN__
.... .
-----
ON."".
NNNNN
"'.NO.
.......
.... .
"'NNN""
..."".
........'"
.... .
-----
.N...
""""....NN
........
0......
.... .
....----
.N.""'"
......""'IV_
.... .
-----
.""...
NNNNN
.......
""N_..
.... .
NNNN_
-"'...
.Ift....'"
.... .
----...
.......
......NN
!::f:i:
. . . . .
""flII__'"
.....
""flIIN__
.... .
-----
.N...
....flIINNN
"'N...
I'"'.... .
. . . . .
-----
0......
_00..
.... .
----
.N...
",,,,PI"'''''
ooONWI.
"''''''''_0
.... .
NNNNN
....0
.."'''''''
.... .
-----
ON...
"''''''''f''If''I
......-
...."'''''''
.... .
-----
f"IO."'_
__000
.... .
-----
ON...
fO'lf"l "'fO't PI
...1'.1....
.........
.... .
--..--
...",PI
NN"'__
.... .
-----
011IoI..0.
PllII'IPI...PI
PI... N"" PI
....."''''
. . . . .
-----
0........
_000.
.... .
----
.N...
PllII'If"IPllII'I
....N...N
PlNN__
.... .
-----
"'."'-.
.......
.... .
Otl'lOln.
......W'I.
1\1...0
0......
.... .
N____
....-tI'IO
"'__0.
.... .
---..-
OInOW'lO
..W'lIf'I.
...._"'0
.PlPlNN
. . . . .
-----
.N..O
.00...
.... .
011\011'I0
.."''''.
N.......
."'."''''
.... .
--..--
O......N.
_000..
.... .
--
0"'011'I0
"'''11'I11'I.
.ON.oo
.....PlN...
. . . . .
-----
.....0.
.......
.... .
."'OW'l.
.."'W'I.
...0.....
000.00
.... .
"''''0..
...........
. . . . .
11'I o 1ft OWl
.........
....00-"'-
"'........f"I
. . . . .
-----
VI_.........
.00...
.... .
11'I011'I0'"
.........
Ill'l_....._
__000
.... .
-----
.....""0<...
..........00
.... .
lI'IoM'lO'"
.0........
...Ill'l.....
N___O
.... .
-----
.-."'....
...........
.... .
"'011\011'I
.........
11'I_"''''.
__000
. . . . .
-----
"'0.11\'"
.........
. . . . .
1ft 0 1ft 0 1ft
.........
o
..
.
.
.
w
..
o
~
~
o
..
~
.
.
w
..
o
~
..
o
o
WI
.
.
w
..
o
~
..
o
'"
..
.
.
w
..
o
...
..
o
..
":
.
w
..
o
~
..
STANDARD
INTENSITY - DURATION
CURVES DATA
~
PI AT~ n_. I ,. At.:\
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
,
I
o
1.0 '"
.9
.8
.7
.6
,5
.4
.3
:.2
,)
00
2 3
, ,
, ,
"'~..J\ '
~!.j;,
"', .;"~ri~
, ',-,
;;.;.
J~i
~ ' Ltl!
~~'
, t 1-
~
'~~t1!;: '4J;
I"~
, ,
~,
~
~
, ,
lAND' U
,
I
,
C T ~,
4
5
II Will liT " 1.0
. If. mil fLl1"UlrUt
, 'i t+t ++ H". H-r-
, , , ,- ,.tt't'j ti-i'
,9
6
, ,+t ,'~t
,.+iF -~.'
'1'
.+
i-I
,8
, '
.7
, ,
',1_'
" lL..
lL..
o
z
::::>
a:: .6
lL..
o
.typ
IJ.,IE '
~
~ .5
U
G:
lL..
I.LJ
o
~ .4
.3
RCFC a WCD
HYDROLOGY ~AANUAL
. ;""'., , , , , -, II I i IT r, II I -n-
RUNOFF COEFFICIENT CURVES
SOIL GROUP-B
COVER TYPE-URBAN LANDSCAPING
AMC-O
(RUNOFF INDEX NUMBER 56)
.2
.1
4
<to"
o
RAINFALL .INTENSITY IN INCHES PER HOUR
2
3
5
6
PLATE 0-5.2
I
I
I
I
I
,
I
I
I
;;, I.:,: :,;"~w-: "
~;{~:~ {~1
:'1" -,~- t"./
Ii: ,~ I-J'"r-;- ~
,':'t Ci~y;:~
~~'
, :~~"~'
o
1'.0
'.9
I.B
.7
'.6
t
.., ~
'1'1' I
i I It i j,
II! Ii il t
I:: I
" I
II'
" ,,)
t: I
-.. .'
j i j.j! t
4 ; !.~ 1 T
, .
I. ;
, ,
,
'T' ;
j 11"
, .
, ,
~
'#'
I ~i
I
" I
, ,
,
, I
, ,
!: 1
I,
,
, I
, ,
I
f-:t' : ~~.
fH-!i
, ,
H
I
I
I
I
I
-
I
_oj
I
,
I
.5
'.4
~3
.2
.1
:0
o
1" I
" 1 . . ,. I ' , '- 'i
~ .. : -. ~_:_ ~ j 1. J -: ~ r-~.; f' l ! I 1 I I
,d "~_,'T,.. j ','1"1 lllll
. 't 1 ..~' '-1-' ~ j' I
,,"~~ ...-',-t't" i-t.....c ; '1-1! II ! ,
~~~-"T':iffllTI'1jll !
,." ,'i:t+4"~Tt' :1'1;1;
, ',T-t 't'q
,-=, ' : :; ; ; ~= 111 t Jt+...+ t
: ',..,.........-,-. I ':. +-t ;-1+
2
:3
4
5
6
., 1
"1
h
!lllfE
I! 'I j.
1" i
11 j
'! !
!!!!! j!!!
~ I! j
, I"
j j III I
I.
"1
11111-
!.,! f
.. !;; 1.
,
II! I!
III i I
!: I:
,
I! r!
11 I!
t! II
. ,
I'
- . ; .
. ~ .
" I
.! I
, ,
,
,
,
,
. I i
, ,
- ~ i
I'
i'
,:; ;
,
I f ~ j
l i'"
~"""'.-"'"
~~ t-r-+-;-
..--
..l... ----:-
-<-"
-:-
, ,
, .
toO
.J;
!-! -;-"
t: I t
: '!
:! i'
I'! i
':'" i I
~ I I
"
, ,
, ,
, ,
! 1
I'
, ,
,I
!: ;
, I
I I; I
,
1- !~; -f I ~ :; ; ::::
It -1 f ; I.; '. . .
...., ~i I t ~.t _0... ..t
1~~+ t.i'l~ ~:.: J:
:i~.;''!. ~ J r '1 .-.
-+ . ;_..4 f- ~ ~_l :
It
: ~ : ~
" ,
I ~ ,
,
i j
AND USE OR DEVELOPM NT TYPE
, I
, I
:' lIt I
j I I
.; ,
,
, . ~
. -'f ~-
I..j 1.
, ,
: -H t-i ""r-t ~_.-i.__... - - - -.- -. -..
..-.. '--..,...,...- - .. .-. - -- ....-
~+-H-H.'~-+ J. .-!--J...i-...i..i.~~... __1 -+--1 _ '_
" '~~ 4' :~ -- , 1 lL..:.
-++=;7"' ,..... t . __ .... l.I-
I ~ ' ..l~ I I~-;~ -r 0:
1: .lTr, . ~ I! ;..-r.....~-1.... Z....
! t 1 I r I j 1::>-
I 1 I 'I I j.,: 'Cl::t
I I I I. '+t+f- 'r:::
, -lJ...!-
";, 'O~
, ::tilil . E
:: : ::' I ~~ ,~
:, I U'-
, I , 'U:~
::': :, +~E
I II I U..:...,
; : I ...l...
I j I : r-r .
" ,
: ~
, I
, ,
, ,
,
" ,
, ,
I ,,1
,
, I
" I
I ~ ,
, ,
, '
, I
, ,
, ,
! I I
, ,
I ,
ERCEt'f~A,GF, 9f ,TI;' P;E;~V,IOyS, C '<~~
, ,
, I
, I
I'
,
" ,
,
I I I
, ,
I
! ~
,
" ,
, ,
,
, ,
IIi; I r
'I I I
, "
, ,
, ,
, ,
I: I
, ,
I: I
,
,
, ,
I: ;
, ,
, I ,
I I II!
I I j I I
, I
I ! I
,
, ,
, ,
,
, ,
, !
, ,
,
~ ! ; : ' ,
I I I. ,
, I
: I I I
I I ! I
, "
:, 1 I' I
, ;
i i I ~ I I
'I 1 1 I
, ,
, ,
, , ,
I: I I
I I : I
" I
I I' I I
, ,
I' ; I
, ,
, I
1 I !, !,
, I
" ; ,'r
1 I. 1
RAINFALL
I 2
, , ,
, I
, ,
, '
i :
,; ;
I i I
INTENSITY
3
, ,
, ,
'"
! :
, ,
, ,
, ,
" ,
, ;
, I
" ,
, ,
, ,
'"
, ,
~
..
; I'
,
"
'I:
, ,
RCFC a WCD
HYDROLOGY ;';]ANUAL
1'1 I I I I , " I , I', IT" I I , ,
, ,
"
, ,
RUNOFF COEFFICIENT CURVES
SOIL GROUP-C
COVER TYPE URBAN LANDSCAPING
AMC-II
(RUNOFF INDEX NUMBER 69) t.B
,
.'
.1
" ,
, ,
, ,
,
, ,
t ~ I !
, ,
, ,
IN
INCHES
HOUR
PER
4
5
6
PLATE
0-5.3
I
I
I
I
I
I
I
I
I
I
-
I
I
I
I
I
I
-
I
..._.___0___.._____.0._._.___.___.____0.___________._.-----...-.------.---..---.-------------.-
.J. .... A. ' .. .'_ _~_.l. :'~. ~, ': :;..:-'. :.~. ,,l, -J.; t; ..' . _ _. i -J_' .... '.\. "'" .... .,. . ". :'. :J,.' :!.:' A.". ;,1. '. :"'. :.' '. ."" . _. .': I. . _. ): :', :~: :~. .~: :1.:1
f:!'~T I ',~!j',),:;L t:ETHUL' h{I,'I.~.:l..::L_i_~;;..:j-y' C:CI)1jFUTEF; i::'F;;C~C~F;j~rl bi:.,'=.ED (r)'oJ
L'.jt-.r-,:::.:-.,L_~:i.:. t.,!.,rt..';"j l",' ;- L.ud!..' :..:.),'.i'l f~.::_.:L..
~'.j~'! 'T E:.,.:': j~ UH::.: E.;;;;'..-'/-'; i 1. l.:.!;'.l D 1 ::'7. ~"F: i C f
(. !:;:i.=.f:~:.,~,;J..:!CL.'..'
1978 i'~y-DR[iLG~y j';~l~lJAL
I.. C P 'j ;. ]. '":; n 1:. !. ,) :::: ....: .. -.) ";~ I''; C! \:::, )", :.:: '0':.': .:-.1 L~j"-; :~: ]. j" ~.o:::. '.~~ f" .!. ;- i ~J :: <::1 f .:~ ;...j .::t I '::: ,.::; ,::. ';:.
...."::1.,,, 1. ,....1 )=-"'21;:=;"'.::.e [.1aT:..~~ .j/'!."i;::.':'?::: L_J.C2i''-I:::.'2 ID 1.~:::5Ci
i':~; .~:,.:. ':/-:.:. l ::". ;::;.t"~~F'i:-::tt.~:::\..:l D:/ ~
LOHR + ASSOC.IATES Ii~C.
42513 Rj~(~E PAR~~ DRIVE
TEI1ECULA, CALIFORNIA 9.2590
<"'(';;)t',,;2;; i ')U'.~'/ ,.:,)'t:,"-t:, l:::::6
t. ';:-::l " q ( 'j!J '"1 ) I~~' '.~! ''7} -. Ci ':': '?;! 6
.l:*;!:.!;.~,!::+,~.~**:~*~.~*~~****:~~:.,:~ DESCRIPTION OF STUDY *:~********M***:~:~:~:~:I::I:*****:~
1';!..)I-;:'..'{ H(..r.!\. i"! r="h.::.L.1. ;"1 J. ;"'.li:.::f,:'{ i"1 y I>j:,.:c.!L.CJC:l \' r:"II'~PIL. ""r :::: I :.3
:.k
.~;i 2::::;/ '.:::~!
'7: i. 0 (I 'r'Ef:';:;: ::~. fOr:;J1
..1,"',)2':'::(3:,:.[
:-i:
.~:;J ::.; '7: .f: :1: :~: :7: :;: ).
.~.~.~.k~.~~,.~.~.~**;~;~**.~~:I:~:A:~*:~:i::~~:****:~*:~***:!:*:r:!:;~******~::~:~;~:~.~***:~:~**:~*:~
F ~ i_E '-;;-:'j'-iE.;: i"II.,q-;~j)\' ~ i..'f2:"T
TII"i;~~";~:'.:~Ti~ (::::7 :~;Tj..i[:;''{: J.O:;5::.:~
4/ 1..j./' J. 'j':}5
05ER SPEC.IFIEIJ ~i~['~OLOGj Ai~~ HYDRAULIC: MODEL Ii~FORt1ATIOI~:
L.iS~R SPE(.IFIE[J STi:iRi'l EVEj~f(YEJ~R) = 100.00
'.-.'_..j,. c,. ;iJi'~.rj';U;-'1 elF:';:.. ::.r.i.):~.~,II'.jU~l) -. l.:::;~UU
::::~FE:,~:. I i:'- I i::.i.':' F'J~::F:!.:.E::;',.) T OF (~!:::i2j.(.. I t::i'~T::::~ (f)::::C I 1':r:lL) TCf U'::;E ;::';JF: ~-;-F~; I CT I ei)',j :::,)_oeE -~ ::td
.i. U ; ......i-!I..., .::.! 1"';-':1') ,.;.:,i"- r"!,[ I',JU ,',::. .J. i'~': L\'~:~:..t f '{ " J.1'.~I..:-'I/'" H(.il_~~.i .- .,~:. .:::t:-u
l!J-'fC,~R S1-ijRI.1 6(i-'i'~1:'~lJTE IJ~TErJSiTY~INC.t~/Hl)tjR) = .~~bU
JUI:' ,r':.I,,', _,,1'_'-;":;'; ~i.l.,'!.i.:"~U;~~. l;'~iL:i'L>L r'.{ ',I;"kH/HUUF(:., ._:;..-+::::i~l
1 i) 0.- 'y'f;:{=iF: :~, fC):-.,Ji 1.".:; I:! '-1"1 I i',JUT::: I r.iTEi'~':~ IT\"' ( I NCHiHC)Ur::).- 1.. :300
':.l..'.':'-'E (..r:. i:':-"i:~':.;n;';~'; i:'jff.:j',L:':.if\nl...t)FU:)'jIUl"J CI...iH\./E .:: .,:~':<30::~I3:2
:~LOPE OF lOO-YEAR INrEI~SITY--I~l)RATIOtJ CllRVE = ~54955J6
Cur'iF.'u ! ;.:~:.)..' j::'.:i;i J. ;'~r', .L.t.. I. i'~ r !~.::i'~'::, I T '{ L:f:j f ;.) ~
:~:.TOF;:j"': E\:Ei\IT:= IIJO~ Od J ..HUUF';: II'4TEI'~~7:.IT\.' (INC:}1/HCIUF<) :: 1" :~)CIO(l
.:.'LC:r.E ~>j:':: !.i'n~:'.l'.;._:.i"j'{ i:.!UF(i:..\T.l.i.~;;"i CL::~"/E ::: .,::I'~i,,::t~,
F<CJ=-C,~,:l},1C)) ~1 '{j)RCiL.CiGY J"ii':ir~Uj;L lie " --\/ALUE::::~ U:::;E))
i'.~jj fE: f..:'I::i;"'rF'l...i fE CC;'~FL.U[j'JC E \.} r::': LUi:.::'.;. I:;C CljliD I i'.';i~~ re, F~Ci::'C;~,.~)CD 1-.1\ Df(OL.(:CI'/ j--!j;UUPiL
AI~D IGI~ORE OTHER CONFLlJENCE COl1BII~ATIONS FOR DOWJ~STREA:~l ANALYSES
~.*~~:~,;l:~:**~*:!:~:*i:*~**:!:*******~:*~.**~:.~*~:~:****:~~****~*~;**~:*~:~:~::l:***:l::~*:~*:,:~:**~:****i:
FLOW PROQ~SS FROM NCIDE
100.00 Tel J'-IODE
1. (I (I. (I (I I ~~3 C:C)r..E :=
7
~)'USER SPECIFIED HVDR()LOGY Ii~FORHATIO!'J AT l~ODE<<<(t'
....---------,---...-.-.-.---..--------..--.-.-------------------.--.-.----.----------------------.-.
.__..____.__..__..__....._.___.__.._._.____.__._.0____.___...__________.__________.__._._._.____.__.__._.______._
0SER.-.SPECIFIED VALlJES ARE I~S FOLLOWS:
r c. .. J'rj I j'.;) 21 ~ '7u l:{j-~l I i"J I i'j rj~_::N~':~ I r.{ ( I r.~CH/' HOUE) =:
TOTAL AREA(ACRES>.- 286~OO TOTAL RUI~OFF(CFS) -
.-;, -;."7
..:.. ~ ..:- .'
::::14.00
2S\
~:~*;:..~:'~1;a.$~:~;~*~:***~***1'~:*~:~**~:~~:~:*~1:~:***~;***~:****~*:t*~********~:*~:*~**:I:**~~~*~:*
FLOW PROCESS FROM NODE
100.00 T() i'~IJVE
101.00 IS CODE =: 51
.)COMFUTE TRAPEZOIDAL CHANNEL FLOW<<<<<
):':' :;, :;, TRA'iELTIl"1f:: THliU ';I,.IB{if~E{h'"
1
I:
I~
I;
I
11
I
I
I:
I
I
I
.'
I
Ij
Ii
..,
II
,~J
II
-~
I:
DO~Ji'J'3TRE~M j\_IL'~ ~._~
.;- ,J
CH~rUN~L LEr~GTH rHR~f ~Li2~1~~i~ ~CLi ::: 1450.00
C.HAi~NEL ~LOF'E = .01)63
C HI'-1r.:r'~,:::L E~H~:: E (F"EET...::: '~-t. U U :." F?\C ','C'n = .2 ~ (I (1 U
i1ANNING'S FACTOR = .u~u f1AXIMUM DEPTH(FEET)::: 7.1)0
CHANNEL FLOW -rHRU SLlBAREA(CFS... = 814.00
FLOW VELOCITY(FEETiSECl = 8.57 FLOW DEPTH(FEETI = 5.00
TRAVEL l'I~IE(Nlj'J.) = ~.V~ TC~t1IrJ.) = 24.52
.~;~*$*~:*:~*~~:~**~***:~:~~;~****:~~*~*:~**:~*:~~*:~**:~*~**:~***:~*~:*********:~*:~:~*******~:*
FLOW PROCESS FROr1 NODE
10l.00 Tel i-rODE
c.
101.00 IS C"OI)E :::
~)'ADDITIO:'J OF 3UBAREA 1"0 r1AI~!LIJ~E PEA~ FLOW~~~"
----------------------------------------------------------------------------
----------------------------------------------------------------------------
10(1 YE~R RAII~lFALL I~Jl.EtJSI1.Y(INC.H/HOUF~j :::: 2..l26
:.:.;i:1IL CL{2tS~3IFIC~.~TION I~3 IIB!1
C OI'rii'-!Ei:;:C. I PoL I:<E~/ELCP~!ENT F;U:'~OFF C OEFF' I (,I Er'.JT =: . ::::"70::::\
SUBAREA AREA (ACRES) - .00 SUBAREA RUNOFFCCFS) - aGO
r-01Ai_ AREA(ACRES) = 286.00 TOTAL RUNOF'F(CFS) = 814.00
i'C(11II~) = 24.52
~:~*:~**:~:~*:!::~*******~:~*~:**~**:~*:~*****:~:~**********:~*******:~**********:~***:~*****
FL(~t:J PROCESS FF~O~1 NODE
iU1.00 TO r.:OVE:
1 (I 1 . I) I) I ti CClr~E ::::
':)j-L~ESI3N~T[ IrJDEPEj'JDE~r STF~EAM FOR CO~JFLUENCE<<~'~.~.
..----------------------------------------------------------------------------
----------------------,-------------------------------------------------------
l'OT~L ~JUMBER Of SlREA~!S = L
CO:~FL_UENCE VALUES USED FOR IrJDEPENDENT S'fREAM 1 ARE:
l'l~!E I~F CON(E~JTRA1IOtJ(rllN~) = 24.52
RAIJ~FALL INTENSITY(ItJCH/HR) = 2.13
T'OT~L STREArl AREA(ACRES) = ~~b.UO
PEAK FLOW RA'fE(CFS) AT C:O!~FLUENCE = 814.00
~*:!:*~:~::!:1::l:*1:~:~;**~**~:**~~:~:**~********~********~:**~:***~1:1:~*~:~:**~:~:~i:**~:**i~~:**~:**
FLOW PROCESS FRO~l NODE
101.00 T'O rJCIDE
on}
"
1 (I 1 . 0 I) I::':; C:CiDE =
. . >).)lJSER SF'ECIFIED HYDROLOGY INFORMATION AT NODE<<<~/
----------------------------------------------------------------------------
----------------------------------------------------------------------------
()SER.-SPECIFIED VALUES ARE AS FOLLOWS:
rCININI = 22.90 RAIN INTENSITY(INCHiH~JR) = 2.21
rOTAL AREA(ACRESI = 188.00 TOTAL RUNOFF(CFSl = 712.00
~~:~~~:,:!~.~~~:I:~:~'~~~i::l:*:':~:~*:!~,~*******~:****:~:~******~:***~::~************~:~:**1:**:~**:~~~~~~~***
FLOW PR()CESS FROJ1 NODE
101.00 Tel NCIDE
101.00 IS (:ODE =
1
'~>>>DESIGNATE INDEPENDENT STREAM FOR DJNFLUENCE<<<<<
" . . .> i~~I'~I.I CC)/"'"!F>UTE \/(.;F< I iJU:~i CC]\JFLUEi".~C:ED :::;TREf-";11 VALUE~:.~< " ,
----------------------------------------------------------------------------
------------------------------------------------------------------------------
rUT{~IL. 1'~Ur_tBEF< erF' :.:;TF~Et:~l'l'!:::;, = ......
CONFLLJENCE VALUES USED FOR II~DEPENDENT STREAM 2 ARE:
"rIME OF CONCENTRATIOtJ(MIN.) = 22.90
RAINFALL INTENSITYCINCHiHRI = 2.21
TOTAL STREAM AREACACRES) = 188.00
PEAK FLOW RATEiCFS) AT CONFLUENCE = 712.00
** CONFLUENCE DA1A **
STREAM RUNOFF Te
r-JUl'"IBEF;; (CFS) (/,;{IN. )
1 814.00 24.52
4 712.00 22.90
30
I NTH,S I TY
( INCHiHOUm
2.126
2.207
AREA
iACRE)
2:::::6.00
1::::3.00
?
I
I I'
I'
I
I:
1\
I
I:
Ii
,
I:
I
I
I
I;
I
I
I
I
I
l:"-i )";-!1:-:, (C~:F'IJTC:h P'RC;:1f~;h:-l~ T;" -,I,. .<... 1~:,::El' ,. ,--I.':.::-Ll'
;:i!",.J -;-i-t~~ ~.CF--;=:,~,:t'.JCD FCi;:;'r:~ULr:40F FLrifE L..-- ~,_, If=:FAUL;- )A'_U~::. THI:~; ;=CiF~f"1ULH
:,.-iii....L l".CIT I'~EC:::~'~~~r;:lLY r;:i:::0UL T .ii'-J THE /!H.l; li-!Ut'.1 \i:~iLI_;E i.~iF- t'>Ej~t: '-':L..CI~'J~
.~.~;~M.':~::!'*~:**;:::~*'~:~:~*:~***~::~'~;~:~*~:'~*:~;~*.~***:~:~:*:~.~*:~:~:~:l'.~~:;!'*;':
.........,..........
.;....-..-.........?..'
......,..
";'.::'.::4::!.:::.::'::'.:
..... ..
F:H 1 r~r:-'::'ILL I t"J"TEN::::, I r-'f f:.';NI.1 T I rolE
CONFLUENCE FORI~ULA USED FOR
C)F CClftCEjJTr~:ATICr-.1 ;:=(PIT 10
2 ~3TFEAi~-1'3.
,.!. ''',r",-".
,',- r'c.j-,r...
FLOW RAT"[ l"ABLE ~*
F:UNDFF , c
I 1',rTEN':;: I TY
\ I i'~C:I'1/1'10UR:>
:~:.:; T ):;:E r;'J~"'j
i'~Ur,It::c.~;:
((,1=":=,)
1m..;.)
2:2. 'J(I
:;;::4.. ~~i2
2~ 126
1.
147:2.20
:2.207
J~~':;"). 74
COl~PUTED C:O~FLUENCE
PE?~K F'LOW RAT"E,CF"Sj
TOTAL AREA~ACRES) =
ESTIMA"l-ES ARE AS FOLLO~JS:
= 1499.74 TciMIN.l =
474..00
24. :::i2
l::~~:r*:~:~:~**~~*:~~::~:~**************:~***:~~**********:~****:~************:~****:~*:~:~*~.
f:L(IW PROCESS FRO~I NODE
101.00 TO NODE
102.00 IS (ODE =
-,
...:.;
.-------.----------.-----------------------------------------------------------
. ':-",;.>>C.iJf'1PUJE FIPEFLOvJ rnA\lELTIl"1E Ti-lnU ~'=;UBAREA<'::', .
-")USI~~ COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)(((('
----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 114.0 INCH PIPE IS 86.7 INCHES
PlPEFLOW VELOCl1'Y(FEET/SEC~) ::: 25.9
lJPS'fREAJ1 NODE ELEVATION::: L140.40
~JWN5TREAM N(~E ELEVATION = 1133.40
FLOWLEJ~G'l-H(FEET)::: 500.00 MANNING'S N::: .013
Et,:;'ll f-!A TEI:' I::' I FE I:I I AI'1!ETEr: ( I NC:H) ::: 114. U (I r'~Ur-18EF: OF F' I F'E:~i::: 1
F)IPEFLOW T~iRll SUBAREA (CFS) ::: 1499.'74
r'F~AVEl., 'TlfrE(MIN.)::: .~~ l'CCNlrJ.) = 24.84
*:~*:~*:~:~**~:*~:~:~**********:~****:~~:~***~******:~*:~********,~******:~*:~*:~*~*;~*:~***;t*
FI_C::JJ F"r;:OCE'~'~i FROt:! I'JODE
102.0U TD i',.tOI::E
102.00 IS CODE :::
1
----------------------------------------------------------------------------
,--"DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((<
,--,--,------------------------------------------------------------------------
-,.,--.------------------------------------------------------------------------
1'0 '1'(:1., I'JUl"IBEH OF ~::;TF?Efil'1S:;: .:::
COJ'~FLUEJ~CE \/ALUE:~.; U'::iED FCJF~ I i'~[)EF'ENDEI'~T :3TFEAr-1 1 Pd::;:E:
T I trlE UF' CCl"',/CcJ-j'T'RAT HJi'J Urn t"J.) -= 24. :~~4
RAINFALL INTENSITYIINCH/HRl = 2.11
'ro-rHL. STREAM AREA\ACRES) ::: 474.00
PEAK FLOW RATE(CFS) AT CONFLUENCE::: 1499.74
*~:'!:~:*~i:~*i:***********~:~:******1:~::~*~:*:~*:}:*~:*~:**i;'~~:~:~:***~:*~***1:**1:*******~****:~*
FLOW F'ROCESS FROM NODE
103.00 TO NDL:>E
104.00 IS CODE = 21
.._-,--,-----------------------------------------------------------------------'
~j)))RATI(~AL METHOD INITIAL SUBAREA ANALYSIS(<
----------------------------------------------------------------------------~
----------------------------------------------------------------------------
ASS~4ED INITIAL SUBAREA UNIFORM
DEVELOPMENT IS SINGLE FAMILY (1/4 ACREl
rc = K*[(LENGTH**3l/(ELEVATION CHANGEl]**.2
INITIAL SUBAREA FLOW-LENGTH = 800.00
U!;-:'~:::.;TPEAI'\1 ELE\/AT ION::: 1150.40
DOWNSTREAM ELEVATI(~ = 1145.20
ELEVATION DIFFERENCE = 5.20
1'(: = .39:3~[( 800.00~:~;3)/( 5.20)]**.2::: 15.581
100 YEAR RAINFALL INTENSITViINCH/HOUR) = 2.727
':<OIL, CLA':;'<3IFICATION IS "B"
SINGLE-FAMILYll/4 ACRE LOT) RUNOFF COEFFICIENT = .7751
~\
.3
I
I
I
I
i 1
I.
I.
1
I
I
I
I
I
1
I
I
I
-
I
""'.,.- ,", -,-.. ,.- '--
~:;~:!:'~1:;'.'!::'!_-~ ~:*~:'-~~
'.' :': ':.': :': '!: :J: '.: .:_: :!: -': ~:
': !: ":co}: -!:* ',': -!::.'::;.
"""'<""":' "
... ..... -.
':.J;:~::!:::;'~:~:~:::;~~~:~.'~'l::'.,'-':;':":";:::":
FLOW PROSE5S FROM NO~E
3. 0,,;.,.. U (I TO r~O[.IE
I. IJ :::1. (1 U T :,:, 1::tJDE c::
",
----------------------- .-------.--------.-.------.-------.--.---..-...
...~.~..;,>COMPUTE PIPEFLOW 'TRAVEL1-IME "l+HRU SUBAREA({('
.. j'U8I~JG COj~PU.rER-ES1.1j1ATEI) PIPESIZE (tJOrJ-PRESSURE FLOW)<<<<~'
============================================================================
DEPTH OF F'LOW IrJ 24.0 IrJCH PIPE IS 18.3 I;'JCHES
PIPEFLOW VELOCI"rV(FEET/SEC.) = 6.b
UF'~3Tr-';:EP,!'-1 l"--!CIDE ELE\'!Arl()r-~ = 114:5.20
D!J~NSTREAM NODE ELEVA.fION = 1139.90
FLO~LENG1.H(F~EET) = 700.00 MAr~rJlrJG'S rJ - .U13
E~:;.;T I i'lATEi) F' I FE D I AJ""'1ETEF: ( I r~C:H) = ~~4. (I (I rJU!':1BER 0:::. F' I PE~3 = 1
PIPEFLOW THRU SU8t~REA(CF-S) - 17..JJ
TRAVEL TIME(MIN.j = 1.73 TC(MIN.) = 17.31
~1;1:~::~~:~~:*:!:~::~1:i:~*:~**~:*:~~:*:~*~:~:*1:*.~*i:*:~~:~:.~*:~*:~*i::~**1;i:***:~****~:*~:*:I;i;***~:~:1::!:*1:*:~*
FLOW PR()[.ESS FROM NODE
105.00 TO r.JfJDE
105.00 IS CODE =
;:::
----...---.----.---------------------------------------------.-----.--.-----------.-
-)'))-ADD['fION OF SUBAREA TO MAINLINE PEAK FLOW<<<<(
----------------------------------------------------------------------------
--,--------------------------------------------------------------------------
lOC) YEAR RAINFALL Ii.JTENSITY(II~CH/HOUR) = 2.574
~~.Cjil... CLA:.~,:..:llF=.lCATIUi'.J I~:.:, 'lell
SINGLE..FAl'lILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8150
SLfBAREA ~~F~EA((~CRES) = 7.70 SUBAREA RL!NOFF(CFSj =
TOTAL AREA~ACRES) = 15.90 l"OTAL RUNOFF(CFS) =
TC (;-j i I'-J > .- 17.. .:;;.i.
16. 1~5
:33. .49
;~**~:********;~*:~:t*~:*****:~*******~:*****:~;~**********:~;~***************;~:!::~*:~**:~**
F.L~Clt'J F'r;:C'C.E~::'!=,; FF';:Uj'.-! l'~O[::t::
J.o~:::,.oo TO ~JOVE
105.00 IS COI;E =
1
-------------_._---------,----------------------------------------------------
~~>>];ESIGN~.rE I:>JDEPE~JDErJT STREA~I FOF~ CONFLUENCE(<~~
~.'~.~:~'AND COJ~PUTE VARIOUS CONFLUENCED STREAM VALUES<{{{~-
----------------------------------------------------------------------------
----------------------------------------------------------------------------
fOTAL NU:~BER OF STREAMS = 2
CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE:
1.I~E OF CONCENTRATIOJ~(MIN.) - 17.31
RAINFALL INTENSITY(INCH/HRl = 2.57
.fOTAL STREAM AREA(ACRES) = 15.90
PEAK FLOW RA-r.E(C.FS> A-r. CONFLUENCE = 33..49
el: * C:()~'~FLUEr~C:E OATPi ;}::+:
STREAM RUNOFF
NUMBER (CFSI
.1.4':;+':1'.74
33.49
Tc:
(l'lHJ.)
;;::4. '0'4
17.31
IrnEI'ISIT'i
( HKH/HOUlil
;;::'Ul
2. '574
PiF:E(~
(ACRE)
474.00
l~S.'}O
:1:.'::~:!.:~*:!:~;.I:*:I;*:!:*:~**~:**.,:*i:**1:******1:WAR~JING*:~**~::~****:~*:~*****:~:~****~:****:~:;}:**i:
IN l-HIS COMPU.TER PROGRAM, THE CONFLUENCE VALUE USED IS BASED
O:'J T~iE F~CF~CtWCD FORMULA OF PLA1.E D-l ~~s DEFAULT VALUE. THIS FORMULA
WILL NOT NECESSARILY RESULT IN T~E MAXIMUM VALUE OF PEAK FLOW.
~:*.I::~*~::~:*:!:*:~**:l::~~:****~:*i:i:******i:****:~**:~~:***:I;:~i:*****1:i:***i;**i:*****;}:**:~*:!:~;*~:
RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO
CONFLUENCE FORMULA USED FC~ ~ STREAMS.
:.}::{; F'EAK
'0,IRU11'1
1'4UI'1BEF<
1
FLOvJ RATE
f<UNOFF
(CFSI
lCI7:::.49
1527.20
~
TABLE **
Tc
(MIN. )
17.31
24. :34
HHENSIT'f
( INCH/HOURI
2. ~i74
4
2.111
,~
4
I
I ~;~~:~*;~******;r*****~:;~****:~*:~*:~:~:~*:~*:~:~:~*:r**:~***:r*:~:~************~***:~**~:!::r**:~~:t
3
I
I
I
,
I
I
I
I
I
I
,
-
I
,
I
I
,
-
I
'._ ,_, _, ..'. '-.I.. ,_ -_'" ,-'__ ._. ;"_. i..... '.B _ , ~, "
PE~~~ FLOW RA"fE((.FSJ -
'r-O'I~L AF~EA(~(RESj =
.t::i2}~..;;:U
11..:.\!:1...... ..
.:1 ;;::':;'. -~, i"f
FLOW PROCESS FROM NODE
lO~;.OO TO r~Of:E
106.00 IS COLE =
--.--------------------------------
--------------------------------------------
>(:O~IPU1.E PIPEFLOW 1'F~AVELrINE THRU SL!PAREA~~',
'~.}>:~.>USING COrlPUTER.-ESTItlATED PIPESIZE (NON-PRESSURE FLOW)(<
~=;~=========================================================================
DEPT~~ OF FLOW Il~ 114.0 ItJCH PIPE IS 88.1 Il~CHES
Plf~EFI_GW VELOCI-r'Y(F~EET/SEC.) = 26.0
llPSTREAM NODE Ei_EVATION;;:: 1133.40
DC:~.\JrJ:::\TF~E;~:\r-i r'~DI::E: i::L_E\j~'ITIOI'.1 =: 11~"2f::,~ ..:}l)
i::.-!....Oi.'JLEj'~C-.jTH (FEET);: 50 (I. 00 j-'lr'::jNN I r'Jell t:..; N;;:: . I) 1:3
F'::::iT I :':!f;~ i E:.i) F' I PE t.!.1. ~:d"1E'rEJ:;~ ( I i"~CH) ;;:: 114. U (I
PIPEFLCiW 'T'~fRU SUBAREA([:FS);;:: 1527.20
l'RAVEL. T'INE(r'jltJ~) = .J~ l'C(~IIrJ.) = 25.16
F'IF'E:::, .:;
!"'.4ur"I.BER CF
1
;~***~:~:~:~:~*~.~~****;~***********:~**********************:~*********:~*****~:*~:****;~*
F':LJ.:tlIJ
PROI:ESS FROrl NOI~E
J06.UU TO ~,10[:'E
106.00 IS CODE ;;::
,:;,
----.-,---------------..---- --------------------------------------------------
'"" > > >AN,): rIen CF::,UBAF:EA TO I'!AI .,IL I t'JE FEPJ:: FLCVJ<: <: <: ,/"
.-.---------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAI~IFALL IN-rE~JSITY(IrJC'H/HOUR) =
::::iOIL CLA'~~'3IFICATlor~ 1:3 IIC'I
CO~:t!ERC"IAL L'EVELOp~jErJ.r RUNOF'F
SUBAREA AREA(ACRES) ~ .00
TOTAL AF(EA (ACF:E:3) ,- 4:::9.90
TCUHNi = ,2~;.16
2.096
COEFFICIENT = .~~lIU
SUBAREA RUNOFF(CFS)::: .00
TOTAL RU~JOFF(CFS) ;;:: 1527.20
**~:***:~*:*****:~:~*:~*****:~**~********************:~***************:~****:~*:~******
F:'LCl:J Fr~:OCE~'::';:::; F"hCl'"t r'.~UDE
lO,~,. 00 TO NOVE
106.00 IS 8JDE =
J
.----------------------.---------------------------------------------------"---
~:)[)ESIGrJATE I~~0EF)ErJDE~JT S'T'REArl FOR (ONFLUENC:E~
---.-------------------------------------------------------------------------
----------------------------------------------------------------------------
T(fr{~~L rJUi"IBEF;~ OF :.~~ n~E(:~r-!S.";; .i
CONFLUENC:E VALUES lJSED FOR li'JDEPENDENT
TIt-iE e:F CDI\'CEr~Tf;:ATICil'HriIIN.) ::: 2~)" 16
RAI~=ALL INTENSITY(INCH/HRI = 2.10
TOTAL STREAr1 AREA(ACRES) = 489.90
F'EAK FLOW RATE(CFS) AT CONFLUENCE =
::;:.;TREAl'.'1
1 AF~:E:'
1 ~:;27 .20
*~:*~:*~:.~~:~:~:*:~**~:~:~*~*t*~:*******1:~****~***~:*:~**~:1::~****~:***.!:*~:***$*:~**:~***~:****
FLOW PROCESS FROM NODE
1 07 ~ 00 TO NOI>E
108.00 IS CODE =
21
---------.------------------------------------.----'-------.-----,'.--.-----.-------.
>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<:'
----------------------------------------------------------------------------.
-----------------------------------------------------------------------------
ASSUMED INITIAL SUBAREA UNIFORM
DEVELOPMENT IS SINGLE FAMILY (1/4 AC~EI
TC = K*[(LE~~TH**31/(ELEVATIC~ CHANGEI]**.2
InITIAL SUBAREA FLOW-LEnGTH = 700.00
UFSTREAM ELEVATI~~ = 1145.10
DOWNSTREAM ELEVATION = 1139.00
ELEVATION DIFFERENCE = 6.10
TC = .393*[( 700.00**3)/( 6.10)]i:1:.2 = 13.930
100 YEAR RAINFALL INTENSITYIINCH/HOURI = 2.901
30IL C:LA€;:3IFIC:ATIOrJ I::i liB"
SINGLE-FAMILYI1/4 ACRE COTI RUNOFF COEFFICIENT = .7806
SUBAREA RUNOFF (CFS) = 16.53
TOTAL AREA I ACRE:3 I = 7.30
?~
16.5:.(
5
TOTAL RUNOFF1CFSl =
I ____________________________________________________________,_______
I
I
I
I
I
I
I
I
I
I
I
,
I
I
I
.
I
I
.!.~:~:':1:-:::l:~;:l;-!:~.'..I;::*.::-!.:~:,:~':.~;~.!:~:~:!:-~:~;~:.~);:.:-:;.~*i
':,;, ,.
;: :': -~; :.\; ::., .!: 7- '
~'L_Ci~; Pi~OC:ESS FRO~ r~OC'E
.i.09~OU
Ci')L.it:.
i. U::;:. u:) TO tJCiDE
.. ~j,),COMPUTE F'IPEFLOW 1"RAVELTIt1E THRU SlIBAREA<..
. . >>U:;;I;'JG CfJr-IFUTEf,-.'[:':ITIi-iPiTED FIF'E::.IZE: (1'~C~l,~-.pr;;E:3~::;UF;;E r~'LO\;J) -;"/
-..--.--------------------------------------------------------------------------
----------------------------------------------------------------------------
DEP-r'H OF FLOW IrJ 24.(1 INCH PIPE IS 16.1 INCtrES
PIPEFLOW VELOCITY(FEET/SEC.) = 7.4
L!PS1REAM NO~E ELEVA"i"IOI'J = l139.00
DOWNSTREAM rJODE ELEVA'l-rON = l1J2.90
FLOl~LENG'I'~i(FEET') = ~40.00 ~lArJrJl~~G'~ N
i~STIJ4ATED PIPE DIAI1ETER(INCH) = 24.00
~~IF'EFLOW THRU SUBAREA(CFS) = 16.~;J
l"RAVEL 'fli1E(NIN.) = 1.44 l"C(MIN.) = L5.37
= .013
1\~U/'t1BEF:
OF
PIF'E:3 -
1
.~~:;!:*.!:~~:*~:1:*~:***~:1:i:*~:~:********~:********1:~:***************1:~:1::~***~:***~:**~:****~::~
FLiJ~ PROCESS FF~OM NODE
10'9.00 TO NODE
109.00 IS CODE =
.::'
----------------------------------------------------------------------------
.,.~).>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<' .
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAII~FALL II~TENSITY(INCH/HOUR) = 2.748
:::'OIL CLH:3::;IF.IC~1TIC~J 1::;, ;iCIl
SINGLE.-FAMILY(1/4 AC:RE LO'f> RUNOFF COEFFICIENT = .81'~5
SUBAREA AREA(ACRES) = 7.00 SUBAREA RU~JCFF(CFS) =
l-OTAL AREA(ACRES) - 14.30 '-OTAL RUrJOFF(CFS) =
1 C (1111'j) = l"',.::7
1::;.7t....,
.-':~L. 2'9
*:!::~**:~******:~**:~*:~*:!:****:~*:~****:~:~********************:~*****:~****:~:t*:~*******w
r~'I_C~!J F'F~:OCE;.:;:3 FF;;Cil"j I'JUVE
lO':J.OU TO NOVE
.109. UO 1:;:-; COVE :;:;
:I.
.------------------------------------------------.-----------------------
'~)>~.-]:~ESiGNA1.E INDEPErJDErJT STREA~I FOR CONFLUEr~(::E~(~'.
-', ":. ":."> >AND COI';1PUTE \/AF.< I OU~; COr'JFLUENC:ED (;TREA/~1 \/r:~LUES-< <: <: < <:
----------------------------------------------------------------------------
----------------------------------------------------------------------------
-rOl"AL j~UMBER OF 51'REAMS = 2
C(:~~FLUEN(:.E VALl!ES USED FOR INDEPEtJDEN1'
'fIME OF CONCEN1-RATION(MIN.):;:; 15.37
RAINFALL INTENSITY(INCH/HR) = 2.75
TOTAL STREAM AREA(ACRES) = 14.30
f~EAK FLOW RAfE(C'FS) AT CO~IFLUEtJCE :;:;
:s T'F:E~I:\-/
2 AF:E,
:32.2';1
** CONFLUENCE DATA **
STREAM F~UNOFF
i'JUJ':1BEF: (CF=3)
Tc
(mN.)
I i'HEtE. I Ty
( INCH/HOUI:;:)
2.096
2.74:3
t=iREA
(ACRE)
4:::9.90
14.30
:I.
1~;27. 2U
:::2.29
2~5. 16
15.37
.:..
**:~~:~:~*:~*~:********~:i:~:~:**********~:WARNING***~:t~:*~:~:~*********i::~*:~**:~~:*~:***~:~:
IN THIS DJMPUTER PROGRAM, THE CONFLUENCE VALUE USED IS BASED
rn~ THE RCFC&WCD FORMULA OF PLATE 0-1 AS DEFAULT VALUE. THIS FORMULA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
~*:!:~:~:$~:~:**~:*~:*~:*******:~****:~****~~:*:~**~*:~1:~:*~:***~:~:************~:*********~:*~:
RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO
CONFLUENCE FORMULA USED FOR 2 STREAMS.
:~.: * F'EAK
=3TF:EAj"/
FLO~J R,HE
F:UI'-~OFF
(CFS)
:?'\
TABLE **
fc
(~lIN. )
15_.:37
:25.16
nnENS ITY
( INCH/HOUf-;:)
2.74::::
NUI~BER
I
965.:3:3
2.096
1551. :;::)
GCtiYlP'UTED CONFLUENCE ESTI~'IATES ARE AS FOLLO~JS:
G
I
I
I
I
I
I
I
I
I
I
I
I
I
I
,
I
I
I
I
..:~:~:t':;~.~;:..:::~;.:.. ~,~:~,~:r~:~:~'::;~,~:~~:~*~:':::::~**:~:l:~:~."-~;~:~.~.~*.:':":~:~;!:~:::*,:*:I:;~;~:~*~*':::'
'_' '. '" ~'. '." '._ _',' \. 1. t.. <,
.. .... .. ..... ...
..... .. -.
FLOW PROCESS f~RO~1 ~JODE
lO'9~ OO'j"U r..!OI.r::.
110R U(I 1-:; C'OVE =
-.-----------------------------------.----------------------------------------
", "':.".:- >- .>CC'r-IF'U T'E F' I F'EFLCI~;J TRP,\."EL'r.r r..-rE THhU :::"U.E:(iEEA< -:: .: "
'~.'>)>).IJSING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLO~)<{~'
----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 114.0 INCH PIPE IS 89.6 rl~CHES
PIPEFLOW IJELOCITY,FEE'f/SEC.J = ~b.li
LiPSTI~EA!1 NOI)E ELEVA'frON =: L126.40
r:~c~,n~:3TF:EAI'"1 j'.~()I.tE ELE"jATICr-j = 11 i.'~=t. 70
FLOWLEI~GTH(FEE'r) =: 480.00 MAt~NINGIS N - .013
E::-::,""1 I;' ~(~'l E;:V P.1 PC: L.' I (\r~:ETEE ( I i'~C'H':' = 11."+" (I U ;'..!ur;BEF~ CF f) I F'E~:::; =: .1.
PIPEFLO~ 'r'i~RU SUBAREA(CFSj - 1551.83
ff:;i:..)\/f'::L Ti:""IE(r'IIi'J..) =-:: .-3.L TC(;"IIr.j.) - 215.47
~::~*~:**~:******:~::y**~:r:y****:~***********~:*~:****************:!:**:~:~~:**:~*:~*:t~*:~*****
F:LO:~ PROC'ESS FRO~i ~tODE
L i U. U U TO i)ODE
'.::'
.I. .1.0. 00 .I.~; CIJVE =
"'~>.;'ADDI-rION OF SUBAREA TO MAIl~LINE PEAk FLOW~(':'~
-.---------------------------------------------------------------------------
--,--------------------------------------------------------------------------
1 (1) 'y'E(..~R RAlj'"-,~Fi:.1L.L. Ij'JTENtiIT\( (It)C:/1/HOUF;) =:
:~3CiIL C:LA':i\~.;IFIC~")TIOr~ IS HC:1I
COM~ERCIAL ~EVELOP~iErJl' RUNOF.F
SlJBAREA AREA(ACRES) = .00
ro-rAL ~REA(ACRES) = 504.2U
TC:(j""'rIN) := 2::~.47
2.0:;::::.;::
COEFFICIE~r = .8799
SLIBAREA RUNOFF (CFS) = .uu
l'OTAL RUNOFF (C'FS) = 1551.83
**~*:~~':~*:~:~:~***~,~****:~:~***********:~***************:~*********:~****:~********:~:~*
FLOW'PF~OCESS FRG~I r~ODE
11 (I . 0 (I TO ~40r::E
11 U . 0 (I I :~i COVE =
.I.
':, ".:-trE:'~~ I Cd",l,;TEI:'JDt:~FEI'.IDE~JT ::'lTF:EAM FOr< CCJtJFLUENC.E< .:., .;., ..'
--.--------------------------------------------------------------------------
----------------------------------------------------------------------------
r(jlAL ~~UMBEF~ OF srF~EA~!S = ~
C.Oi~FLlJEI~CE VALUES USED FOR II~DEF'ENDEN.r STREAl1 1 ARE:
T'I~IE OF CON(.EN'r.RATIG~J(~!IN.) = 25..47
RAI)~~ALL INTEI~SITY(II~(:H/HR) = _.u~
rOfAL STREAM AREA(AC'RES) = 504.20
PEAK FLOW RATE(CFS) AT CONFLUENCE = 1551.83
~::~*~:~:i::~~:~:~::~:~~:~:**~::t.~.~~:~:,~:~~:**~*~:~::I:**~$**~::~**:I:;~*.~:;~*:~:~*;l:*~:'~**:t;~**~::~;~~:;~**~:~:a:i:~:**~:
FLOW PROCESS FRrn1 NODE
1.1.2.00 IS CODE = 21
1. 11.00 TO rmDE
">}}>RATIC~AL METHOD INITIAL SUBAREA ANALVSIS((
----------------------------------------------------------------------------
----------------------------------------------------------------------------
ASSUMED INITIAL SUBAREA UNI8JRM
DEvELOP~tE~JT IS SINGLE FAMILY (1/4 ACRE)
TC -.K~:[(LEI~GTH**3)/(ELEVATION CHAl~GE)]**.2
l~jITIAL SUBAREA FLOW-LENG1'H = 550.00
UF':3TF:E~lf7'i ELEVAT Ior~ =: 1133.20
~JWNSTREAM ELEVATIO~ = 1128.20
ELEVATION DIFFERENCE = 5.00
rc = .393*[( 550.001:*3)/( 5.00)]**.2 = 12.542
1.00 YEAR RAINFALL INTENSITYIINCH/HOURI = 3.073
~:::;OIL CLA:3SIF'ICATIOrJ IS Ilell
SINGLE-FAMILY(1/4 ACRE LOTI RUNOFF COEFFICIENT = .~~bb
SUBAREA RUNOFFICFSI = .1.7.02
TOTAL AREAIACRESI = 6.70 TOTAL RUNOFFICFSI = 17.02
~
7
I
II
I:
I
t
1\
I;
Ii
"I
l'
j
11
,1
Ii
J
I:
Ii
1\
11
1\
I:
I:
,
I:
'.. '._",-,. '-'."-' -':._'- .;
'..'.t..",-
" .'. -'-. .... ..
:,','C.iJM~2IJT~ FiPEFLGW 1'R~~VELr[ME Ti~RI_1 SliB~REA~,~
~":lJSING CC~:F~liTE~"~Sl'I~!~TE[) F~iPESIlE (N(ii'J-F~F~ES~~;~E F'LC~j'
============================================================================
0E?1"H OF FLOW IrJ ~4.0 INCH r~lPE IS 17.3 IN('~iES
PIPEFLOW VELOCITY(FEE1/SEC.) = 7.0
UF':::nT~;EAi"'1 NOVe: EL[''/AT I lJl'J = 112::;:.2: 0
C<il,lJ!'.J::.;;TF;EP1]-"1 ~.JClnE EI._E'....PiT ION:;:; 112:3 ~20
FLC~~JLEl.J(;~ T'H (F:EET > = t,IJ o. I) I) ,-~t-\l"'il'j 1 i'._:i~; I :::' I'J - . (I 1 :.~i
~STII\1A'rED PIPE DIAJ1ETER(INCH) :;:; 24.00 NUMBER O~ PIPES = 1
F~IPE~LOW -rHf~U 3LIBAREA(('FS):;:; 17.02
TF~A\T~I_ TItlE (nli'~.).;: 1.4.2 rc u"lIr\I.)::: ).3.97
1:~*~:~:~:!:~~.1:*~*~:*~:1:*1:*~*~:*~::~****~*~**~:'~***~***~:*****~:*";:~;~*~:****~;*~:~:*:::~:1:~::!:*:\:~::~:I:
FLOW PROC:ESS FROM NODE
113.00 IS CODE :::
':0
113.00 TO fKI[)E
:. ':- '>:> >;::IDD I T I ON OF :3UBAr~:EA TO fo1A I !'~L I NE FEAI::: FLOl:J <: -::" -:., .:.,....
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL INTENSITY(INCH/HO~~l = 2~896
~'-OIL CLA:=>:::iIFIGATIOI~ 1::::; ilL-I'
SINGLE'-FAMILY(1/4 ACRE LOT) RL!NOFF COEFFICIEI~T ::: .d~~~
2LiBAREA AREA(AC'RESJ::: 6.30 SUBAREA RUNOFF(CFSJ::: 15.02
TOTAL AREA (ACRES) .;: 13.00 l"OTAL RUNOFFCCFS) = 32.03
"I'C (I'-J I ~.~;, :: 1 :~i. .~~!.~~
*~*:~:A:*~::K**:~****:~**************************:~******************:~**************
F'lGW l~f~OI:ESS F'RON j"JOCE
113.0u ro ~~lJDE
113. UO I:~; corE =
'~'>>)DESIGr~ATE IrJDEPEtJDErJT ST"F~EAM FOR CONFLUENCE<~~"-
,.'~."~';.>AND COMPUTE VARIO~S CONFLUEI~CED STREAM VALUES<<<<:<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
TO-TAL NUMBER OF STREAMS = L
CCrt',:FL_UENCE "'/{1LUES U~:E:D FC'F\: r r'JUEPEt"J1>Et"-IT
T I hE (:F COr-JCEI'JTRAT I cn'~ (t,') I f".J.)::: 1:3. ':=t7
RAli'JFALL INTEj'JSI1'Y(IN(H/~1F~) = ~o~li
TOTAL STREAJ1 AREA(ACRES) = 13.00
F'EAk FLOW RA1'E(CFS) A'r CONFLUENCE =
",;rHEAI,!
.2 AF;:E ~
- -. ..-
:_-::':::.1):3
~:* (:O!'JFLUENCE DATA **
S'j"REAtl RUNOFF
NUMBER (CFSl
1 ::;::i1 . ;:r:;
32.0:3
HJTE~ 61 r(
( INCH/HOUP'
:2.0::::2
(-.~F~E::;
Tc
(mN.'
(ACREl
!504.20
1:3.00
2:::io 4"/
1::<.97
.2 . :=:'~i,::.
:~*:f:~:~:**1:***~:~:*~:*~~**************i:WARNING**~:***i:****~:i:~**~*******~:*****~:*1:*
1. N TH T :=; COMPUTER F'ROCiRAr'l, rHE Cor,FLU!:::NCE VALUE U::iEI> 1'3 Bi4SED
OtJ T~'1E RCFC&WCD FORMULA OF PLA1-E D-1 AS DEFAULT VALUE. THIS FOR~!ULA
WILL NOT NECESSARILY RESULT IN THE MAXIM~~ VALUE OF PEAK FLOW.
~:*~::!:*~:~:*:!:**~:~~~:***************~:*~:i:*i:**~:******~**~:*~:**1:****~:********1:**~:***
RAINFALL INTENSITY AND TIME OF OJNCENTRATION RATIO
CONFLUENCE FORMULA USED FOR ,STREAMS.
""" F'EAI<
t'Tf\EAI"J
I',UJ'lBER
1
FUY,J RATE
F~Ul"-lOFF'
(CFS)
TABLE **
Tc:
(11 [1',. )
n.'3?
I mENS I TV
( INCH/HOUF:l
2. :::9E.
:3::;:2. ':+:::.~
~
1574.G5
2.0G2
:2~3047
COMPUTED CONFLUEN('E
PEAK FLOW RATEICFS)
TOTAL AREAIACRESI =
E'~'T HlinES AHE
= 1574. ::;:5
~i17.20
AS; FOLLOl;J~3:
Tc (11IN.) =
2=:;.47
8
I
I
I
I
I
I
I
I
1;***i:~~:~~:!:**~;*:~:!:*'!::~:~*:I:*'~**~:********:~***1;*~:*********~:t*'~**~:;~'I;~:*~:*****~:**1;****
I
I
I
I
I
I
I
I
I
I
I
",".""',"!,' \...
..,..-.,..,....,
. .'.; ': .~. .;: . ': . '< :~: . ~': . ': ;1
.:: .~: .;-: c':
:~.l,..~_~:I::~:~:~:\::~;!.:~:~,~.~:~.~:::.r.~.~.:
':" .~: :~: ;of: .f; ." .!.:
::: .;: ;!.: .f: :f: :t" ,: .;" ;~: .:: ::: ::: _~; .:
,:;" LCl:J
t~'RI~'C E::>:=-
r"f:;:c:r'l :'.10i--~-~
.i 1.=;. 00 ro r'~O[:"L
I .t.::. 0(1 I':':, CCif:E:. ::;;
.1 U
:: >tc'!A 1 N-:.;,TF:EAM ;~!Ev10~:"i COP 1 ED OrJTC) r:-!Et-'~I":::R y' 8;1(.)/':..
,1+ 1
============================================================================
:~*~~:**~~:**1::!:*~**~:**t:!;~;~:.~*~:*****~:~.****.~i:*~:******~:~**~:**~:*~:i:~:~:*1:1:1:~*i:*~:~:ti:*~:~:~;
FLCIW PROC:ESS FROM NODE
200.00 TO NODE
201.00 IS CODE =
~: 1
"'~})'.~'RA'rLONAL METHOD INITIAL SUBAREA ANALYSIS~~~
.:.; .;
-----------------------------------------------------------------------------
----------------------------------------------------------------------------
ASSUMED Ii~I'rIAL SUBAREA U~IFORM
[::CVELOF'rc~Ei".n I b '~l I t"4GLE. F'Ar j I L y" < 1 /.4 ;C;C'RE)
Te = V*[(LEI~G'rH~*~3)/(ELEVATION CHANGE)]**~2
IrJI'l'lAL SUBAREA FLOW-LErJG1-H = 1000.00
UPSTREAM ELEVA'rIOj~ = 1151.50
I:r()~.';I'.J:~:\ rl':;:E?~i'~1 ELE:.\/A T I O~'J:-; 114~:~. ;::i(l
ELEVATION DIFFERENCE = 6.00
rc = ~.::"9:3'~:[1, lUOO.UO*'!:.:ij/( 6~OO)]:~::~:...::: =
100 YEAR RAINFALL INTENSITY(II~CH/HOUR) = 2.574
::::()IL CL.Atit\IFICATIUt'J I::::" I'.bll
SINGLE-FAMILY(1/4 ACRE LOr) RUNOFF COEFFICIEI~T =
~LiBAREA RUNOFF'\CFS! = 19~82
'fOTAL A~EA(ACRES} ~ 10.00
1.7.311.
.769:3
TOTAL RUNOFF(CFS) =
1':1. ::::2
FLOW F'ROCESS FRO:" rJODE
20 j. 00 TO ~JODE
202.00 IS CODE =
:3
'~~))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<(",
'~)I_;'~, I r4Gc CC:[,iPUTER..Et'T I i1ATE[:' F'I PEt: I ZE (~K:N-PRE'3'3URE FLm'J) < <' ,,"....
._---------------------------------------------------------------------------
----------------------------------------------------------------------------
DEI:)rf~ OF FLOW IrJ 24~O IrJCH PIPE IS 15.1 It~C~1ES
i~IPEFLOW VELOCITY(FEET/SEC.) = 9.5
lIF's'r'f~EAM NODE ELEVA']"IOrJ = 1141.80
DOWNSTREAr1 NODE ELEVA'frON = 11:33.90
FLG:~LENG"I-H(FEET) = 480.00 MANr~IrJGIS N
ESTIJ1ATED PIPE DIAMETER(INCH) = 24.00
PIPEFLOW THRU SUBAREA((FS~ = 19~82
TRAVEL TIMEIMIN.1 = .84 TCCMIN.) = 18.15
= .01 :::.:
NUMBER OF PIPES =
1
.~~:**:~*:~:~*:~*~:*~:*i:**i:i:*:~*:~*:~::~****~:*~******~:i::~:~****1:***:~***~:*:~:~*:l:*~:**'I:**.~*~::~:***
FLCH-~ 'FHCICE:3~"3 FR0J'11 NODE
:202. (I I) TO r~ODE
202.00 1:3 CODE =
'~~'~'~>ADDITION OF SUBAREA TO MAIl~LII~E PEAK FLOW(('
. .~ .
.----------------------------------------------------------------------------
-----------------------------_._----------------------------------------------
100 YEAR RAINFALL INTENSITYCINCH/HOL~) =
:~::ij I 1_ CLi:4,:;t:i I F I CAT I ON I~; II B II
COMMERCIAL DEVELOF~ENT RUNCFF
3UBAREA AF~EA(ACRES) = .00
fOTAL AREA(ACRES) - 10.00
Ie UHI'j) = 1'::.15
2~5U:3
COEFFICIENT = .8735
SUBAREA RUrJOFF(CFS} =
TOTAL RL~OFF(CFS) =
.00
1 'J. ',,'2
***************************:~:~:~**********************:~****:~*****:~************
~
FLOW PROCESS FROM NODE
202.00 TO rKiVE
202.00 I~; CODE =
1
)))>)DESIGNATE INVEPENDENT STREAM FOR CONFLUENCE<<<<<
----------------------------------------------------------------------------
--.--------------------------------------------------------------------------
TOTAL NurlBER OF :::nHEAi'IS = "'
CONFI.:.UENCE VALUES U'3EI) FOR I NVEF'ENVENT
fIl'IE OF' CONC'::i'JTRATION(t.H~j.) = Hi.1S
STREAM
1 ARE:
<!>
I
I
:EA~:, ~LIJW RAi~~CFS' ~j L.ONF'LUE~CE =
i. ':? :_::2
".~.:':~::!:*1:~:;~'I::~~:;~~:!::~*:!:.t~:~:**~;*~**:~~;~*:l:**.!:~;.~~;~::~**~:**;~~:.~;~~:~.t'l.i:***~;~:*~:'l;*~:~,":~:'!:'!.;.~::':~:
~'i_O:1 PROCESS FROM N00E
204.00 IS CODE = 21
21)J~ 00 TO rJ\:iDE
'~'~j';';'RA1-ION~~ i~~THOD l!~ITIAL SUBAREA A!~ALYSIS<~('~ .
----------------------------------------------------------------------------
~ ----------------------------------------------------------------------------
I
I
I
I
ASSLINED II~ITI~L SliBAREA UNIFORl1
[:E~/EL.CF'i-~IErJT 1";:" ::,ll\aLE F.~\r..jlL..,' \ i.fAt j':.'iC:;;-<E:)
>;: L .,Lt::).,~C:j.-j-H:::;:;:~:> / <ELE\i~;TI1.~i)'-~ C.;"li:ll'~C~E)] :'~:*..2
j"i".:: .;: j
I ,no f" J t::'iL_ :;::l...it.'i.::F<EPI FLt'::ll)-'Lt}-!Gi ft-l :::;
t.-,OCi u C (!
0PS~'~EAM ELE\:Al-IU~J ;;:;
1,[44. :30
i.<~;:-,_:; r=, r:~;:Ef~\r-! [L..':.. '....A T J l~:~) :::;
1140 n :::::l~i
..:j." 00
::::L_E\':(~jTION CIi:-FEni':;:Er.JCE ;;:;
i--,:. " ,~':-:,':~i ": i'- ,::,0 (I. 0 I) ,J. '7',:\) ,/ t, -+ n U U':- ] ,~; '~:" ~:::::; 1 :=: n ::;: 17
10lJ YEA? RAlj~FALL I!~l'Ej~SITV(ItJCH/HOUR} = 2.913
:::CiJ,L CLA:3:.::,lFICt=-'~'IIO)") l~, liB!'
?li'JS~E-FAMILY(lj4 AC:RE
SU8~REA Rl~OfF'(CFS) -
fO'TAL ~?E~(~CRE3) ::
LOT) RUNOFF COEFF'ICIENT ;;:; ~7810
I:..:;";:.;':.::; .
r.:,. 1 (I
rOTA~ RU~JOFF(CFS) ;;:;
13 ~ :=;'::
:~~:~:~:~.~*~~:~~:~~~~:~.'~:~:**~:~~~:t**~:~:*~:.~:~:~:t~****:~t***~:~:*1'*~:1:1:i:~1:1:~:***'f:*:~~:*~:~:~:1.***'~*~:
FLOW F'RiJC:ESS FROM tJODE
204.00 TO i""40DE
203.00 1::3 CODE ;;:;
I ---------------------0-------------------------------------------------------
----------------------------------------------------------------------------
.
'. ": >>COr1PI.JTE F' I F'E:~FI_Ci\";J TR{~'\,'EL T 11':11.::: THr-i:U ~::,U8{~REA< -:: -;" ':" -="
',':'~'USING C.Orlf~lt.rER-ESTIMATED PIPESIZE (NON-PRESSUF~E FLOW)~',.'
(I
I
I.EF'fH OF r-7LO;) If', 24.0 INCH PIPE. 1',,; 17.0 IrKHES
PIPEFLOW VELOCI'fV(FEET/SEC.) = 5.8
IjF~Sl'F~E~~l NODE ELEVATIOrJ = 1140~80
I>OWNS'fREAM NODE ELEVATI01~ = 1137.60
FL_OW~ENGTH{FEEr) = 550.00 ~IANrJING'S j'J
ESTI~ATED PIPE DIAMETER(INCHl = 24.00
F' I FEFLO~!.l -rHF:U :~iUB{';HEA (C F'~:3).- !:3. e~:;
-rF<PI'-iEL r I l"iE di! Ii'J. J = i . 57 TC (r.B J'~.) = 1~.5. :]':.t
= .Ol:=~
NUMBER OF PIPES =
1
I'
.~~:\:!:~:**~~:~:~:**:~*~:*~:~:*~;:~*~****~**~:*:~:~*~:*~:~:~~:*:~*~:**~:1;*~:~:***1:*:~***~****1:~:*~:**:!:*~:
FLOW PROC:ESS FROM NODE
20~5. 00 TO rJCIDE
:;:
205.00 IS CODE =
I --~-:~:;~~;;;;~-;;-;~;;;~;-;;-~;~~~;~~-;~;~-;~;~~~--------------------------
I
I
---.-------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAF, RAINFALL HHENSITY(II',CH/HOUR) = 2.746
':'OIL CLA'C"::>1FICATIClrl IS "8"
SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIEN'r = .7757
SUBAREA AREAIACRESl = 6.10 SUBAREA Rl~OFF(CFS) = 13.00
fOTAL AREAIACRESI = 12.20 TOTAL RUNOFF (CFS) = 26.88
'rC(MI~J) = 1~;.39
II'
g ~:~*************:~*****:~:~**********~***:~**********************************:~***
g
I
I
FLOW PR~:ESS FROM NODE
20~5. 00 TO NODE
1
20~j. 00 IS COI::E =
.----------------------.-------------------------------------------------------
>>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE{{{<<
~)>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES{{{{{
----------------------------------------------------------------------------.
--.--------------------------------------------------------------------------
TOTAL I',UMBER OF ::;:TREM1"::' = ""
CONFLUENCE V,iLUES USEr:, FOF( ItJDEPE~jf)ErH '::;TF':EAn 2 ARE,
TIME OF OJNCENTRATION(MIN.) = 15.39
RAINFALL rrHEr.j",;IT'I I INCH/HRI = 2.75
TOTAL :::;T'REA~1 AREA (ACRE'" I = 12.20
F'EfW 'FLO~J RATE(CFSi AT CONFLUENCE = 26.:::::;::
~
\0
I
I
i I
I
I
,
I
I
I
II
,
I
I
I
I
I
I
I
I
i-~LI>jr:'~;:F:
r<~_'l'K'Ff'
(CF--.:;>
If-I j Ei'.:-:',l i "(
< J: r.j'~:H/H:=)iJ;:;:;'
~. :~:O::::
:2. 7 ~t6
;-', F;:E f=i
I., H'::F~E >
1 U. (I U
12.2U
i (.
I; (-1 I r~. .!
1
1 ':'f. ;::;..;;:
.t :=:;. .1 '~,
.26. ::;::3
1 :~~. ,~: '~=t
*:~~:~:*~*i;*i:~:*~:*~:i:***~:~:i:~:*~:*****~:1:*WARrJING~:**i:***~:**~'~**~:~:~**1:**:~*~*~:1:1:*~:*~:
IN T;~IS C:OMPUTER PROGRAM~ THE CONFLUENCE VALUE USED IS BASED
j)~J 'rHE RC'F(.&t~CI) FORMULA OF PLA1"E D-l AS DEFAUL"r VAL~E. THIS FORMULA
~~ILL NOlO NECESSARILY RESULT IN THE MAXIMUM VALUE OF F'EAK FLOW.
~~:~:~~~~:i;******~:***i::~~!~****~;*~:*~::~**~:**~:****~:~:***~:**********~:*~:**~:***i:**:~**~:
~AINFALL INTENSI'fV AND 'TIME OF CONCEN1-RATION RATIO
,,,::'ot !F'LUt::i'-~CE r CF:MULA U'3EI-' FOF~ 2 :::;TnE~"'.;r1:;;,.
.~:~ PEAK FLO~J RA'fE TABLE **
::~TF';:E::hn
!'.~ lJ t"1 fi E F~
F:unCFF
(CF:~.;)
Tc:
I i-~ fEJ'J:3 I TV
( Ir~C:H/HOUF:)
':::.7.,16
I: 1'-'1 I I'J. )
...:;..::;" .i::,7
1 ~j a ::";':;1
44.36
1.:J. 1 ~j
2. ::::~O:3
(O~~IF'UT~D (-O~:F'LltErJ(~. ES1-INAT'f~S ~F~E
PEAK FLOW RATE(CFS) = 43.67
T()T;:~L 1~;.j:;:E~:::; \l~C.F:E~::';)'- 2~~.. 20
J:.i~~ FOLLetl!]::;;::
Tc.:nIN.:> =
15. :],}
~:~*~~*~***~:**:~:~:~***:~*:~:~*****:~*****:~:~********:~****:~*******:~:~**:~*****#**:~****~
F<LUi:J F'F<UCE:;;:l:-;:' r-RCtj"i ;',~Oj>f.
2(1:::1. UU T1J 1'~t.:)l::E
20;~..UI) I!:~ COI::[ ::::
.j
------------------------------------------------------------------------.-----
:.~,;~~COMPUTE PIPEFLOW '1.F~AVELTI~1E THRU SUBAREA<(~~~
". .... ":. >U'~i I 1'~G CO~1F'UrEJ::;;-EST I n~)TED F' I F'E:3 I ZE (I'.JOrJ-F'RE~3SUr;:E FLO~~:) <:
============================================================================
DEPTH OF FLm'J I i'J :30. 0 .[ ;'JCH PIPE I'3 21.7 I ;'K:HE'':,
F~IPEFLOW VELC'CI1'YCFEET/SEC.) = 11.5
U:~G'rREAM NODE ELEVATION = 1133.90
~OWNSTREAM r~O['E ELEVAT'IO~J = 1127.30
FLO~ILE1~GTH(FEE'r) = 400.00 MANNINQtS N = .013
t~:::-iTI;*!f:-'TEr) F'IF'E I:JIPir"IETE~;: (IrJCH) = :30.00 NUr-JBEH UF PIF'E~'::~ = :t
PIPEFLOW 'fHRU SUBAREA (CFS) - 43.67
TRAVEL .r'I~tE(~IIN.j = .58 l<C(MlrJ.j = 15.97
:~:~*;~****:~******:~************:~******************:~******:~**:~**:~*;~***********:~*
FLOW PROC'ESS FROj~1 ~JODE
201:'.. UO TO NOVE
206.00 IS CODE =
1
-*-----------------------------------------------------------------------------
,j)j)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((
----------------------------------------------------------------------------
----------------------------------------------------------------------------
'fOTAL ~~UNDER OF STREA~IS = ~
C~~FLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE:
lINE OF~ C'ONCENTRATION(t'IIN.) = 15.97
RAINFALL INTENSITY(INCH/HRl = ~.b~
1-0"I'AL S'rREA~1 AREA(ACRES) = 22.20
FEl4K r-LOt-'-J RATE (CF::;::-;) AT CCINFLUEi'.JCE = 43.67
~:$**:~a;******:~:~***~:******:~**:~****~:*:~*********~:**a:*:~*******:~***~:*~:~:*****~:*~:~:*~:
FLCl~.J F'ROCE:3'3 FROM NODE
207.00 TO rJO[)E
208.0U IS CODE = 21
-.--------------------------------------------------------------------------.------
)RATIONAL nET HOD INITIAL SUBAREA ANALYSIS(((((
=====:::==========:=======================================================::::::::===
ASSUMED INITIAL SUBAREA l~IFORM
DEVELOPMENT IS SINGLE FAMILY (1/4 ACREl
TC = K*[(LENGTH.*3l/(EL~VATION CHANGEl]**.2
INITIAL SUBAREA FLOW-LENGTH = 7UU.UU
IIPSTRFAM FLE\/ATION = 1139.00
?<\
/I
I
I
I
I
I
I
I
I"
I
I
I
I
,
I
I
I
I
I
I
fl., '0:. 'JU"O(I*:~::3)./- 4.:=,O)J'~_:~:..~' =
~Ol) (eHK FHirJFALL iNTErJSITY(INC:H!HO~IR) =
'.~-ClIL :~LI';:'~::'-:'~',IF'l(ATIOr~ I::':. "8"
:.::' II'K1LE "~FAJ,;lIL'l'; 1/4 t~C~:E LOT) RUNOFF CD!:.:F;:'- I CI Ei"rr =
SUBAREA RUNOFFICFS) = 13.23
T'O"TAL AREACACRES) = 6.10
, ,
1. -;.. 7.':, ~:'
-;''='1
. .....
7'}72
rO"l"AL RUNOFF'(CFS) ~
13.23
::'~*'!::I:*:~~::~::~*:!:*~:~*'I:**~*:~:k*****:~*:~****~:***~:****~:*****1:*:!;~;****:~*~:~:**:~:~*:1::~*:~~:~:**~:
fLOW I~ROCESS FRCiM r~ODE
20:=:.00 TO NODE
:..)
209.00 IS CODE =
'~)>C~~PUTE PIPEFLOW TRAVELTIME THRU SUBAREA({{' '
',:-.: ,:'>>U:::,i~'~G CCr;-'IF'UTEF:'-'E::::,rli'i~ATED F'IPE::SI2:E (r.~Or~-F'PE:::::='UFE FLC'~,J) .:.....
-.---------------------------------------------------------------------------
----------------------------------------------------------------------------
DEF~l'H O~ FLOW 1:;1 24.0 IrJCH PIPE IS 16.5 l~~C'tiES
PIFEFLOW VELOCITVCFEET/SEC.j = ~.,
~PS-'rREA~1 NODE ELE'JATION::: 1.l:J4.70
DOWNS'fREAM NODE ELEVATION::: 1131.00
FLOWLEtJGT'H{FEET)::: 650.00 MA~JtJINGI5 tJ
ESTIMATED PIPE DIAMETERCINCH) = 24.00
F> I PEFLOl!J THF:U :=-;UE~AHEA (CF::;:;)::: 1 :=i. 2:=\
TRAVEL TIME(MIN.) = 1.88 TCCMIN.) = 16.82
::: .01:3
j'.JUJ':1BER
(iF
F'I F'ES-
1
.::~:*i:~:*~~:**~::k~:~:~***~:~:****~:~:*:~~:~:~:**~:***~:*~:1:*~:******~:~i:1:*~:*i:****i:*~:~::~****~:**~:
FLOW PROCESS FROM NODE
20'~~.OO I~, conE ::::
,=,
'-'
209.00 TO NODE
~~>>)'AD[)ITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<~'
----------------------------------------------------------------------------
-----------------------------------------------------------------------------
100 YEAR RAIM=ALL INTENSITYIINCH/HOUR) = 2.615
:'~'OIL. CLA~':3:SIFIC?;TIC:rJ I:::; IIBII
SINGLE-FAMILYl1/4 ACRE LOT) RUNOFF COEFFICIENT = .7713
:~~:UPp.F";:EA riF:EA (ACRE;;:.]:;:; r..:,. 1 U SUBAREA F~:UNCFF (CF~;) =
TOTAL AREA(ACRES) - 12.20 TOTAL RUNOFF(CFS) =
r c ( 1'1 ]: i'j ) = 1 6. :::':.2
12. :JO
25.53
~:~~*~:*****~:**:~:~*~::~q::!:*:~*******************:~*******:~:~************:~************
FL.O~J PF~OCESS FF~OM NODE
2U9.0U TO ~KH.'E
1
20'~':J.UU I~~\ C.CIVE =
)~')>:~'DESIGNA'l'E ItJDEPENDENT STREAtl FOF~ CCtNFLUEN(E~ . .
.,'.'. . )'Al'JD COMPUTE VARIOUS CONFLUENCED STREAM VALLIES<<~".
----------------------------------------------------------------------------
----------------------------------------------------------------------------
TOTAL NUMBER OF STREAMS = ~
CONFLUENCE VALUES USED FOR INDEPENDENT
TIME ~= CONCENTRATIONCMIN.) = 16.82
RAINFALL INTENSITY(INCH/~mj = 2.61
TOTAL STREAM AREACACRES) = 12.20
PEA~~ FLUW RATE(CFS) AT CONFLUENCE =
::,Tr~EAi'1
2 ARE,
..',e:' J:::'.-,
";;'._1. ,_1.";'\
:~* CONFLUENCE DATA **
STREA~I RUrJOFF
NUl1BER ~CFS)
j 4::).67
fc
Ulm.)
l~i. 'j7
lb. :::::.:::
I r-nEi',I:;:i I TY
( INCH/HOUR)
2.691
2.615
f4F:EA
(ACI":E)
22.20
12.20
''':0
,~
25.5:3
*****~:*:~*~:**:~*~:******************WARNING******i:*~:*********:~*****~:*********
IN THIS COMPUTER PROGRAM, THE CONFLUENCE VALUE USED IS BASED
ON THE RCFC&WCD FORMULA OF PLATE D-1 AS DEFAULT VALUE. THIS FORMULA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
~******:~~:******~:*~:***************************************************~:**~:~:
~
RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO
CorJFLUENCE FOF:i'IULA USEI' FOF< ~ :;HFiEAi"IS.
12
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
:.~.: -j F;~~,~;J ;
l i.j I c..:. ~ .; :::. ,'- j "
'" r ;"~Cri H'_~iU;-:;;)
;'..j _i!"lF.::t::6:
l ; i j'~. ;
" 1_ ~- -:', ;
1
r::o? :~.l
J. :::i. '.:~"?
1 Co. ;:':::2
.2.6:d
67. -)"7
~::. c...t:5
[(iMPUTEI) CO~IFLl!EN(.E
PEAK FLOW RATE(C:FS)
rOT"AL A~EA(ACRES) =
E'~,TIr'!A rES hf":E
= 67. '3'1
::1.4.40
Pr::; FCLLO(l):;;;:
Tc (I'-lIN.) =
1:5. '97
*~;~*:~~~~:***:~~*****************;~*;~~:***************:~******************~:~:~**;~*:!:
FLOW PRO('ESS FROM NODE
20':1. U I) TO ~~CIVE.
"-;
:2 1 (I . U U l'';:i CCI[.:E =
...___.____..___0_____________________________________----------------------------
."':.?>_~C.OMPUTE PiPEFLOW T"RAVELTlrtE "rHRU SlIBAREA<~;'
.... .;.u~: I !"~G COl"IF'UTER'-E:;::.;T I j-:,Cj TEi) PIPE::::.; I ZE (NCil\~'-F'RE3:::.URE F'LO:;J)-:':
----------------------------------------------------------------------------
----------------------------------------------------------------------------
f)EPTH OF FLOW IN 42.0 INCH PIPE IS 29.2 INCHES
F)IF)EFLOW VELOCI"r'Y(FEET/SEC.) = 9.5
UPS1-l~EAM NODE ELEVATIOi~:::: 112'7.30
L:oWrJSI'REA~1 tJODE ELEI/AT'ION = :[124.20
FLOWLEj'JGTH(FEET) = 420.00 MANNII~G'S N:::: .013
f~s'r'IMATED PIPE DIA~IETER~INCH) = 42.0U NU~IBER OF PIPES:::: 1
PIF'EFLOW THRU SUBAREA(CFS) - 67.91
r'f-\A'./EL" TI;-'iE(!'-ilr~~):::: . ;'...:. rC:(I"'iIN..}:::: 16.70
~**.~;~;~********:~********:~****:~****;~*:~****************************************
FLOW PROCESS FF~orl ~~ODE
.2 l (I. 0 U TO (~ODE
210.(11) J~::; CCI!':E ::::
,-',
'.:.
:'}:~::'>ADDITIO;J OF SUBAREA 1'0 ~:AINL.1NE PEAK F~LOW<<~"
---.--.------------------------------------------------------------------------
--.---------------------------------------------------------------------------
i OiJ \'EP.F: F:Alt~F"~~LL IrJTc:J"'J~=;I"I-.y (Ij.'-~CH/tiOUF;:) :::: 2.625
:~:;OIL CLA';:iSIFICATIDN I~3 !'BIt
C c:'-!r'!EF;~C I PiL DE\iELOFt"!El'./T fiUr.,ICrFT CUEFF.l C I Et'fT :::: . ::::74:3
Sl!BAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) - .00
TOTAL AREA(ACRES):::: 34.40 l'OTAL RU~rOFF(CFS):::: 67.91
TC(l"iI!';) = i6.'?0
~:*~::~;~*********:~~;~****~*:~*:~********:~*:~*********~*****:~*********:~*************
FLOW f~ROCESS FROM NODE
210.CiO TO NODE
210.0U r:::, corE =
1
,??>jDESIGNAIE INDEPENDENT STREAM FOR CONFLUENCE<><,<
.._---------------------------------------------------------------------------
-----------------------------------------.-----------------------------------
Tel"j ~iL rIUI':"IBEf< UF-' :3 THEP;M::\:::: .....
C:Ci~~F'LUENCE VALUES U~;ED FOF: I 1'~DEF'EI'./DENT z~ TREAr.1 1 AF:E:
TIME OF O~~ENTRATIONCNIN.) = 16.'?Ci
RAINFALL INTENSITYCI!';CH/HR) = ~.o~
DalAL STREAM AREACACRESI = 34.4Ci
PEAK FLOW RATECCFSI AT CONFLUENCE = 67.91
~:**:1:~$*~:*:~~:~**~:*~:~:****~:*****~*~~:******:~*~~:i:1:**~:****~::~~:*~:*****~:~:*~:*~******:~:1:~:
FLOW PROCESS FROM NODE
211.00 TO NODE
212.00 IS CODE = 21
, ' >>RATIONAL METHOD INITIAL SUBAREA ANALYSIS( "
----------------------------------------------------------------------------
----------------------------------------------------------------------------
ASSUMED INITIAL SUBAREA UNIFORM
DEVELOPMENT IS SINGLE FAMILY CI/4 ACRE)
TC ~ f'::*[(LENGTH**31/(ELEVATION CHANC,E)]**.2
IrJITIAL SUBAREA FLOW-LENG1"H:::: 800.00
UPSTREAM ELEVATION = i133.10
DOWNSTREAM ELEVATION = 1128.40
ELEVATION OIFFERENCE = 4.70
A\,
13
I
I
I
I
II
I
I
I
I
I
I
I
I
I
I
I
I
I
I
-::'C1IL CLA:::,:::',IFlj.~-AT1C:.! .,!. ~
SI1~GLE-F~MiLf\1!4 AC:RE
3L![ARE~ F~I_'r~IJF~{CF'S} =
l-OTAL AREA (AC,RES) -
L01-; ~UNOFF COEF~ICIErJT = .7741
Le.74
6.10 TOTAL RUNOFF (CFS) =
12. /4
**:~*~:*;~~:~:~'l:~***~:****~;**:~*~:****~:~i:~:*****~*:~:*~~~~:******~:i:**~:*i:~:~:1:i:*:~:I:~:**~::~*:I:*~;~:
FLOW F'ROCESS FROM NODE
212.00 TCJ NOttE
213.0U 1:3 CODE '-'=
",
--------------------------------------------------------.--------------------.
'~>CDMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA:{{"
.. ~'.~LISI~JG CC'MPU1.EF~-ESTI~iATEl) PIPESI2E (NO~J-PRESSURE F'LCW)~
============================================================================
~EJ~l-ii OF FL('W IN 24.0 ItJCH PIF:'[ IS 16.5 I~:C~iES
PIPEFLOW VELGCITY(FEET/SEC.):::: 3.5
UPSfREAt1 NODE ~LEVATICN:::: 1128~40
DOWI~STREA]1 I'J8DE ELEVA'fION = 1124.20
FLI:I~~LErJGTH~FEE-r-j:::: 800.00 NANNlrJG'S j"J - .013
E:::;Tlr1P,TED FIFE DIAJ""'lETER (Il-.JCH) -. :2"L 00 1'~UIYlBER OF F-IF'E::i:::: 1
PIREFLOW THRU SUPAREAICFSl = 12.74
'IT,AVEL"nr,lE(f'lH,..>= 2.41 TCII"lIN..> = 1:3.31
'~**~;~'~:~;~;~~**:l:~;*~$***;I:*$***~:*~;*;~~;******~;*~****$**1;*****~;**~;:~*~:~:~:*~;**~:*~::1;***~:~:
FLOW PROCESS FROM NODE
21:3.00 TO NDDE
21:3.00 I:3 CODE ::::
'::.
----...----.-------..-----------------------------------------------.----.-----.--.-
)'ADDI']"ION OF SUBAREA 'ro MAINLINE PEAK FLOW<(<..
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAI~=ALL INTENSITYIINCH/HOURI = 2.496
:::'OIL (LA::;:;:':::;IF I C HT 1 Oi'~ .f~~': IJ E:"
SINGLE-FAMILY~1/4 AC:RE LO'f> RUNOFF COEFFICIENT = .7669
SlIBARE~ AREA(ACRES) = 6~10 SUBAREA RU~JC'FF(('FS) ::::
rOTAL AREA(ACRES) = 12.20 TOTAL RUNOFF(CFS) ::::
're < r-iIi'.!:! = la. ,:;1
1.1.6:,,:
24.41
***~:*;~*~-*.~*:~*~:~~:~*****~::~:!:~::~********;~*:~:~:~*~****;~**********:~*********:~:~*~:****~
FLOW PROCESS FROM NODL
:21::-:.00 TO NOl:,E
213.00 IS CODE ::::
1
-----------------------------------------------------------------------------
'. )~>I;ESIGNArE I~JDEPE:~DENT STF~EA~1 FOR CCI~JFLlrEN(:E<{.~ _
. . )'AI~D CONPU'fE VARIOUS CONFLUENCED STREAM VALUES<<<<<
-------------------------------.---------------------------------------------
----------------------------------------------------------------------------
TO'fAl_ NUMBER OF S'fREAMS = ~
CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE.
TIME OF CO~~('EN.rRATION(11IN.) = 18.~31
R~~IrJF'ALL IN'Y'ErJSITY(INCH/HR) = 2.50
T01"AL STREA!~ AREA(ACRES):::: 12.20
PEAK FLOW R~l'E(CFS) A'T CONFLUENC'E = 24.41
$$ CONFLUENCE DATA **
Sf REAM RUNOFF
NUMBER (CFS)
rr J T Ei" Ed 1'/
( INCH/Hour,:)
AF~EA
(ACRE)
J4.40
12.20
Ta::
lr1 rr,. .>
lb.70
1:,,:.31
2.496
J
{:;,7. ':;t 1
:2. 62~5
24.41
~;~~;.~*~~:**~;***~**~:****~~**********WARNING~:*~:**~:~:***~:***~:*~:******~:~;**~:***~:*~:
IN THIS COMPUTER PROGRAM, THE OJNFLUENCE VALUE USED IS BASED
ON THE RCFC&WCD FORMULA OF PLATE D-l AS DEFAULT VALUE. THIS FOR~jLA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
**i:********~;***~:**~;~:***~:***********************~:**************~:~:****~:**~:*~:
A?
RPd NFALL I NTENS I TY AN[) 11 r:lE OF CONCENTRAT I ON RIH I 0
cor,lFLUENCE FORMULA USED FOR .:. >::iTf-:;;EP,~lS.
** PEAK FLOi'J RATE TABLE "''''
14
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
'~1!)" 1'./
'.:~;.:;. ).,:,
.!. '::0. /1..1
1 ;:.:;:. -_': J
L. _+..7.,:
(l'MPlll-ED CUNF~LUE~J(E EST'If-IArES AF~E AS FOLLOWS=
F'EA1< F-LiJ~;:: FI4TE (CF:3) - 90.. 17 Tc l;j-.'iIN..J =
TUfAL r::;;RE(4 \hCF~E:=,):::: .:If~,. (,U
l:.::,.70
~***~:~*~:**~:~*:~*******:~******:~:~*********~:********:~:~*****************~:~:~***:~**
FLew PROCESS FROM NODE
21:3. UO TO ~j()I:'E
214.00 I:;;; COI:'E =
---------------------------.-------------.------------------------------------
~;.>>CO~IF'Ll.rE PIPEFLOW 1.F~AVEL.T.I~IE fHRLI SLIPAREA(<.:"
,')'>)'~'U3ING COMPUTER-ES"fIMATED PIPESIZE (NON-PRESSURE FLOW)<(<;~<
------.----------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 48.0 Il~CH PIF'E IS 38.4 II-JCHES
?IPEFLOW VELOCl-IY'FEE1!~.EC.) = 8.4
UPSTREAM NODE ELEVA'frON = 1124.20
DC!V;~,!~::';TF:EAr"1 ~'~ODE ELE\/ATICN = 111':1.70
FLO~lJLErJC~TH (FEET) = '9:::0. (10 f'rli;rJN I NG ! S N = . 01:3
ES1'I~!A-rEr, F'IPE DiAME-rER~INCH) = 48.00 NUMBER OF PIF'ES = 1
PIPEFLOW T~~U SUBAREACCFSI = 90.17
l-RAVEL TIME'MI~J.) = 1.95 l'C(MltJ.) = 18.65
~,~:'~~~,*****:~:~***:t**~:********:~~::~***************:~******************************
FLOW PF~OCES8 FRO~1 NODE
214.00 TO ~-tO[::E
214.00 IS CODE = 11
:~'~)-CONFLLfENCE MEMOF~Y BA~Jk 4 1 WITH THE ~!AI~J-Sl-REAM j~IEMORY<~
----------------------------------------------------------------------------
-------------------------------------------------------------------------------
*~: ~IAlrJ s-rR~AM CGNFLl!ENCE LA-r'R ~::~
STREA0 RUNOFF Te INTENSITY
NUflBER (CF'S) ~~IIrJ.) (INCH/J-10UR)
1 90.17 18.65 2.471
AF,Eil
(J~"'1CF~:E )
4t::,.60
:~: :1: r'IEr--;CF:\-' BHt.J:':" .1+
s'rREAM RUNOFF
i\:ur'1E:EF~ (CF:;:':;)
"I. 1 ~:i74. ::;::5
1 CONFLUENCE DATA **
Te INTENSITY
(l''"j I r'-J. ) ( I NC:H/H(JUR)
2~:j. 47 2.0:32
~iREA
(t-~CI:;:E)
:517.20
~*~:*~:~:~:~:*:~~:*:~*~:1;1;~::~~*****~:*~:*~:**i:WARNING***1:*********:~****~:************~:*:l:
I j'J TH I ~::i CD!';lF'UTEF\: PF:CIl]!:;:AM, THE CONFLUENCE ..../ALUE U'3ED I~; Bf~SED
IJI'J T~']E PCF"C;i{~:JCV FORt--IULA OF: PLATE [0--1 A~i [::EFAULT VALUE. THISi FOF~j~ULI:;
WILL rJOT NECESSARILY RESULT II~ THE MAXIMUM VALUE OF PEAK FLOW_
~:*~:***~:******:~***i:***************~:~:**i:**~:***i:i:~:*****~:~:~:~:******:~**~::!:*i:***i:*
** PEAK FLOW RATE TABLE .*
srREAM RUNOFF Tc
NUb1E<EF( i CPo) C rc1 I I'~. )
I r'HEN'3 I T'(
( I1'KH/HOUPI
2.471
2.0::;:2
1
1243. :X:
1:::.65
.l,::,~:;O. ::::-,3
25.47
CO~!PlITED COr~FLUENCE
PEAK FLOW RA1"E(CFS)
10TAL AREAIACPESl =
ES1-I~IAl-ES ARE AS FOLLOWS;
= 1'=,50.:='3 Te(l"JIl'~.1 =
~~:t:,::::. ::;:0
2~5. 47
**********:~*********:~*************************************************:~*,~**:~
FLCM PROCESS FPON NODE
214. (1(1 TO f,jOI::E
21~5. OU ISi CODE =
A.i!?
:3
',:' >:> > >CC1"!F'UTE F' I F"EFLCil:J TF!A'/ELT I t"IE THF(lJ t'UBAREA<. <. <. <. <.
>>>>>USING COMF'UTER-ESTIrc1ATED PIF'ESIZE (NON-PRESSURE FLOW) <.<.<.<.<.
----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLO~J IN 120. 0 INCH PI F'E E' :3:3. 2 I1'KHES
15
I
I
I
I
I
I
I
I
I
I
I
I
~ _______________________________________________________________1
"
I
I
,
-
-
I
,
I
'.~'. ,_,,: -',1..._'--1.' ;", _,..... '- ,-1....'_' "", , _ -'
[,c:,:;n:, ThEt":;t-'j l'iOVE ELE\/AT I C(~ =
~LOWLENI~TH~FEETj = 5~0.i)O
ES[l~:~rEI' FiPE Dl~MET~F~iltJC~1j
l.LL.:.....
".1,- I,'
I ",_~ . ::.
(L~r~~'J
. U i.. _,
i-~f_;r'-IE'Er;:
;:.:'.r;::-E:;::. =
= lL . (iU
16::;0. ;:;:~:
TC (l-il rJ.) =
2::i. ::;;1)
PIPEFLOW fHRU SUBAREACCFSl -
TRAVEL TIr'IE(~IIN.) = .:J:J
*:J:$***~~******:~~**:r*********:~;~:~**:~:~*:~::~**:~***:~~.:~*******:~********:~:!:*:t*:~*******
f~LOW PROCESS FROM tJODE
21 :~~i. 0 I) TO r..:oJ}[
,[
21 ~5. U (I 1:'::' COVE =
....---------.----..---------------.--------------------------- -.-----------------
: ".:::- >:> f:ES 1 :~lt.;A~I.E I fJVEPEl""JDEtjT :::ITF:EAr-1 FUF( C Or'~FLUEr',":CE <-;
__-0__-_----------------------------------------------------------------------
----------------------------------------------------------------------------
T01'AL rJUNPER C'F Sr'REA~fS =
COl~FLUENCE VALUES USED FOR
Il'-JDEF'ENDEI'.jT
1 {~F:E~
:3TF:EAr1
r I r-!E:. Ci:; C CI"~C Er-JT(~A r I iJr.l (r-j I j"j. i = 2::':i. :;::0
r;.:PIIj"-~F;{iLL Ii'~TEj~':::',IT/ (InC::H/HR):;:: .2. U7
1-01'AL S'rREA~i AREA(ACRES) = ~6J~80
PEAK FLOW RATE(CFS) AT CONFLUE1'JC:E =
1(,150. ::;:3
:~:::~.l;.::.:..,;,';~~;;~~*:~~;*:~:~~:~.~:~;*;~**~;-!;;!;~;~:*~;;,;~;:,;~;~;:~~;~;~;I:~;~;~:i;~:~**~;;~;:~:~*~;i;~:1;*~:!;~::~**~:~;*:~~::';*;~;I;
FLOW F'ROCESS FROM NODE
:300.00 TO r~ODE
.::;: I) 1 . 00 I ~:.:; CIJDE =
21
___________________________________.__________________--------------_.____0.___._--
.'..~>>RATIONAL METHOD INITIAL SUBAREA AI~ALYSIS<<<<(
----------------------------------------------------------------------------
----------------------------------------------------------------------------
ASSUMED IJ~ITIAL SUBAREA UNIFORM
DEVELOPME~T IS SINGLE FAMILY (1/4 ACREl
TC ~ ~*[(LENGTH*:~3)j(ELEVA1.ION CHANGE)]**.2
INITIAL SUBAREA FLOW-LENGTH = 1000.00
UP~3Tj;:EAr.'1 ELE\lATION:::: 11.24.20
DOWrJSTREA~1 ELEVAI'lON = 1116.20
ELEVATION DIFFERENCE = 8.00
Te. = .3':1:3*(( 1000.00:",\:*3)/~ :~:.OO)J:t:*..2 =
100 YEAR RAINFALL INTENSITYCINCH/HOURl = 2.657
::.::() I L C LA:::;:~, I F-l CAT I CiN 1:-:; I' c. 1/
SIr~GLE-FAMILY(1/4 ACRE LOT) RUt~OFF COEFFICIENT =
?UBAREA RUNOFF (('FS) = 2~.2~
'rOl"AL AREA(ACRES):;:: 10.70
I6.::>L)
. ;::172
23.23
TOTAL RL~OFF(CFSl =
**;~**~;**.!;*;~~:*~~;*:~~*~;~:~************~;****:t:**:~*:~~;*~::~*:~:~~:***;I;**~;***1;:~*~;***;~*i:***
i~LOW PROCESS FROl1 NO[JE
301.00 TO NODE
301.00 IS CO[)E =
. " ~'DESIGNATE IJ~DEPEJ~DEN'r STREAM FOR CONFLUENC:E<<~:('/
~.\'>>ArJD COMPU1'E VARIOUS COrJFLUENCE[) STF~EA~I VAL~ES<<<<.,
.----------------------------------------------------------------------------
-----------------------------------------------------------------------------
-rOl'AL. ~~U~~IBER OF STREAMS = L
OJNFLUENCE VALUES USED FOR INDEPENDENT
l'lr'lE OF CONCENTRATIO~J(~IIrJ.) = 16.34
RAINFALL INTENSITYCINCH/HRI = 2.66
T01-AL STREAM AREA(F~CRES) = 10.'70
F'EAK FLOW RA'fE(CFS) AT CONFLUENCE =
~;TF:EAl'1
2 ARE,
.-:,.':, "
.';"'-'. "';"'-'
** C(!NFLUE~ICE DATA **
STREAM RUNOFF
NUMBER (CFSI
1 1 E.50. :::::)
.i 23.2J
Tc
(Mm. )
INTENSITY
(INCH/HOURI
Af~EA
(F',CF<EI
2~5. :30
2.067
563.80
10.70
2. 6~57
16.:34
AA
**********;~~*********************WARNING**********;~*************;~*********
HJ THE; COMPUTER PROGRA~I, THE CONFLUENCE VALUE USEi:' !,:, BASEi:'
ON THE RCFC&WCD FORMULA 'OF PLATE D-1 AS DEFAULT VALUE. THIS FORMULA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLCM.
**************************************************************************
It:.
I
I
I
I
~ ~--------~-----------------------------------------------------=------------
I
I
I
I
I
I
I
I
I
I
I
I
I
I
<.U~..~::.-l .uE:i-.;C-E
F'uFi:t-1:jLA
r-':- U~~':
;:" !"F:L..2d'J .~\.
U::)E:::t:.l
.,..,. -',r" ','
... r-r.;.:--.,"..
;:. LC:;) ~':r1T E
f"H[.,'LE ,..\
":1 ri:;:Er"~)j'.'1
i--:;;U:..~::iFF
lIHEn'::; I TY
( INCH/HOUf;:)
Ie
1'.)i_1r'JE-:EF'
(C-F~',,,,
u"n~~. )
16.>1
:2 ~ 1'':,':;7
1
1 Ot.:,~::~. ::17
i E-6::::. ':} t
_.... ...
"':::::'. ::;:1..1
2. (It,;
c:!Jr-~F'UTED C()r.~:::-LI.JErJCE
PEAK F:LGW F~A'rE(CF'S)
TO"rAL AREA (ACRES) .-
E::::;T I f'."I':~TE:3 ~lF<E
= .1.(6::;:. ')J
A:::i FOLLO:,:;~::i:
r c (i:-III"~ "i =
2::). :30
;:i74. ~jO
~:~~::~~:~~**;~;~:!:~*~:~::.:~*:~:~:!:******~*:~**:~*;~*:~*~::~***:~***:0**:~:~******;~*:~***:r*:l:**:~*****
F"LC(:j F HOCE::0:;":i FF;:C'f-', f"~O['t:
:~~O:l . (I U TO ~-!Or:E
'}COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<~('~
.... ";."> '> >U':' 1 j\JG CJ:I!,:,WUTEH-.E:3T I ri;; TED F I F'E~3 I IE (t'~Cl!'.J '-FRE:::-i~;U:'iE FLC1~,'.J) .;,-.... ,"
-----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEF'TH O~ FLO~ IN 120.0 INCH PIPE IS 88.8 INCHES
P1PEF'LGW VELOCI1"Y(FEE-TJSEC.) = ~6.~
UPSTREAM NODE ELEVA"fION = 1112.30
DOWrJ:3"rREAM NODE ELEVA1'I(!N = 1105.00
FLOWLENGTH(FEET)::: 520.00 MANj~ING'S N
ESrli~!ATErJ PIPE DIAME'T'ER(IN('~1) = 120.00
F':r PEF'LO~.'>J TH:::~U ':;UBAF:':EA (CF~=;)::: 166:::. 'j 1
TF;;A"/EL rJ.1~-![(r-lIf~.);;: ..3..:.': rC::('~1Ij'J.}::: 26.1:3
~.. . [11:3
r'.,IU~'i.BEF;: C'F
F' I F'E:'; =
1
.~:~***~;~~,**~:~;~*;~:;::::*:~:~:~*********~*;~:~************~.*******:~**~*:~:~:~*:~************
FLOW PF~OCESS FRCI~! NODE
:3U:::::. (It) nr'i~l rJCif:'E.
:::
,:':02.00 I',; CCil.E =
'" '-:.".: ".: ".:-tC;VD I T I:~!rJ cr- ::;:":UBP.hEA TU riAl rJL. I NE F'E~k FLOi.v. -:.: -::.:
"----------------------------------------------------------------------------
----------------------------------------------------------------------------
i00 Y~AR RAIJ"~FALL ItJ"T"ENSI1"Y(INCH/HOURj =
:::;!"~jI.L CLi;~3"::,IFICATI(JJ'"J I:::; !Ie"
CUl-lr:(EF;;C: I PiL. I:-E\/ELOF'i'-'IENT F:U~~OF'F
SUBAREA AREA(ACRES) = .00
'rOTAL AREA (AC"RES) - 574.50
TC(r-~II'J) = :~~6. 13
~~. 0:5,3
COEF"FICIE~JT = .8797
SUBAREA RL~OFF(CFS)
-rO-rAL RUNOFF<CFS) =
= .00
It(;3. '=Jl
:~~:****;r*******:~*:~:~**:~*********:~*:~*********************:~*****:~*****:~******:~:~:!:
FLOW PRO('ESS FROM NODE
:302.00 TO NOI:E
,=<;:12. U 0 IS CCil.E =
1
'}}DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<(~~'
"----------------------------------------------------------------------------
----------------------------------------------------------------------------
r(t'l"f~L NUMBER OF Sl'REAMS = L
CCiNFLUENCE VALUES USED FCiR INDEPEnDENT
TIME OF CC~CENTRATION(MIN.1 = 26.13
RAInFALL INTENSITVIInCH/HRl = 2.05
TCtfAL STREAM AREA (AC:RES) = 574.50
PEAK FLOW RATEICFSl AT CUNFLUENCE =
3TFt:EA1'1
1 APE:
166:3.'3'1
~*~**:~*****:~t:~~:~:,f:~:~:***~:*~:*****~::~~***~:******~:******i:**:~**:t****~:***~:**~:~:*~:*~:**
FLOW PROCESS FROM NODE
30:3.00 TO NODE
:304.00 1:3 C:ODE =
21
- -;.~;~ ;;;:~~~,~,~~~"'~~~~,;;'- ~I~~~ ~~~- ;,~,;~~~~- =J~=~~'~~~:: ~~~ ~ -- -- - - - -- --- ..---.. - - - ''-'is
============================================================================
ASSUMED InITIAL SUBAREA UNIFORM
DEVELOPMENT IS SI~GLE FAMILY (1/4 ACREl
TC= K*[ILENGTH**3l/CELEVATION CHANGE)]**.2
INITI,OfL, t'UBAREA FLOC'i-LENGTH = 600.00
11
., _'-;." ~'--.~ 7 i;, ...._.,
::::U:::',"I~'lTICtr~ [.iIF"FERENC)=: = ,_,~ '-':".'
T;_-:: .=:-~';":=::"~:(', t:.I~IU.OCI.I:'o':.:::>"" .:,.i'::-I~I.lj'~'J -. _.
11)0 1EAR RAIJ~FALL INTENSI'rY(Ii~~H/HO~R) = 2.38l)
:';:OIL CLi~:;~,IFICHlICtr-.t I~=, liB"
SINGLE'-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT =
SUBAREA RU~JOFF(CFS) = 13.25
TOTAL Aj~EA(ACRES) = 5.90
J -~.,
lJ...::
. 7;:~O 0
j"OTAL RUNOFF(CFS) =
1:3.25
~~:1:~i:*****~***~:~**~::I:~:~:1:*~:~~*:I:**~:*~:1:***~::~~:*~*1:**~:****~~:~:~:~:1:*1:~:~:**********~:*~:~:
Fi_U!,'J f:'F:OCE::;":;:; FF.: Oi" r.~:JDE
304. U (I TO r.~UDE
305.00 IS CODE =
:3
:~'COMPUTE ?IPEFLO~ '-RAVELTIME THRU SUBAREA<<~"/ -
.. )}~~USING COMPlITER-.ESTlr1A'rED PIPESIZE (tJOrJ-Pi:~ES0~RE FLOW)~--
==:::=:::::::===::=======:=====:::=:===::==:===::::==========================
DEP1'H OF FLOW IN 24.0 IN(~i F'lr)~ IS 17.1 INCHES
F~IPEFLOW VELOCI'fV(;=EE1-/SEC.) = 3.6
L!PS-TREAM NODE ELEVA1'IO~j = 1.l12.30
j):J~:Jr.J~::\TF\r'::Aji! r..!JDE ELI:::\"ATIU~.4 = 1.10:3. ':.=to
FlOWLEN~TH,FEET') = 6~;O.OO ~AN~JINGjS N
E5Tli'1A'fED PIPE I)IA!1ETER(II~CH) - 24.00
PIPEFLO~J 'l'~~RL! SlIBAREAtCFS) - L3.25
Tr::~(:!\"'EL TII'.'jE(l'iIJ'.4.) -= 1.')~5 TC(/""r":II'.4.) = 1.6.06
= .013
NU~1BER
:JF'
F'IF'E~; =
1
~:~~:~:*i:~:~:~:****~::~**~:~:~!:'~-1:;~:I:~:~:~~:*~:~q:**~*~**~:*:~:**:~****:~~'~~:*1:~:~:***~:~:****'!:~:~:*~:~::~*:~~:
FLOW PROCESS FROM NODE
::30:5.00 TO f'~ODE
:::::O~5.00 I::"; CODE =
:;::
--------------------------------------------------------------.----------.----
. ....~.'~.).ADDITIOtJ OF S!JBAREA 1"0 MAINLINE PEAK FLOW<(("
============================================================================
100 YEAR RAl!~FALL II~TENSITY(INCH/HOUR) = 2.682
'3'U 1 L CL(-4~'::\ I F' I CA'r I Oi'.! I ~\ tl ell
SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8178
SUBAf~EA AREA (AI:RESJ = 7.60 SUBAREA RUNOFF ((,FS) ~
TO'fAL AREA(ACRES) - 13.50 TOTAL RUNOFF (CFS) =
Tcn''''!i~n = 1;::,.U6
16.67
2'3..92
FLOW PReCESS FROM t~ODE
:JO:j.OO I'C) r.:C)[::E
:JO~::;. (I (I 1:3 C:OI:'E =
~))~>DESIGNA'I-E INDEPENDE~Jl 51'REAM FOR CO~JFLUENC'E:,:'.
"'\,'~')'A~JD COMPU'fE VARIOUS CONFLUEi~CED STREAM VALUES<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
TOTAL NUMBER OF STREAMS = .~
COtJFLl!ENCE VALUES USED FOF~ I~JDEPErJLErJl
TIME ~= CONCENTRATIC~IMIN.1 = 16.06
r,r~ilrJF-t~LL INTEf\J:.:il TY (INCH/HF:) = L. I::;':::;
TOTAL STREAM AREAIACRESI = 13.50
PEA~( FLOW RA1'ECCF'S) A'f' CONFLGENCE =
::';TF~:Egn
2 ri~:E ~
2'3. '~~)2
~~: CONFLlIENCE DATA ~~
::;:; THEAr"! HL'NUFF
NUMBER (CFSI
j 166::::.91
..:;, 29.. '~:t2
Te
I NTEN:::- I T'y
I INCH/HOUR)
?"~REA
(11 I i"J. )
(i4CREI
2,~.. 1:3
2. O~53
:574.50
1:3.50
16.06
2.6::::2
~:t**~:***********~***~:***:~*~~**~:**WARNING********~:i:~:**~:~:**~::~*****i:*:~*****:~:~
Al~
IN THIS COMPUTER PROGRAM, THE CC~FLUENCE VALUE USED IS BASED
ON THE RCFC&W[~ FORMULA OF PLATE D-1 AS DEFAULT VALUE. THIS FORMULA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
**********~*************i**********************~:*******~:~:*********~::~*****~:
I'(AINFALL INTENSITY ANI) TU1E OF CONCENTRATION RATIO
\Q
I
I
I
I
I
I
I
I
******:~*:~:~*******:~**~::y*******:!:*****:~:~********:~**~:***:~*******:~*:~********:~*:~**
I
I
I
I
I
I
I
I
I
I
,
I
'.::1: FE:";;.:.,
;-'LU~'I F:i'; fE
r i-~B!_C: .~: .;"
.~, rF;;:::.~r-)
PU~~C'FF
Tc
.1 ~.~ rE~J':', IT\,'
l..~lj;'-~b E:~I:;_
(CF:3:;
1 O~:;,,::.. 1)7
.1.:;:,':t 1" ::;; 1
I, i'1 I i'.~ ~
,; INCH;, H:~iUF(..1
1
16" Ot:.
2. t::~:2
'::6.13
2~ O~5J
:2
COi"-'lF'UTED C-Ci'~FLUEtJCE
F:'EAK FLOW RATE(CFS)
TOTAL AREA(t~CRES) -
E~:;Tlr1i:::lrE:';:, nF~E
= ItS91.:::1
.2("" i :~:
f:'l:-:' FC'LLOl!J:~~, ~
Tc (rlll'.J.) =.
:::;e::::. (ilj
~:~:!::!::~*~*:~:~****:~:,**~*:~***:~~**~~::~***:!:;~:~*.t:~:~**~:!:~:~:~******;::******~:*:t**~::~*~:***:~.~:~
FLO(~ PF~CCESS Ff~O~1 ~,IODE
:JU~_~i. OU TO nOVE
306.00 IS COLE =
:- ".: .,:- >CC::"!PU"j E F'iF'EFLOlIJ -rF;A')[L r 1!':!E 'f'HhU ';:;U.8P.I::;:EA:': <:;.-:
.. "> >U'3 I I',~G C:ljJ"JPUTEH.-E:3T I I"'JFiTED PI F'E:3 I ZE (t~OI'.~-FF:E:::;':;;UF:E F..'LCi~IJ) < -;-' .'
============================================================================
0EPT~i OF F-LOW II~ 120.0 II~CH PIPE IS 90.0 Il~CHES
PIPEFLOW VEL_CCITY(FEE1/SEC.J = 26.8
UPSTREAM NODE ELEVATION = 1105.00
DOWtJs'rREAM NODE ELEVA1'IorJ = 1097.~O
FLOWLENGTHCFEET) = 550.00 MANNING'S N
ESTIMATED PIPE DIAMETERCINCHI = 120.00
PIPEFLOW THRU SUBAREACCFSI - 1691.81
i'RAVEL TIME(r1IN.) = .34 rC(MltJ.) = 26.47
= .01:3
NUMBER OF PIPES =
.l
FLOW PROC'ESS F'RO~1 NODE
:306.00 TO NOVE
:3Ut::.. 0 (I I ~:;:, CCll.":'E =
.----------------------------.-------------------------------------------------
")))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((
~===========================================================================
100 YEAf~ RAlrJF'ALL. IN'T'E~JSITY{INCH/HOUR) =
:?;OIL CLt="!'::l::;IFlc:?YrIOI',~ I:;~ flB"
C Uiilt-'~EhC I t-1L I.'F.'::\/ELI)Pi'"lErrr F~:ur'~UF.F
SUBAREA AREA(A(.]~ES) = .00
TOTAL AREA(~C'RESj = 588.00
.2.0::;::::
COEFFICIENT = .~b~4
SUBAREA RUrJ01=F(CFS) -
l'OTAL RU~JOFF(CFS) = 1691.8,[
.00
rc (l~; J i'~;! ;;::
:2f~,. 47
*:~:t:~:r*:y*:~******~:***:~*******************************************************:y
FLO~J PROCESS FROM ~JODE
306.00 TO NO[JE
::~U6. 00 I::;; CODE =
1
, , \))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(((<<
----------------------------------------------------------------------------
--_._------------------------------------------------------------------------
-rOl'AL NU~jBEF~ OF STREAMS ~ ~
1.:::CIj'~;::LUE:r_H::::E \/ALUE3 U~3ED FOR I i.~DEPEr~[)ENT
TIME a= CONCENTRATIONCMIN.1 = 26.47
RAINFALL INTENSITYCINCH/HRI = 2.04
TOTAL STREAM AREACACRESI = 588.00
PEAK FLOW RATEICFSI AT CONFLUENCE =
3TF:EAl'l
1 APE:
1691.:::':1
~:*~;*~::~*:~:~**~:i:~:*~:~:*~*****~;*~~:*******~:*i:*****~:~:*~:~:**~**~::~**~*~::~**~;****~:****~:~:*
FL.OW PROCESS FROM NODE
307.00 TO ~W[)E
:30:::1.00 1:3 CODE ;=:
21
)RATIONAL METHCW INITIAL SUBAREA ANALYSIS(((((
----------------------------------------------------------------------------
__~R_________________________________________________________________________
ASSUMED INITIAL SUBAREA l~IFORM
DE\/ELUP~IENT I'':' ::;n~t;LE FAI'IIL,( (1/4 ACRE I
TC = K*[(LENGTH**31/IELEVATION CHANGEI]...2
INITIAL SUBAREA FLC~-LENGTH = 700.00
UPSTREAM ELEVATION = 1108.30
DOW~STREAN ELEVATION = 1104.20
A1r
I~
LOI) fEAR RAII~FALL II'JTEtJSITYtIrJCH/HIJUR) = 2.7'77
__':~:IL CL~'::,:~\'i.FII~Hr1:Uf"-1 I:=~" ',;::'.
Srl~~LE-FAMIL'((1/4 AC.RE LOT) RUr~OFF COEFFIC,LENT =
" .-: it:,./
SUBAREA R~NOF'F(CFS) -
TOT~~L ;iF:EA U2jC:F;E~3) :;::
21)" U6
9. :30
T01-AL RUNOFF (CFS) =
::;~o. 06
'~~~~~**~*'!:**~:****1:'!:*:~~:**~:*~:*~~***~:*i:**~:***~:********~:****~***~:~:~:***~~:~*:::*~:t~:~:
FL_()W PROCESS FROM NODE
:3(1:.3.00 TO I'JODE
309,,00 IS CODE =
.3
~'~'))'COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<"'"
'~~.j~'>USING COMPUTER-ESTl~JATED PIF~ESIZE (~JOrJ-PRES2UF~E FLOW)~'/
----------------------------------------------------------------------------
----------------,------------------------------------------------------------
I!E;::'TH elF ;':-LO~;) I t..) ~:~ )'. (I I i',le H F' I l-:'E I :~, 21. ::::: I i'~C:HE:::;
PIF'EFLOW \'ELOCI"1"Y(FEE1"/SEC.) = 6,,0
cw":rrr;;:EAI'"1 nUVE CLE\/i;T I OJ''J:;; 1 J 04" 20
DOWNS'fREAM NODE ELEVATIOrJ:::: 1101.20
FLC!l'JLEUG'fH !;FEL",.1:::: 6(1). 00 r--1Ai',!t'.II~,~G' :::;, d
ESTli1ATED PIPE DIAi~ETER(Ii~CH) = 27.00
PIPEFL(!W l-~'!RU SLIBAREA(CFS):::: 20.06
n:-;;(i\/EL TIr-JEUHf'L):: 1..;'=':::: TC:U-'III'~.) - 1(:,;,.76
:::: .013
1'~Uf<1E<ER
OF
FIFES; .,
1
~:t~*~*.~~:~:~*~~*1::~:~*'~*.I:*~:***:~;***:~**~*******,~************~:*~:**i:**:!:~:~:~:**:~*:~**~:**
FLOW F'ROSESS FROM NODE
30',i.00 TO NO[:E
.309.00 IS CODE =
::::
~))')ADDI1.iOl~ OF SUBAREA TO MAli~LINE PEAK FLOW(<('~/
======================::::::::::::=======::::==::::::::::::::::::::::::==============::::::::======::::::::::::::::=========
IUO YEAR "RAltJFALL INTENSITY(INC~i/HOUR) = 2,,620
:::iOlL CLPr~iS:dFIC:ATICj'J It; lJf;!;
SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = ,,7'715
SLfPAREA AREACACRES):::: 8.20 SUBAREA RUNOFFC('FS) =
I"OTAL AREA(ACRES):::: 17.50 faTAL RUNOFF (CFS) =
Tl~. (r-'iI;'!) :::: lb.7t.
16. ::;7
3~~,. 63
;~**:t****~:*~:;~*****:~**:!:*;~:~****:~*************:~********:~********:~:~*:~**:~******:!::~*
FLOW F'ROC'ESS F-ROr1 NOIJE
3U9~ 00 lei rJOVE
3U~.OO IS CODE =
1
. . > >- I.'Et; 11"~~~~A-f'E I rJr::EPEj"-~DErjT :~\TF:EAM FOR CONF'LUEr~C:E <: <" " " "
"~')~'}>AND COMPUTE VARIOUS COI~FLUENCED STREAM VALUES<~",
rOTAL NUMBER OF STREAMS =
CCij\IFLUENCE 1./{;LUE:::::i U:;"EV FOP l~H::EPENDEtJT
TIME OF DJNCENTRATIONlMIN.l = 16.76
RAINFALL IN1'ENSI-r'Y(INCH/HR) = ~.o~
l"Ol"AL STREAM AREA{ACRES) = 17.50
PEA~( FLOW RATECCFS) Al' CONFLUENCE =
'::'TREAtl
:2 AF~E ~
:36.63
** (:ONFLUENCE DA'fA **
Sl'F~EA~j RU~rOFF
t'~UJ"jBE:Fi:
1
(CFS)
're
ll',lm. )
INTErr,'ITY
( INCH/HOUR)
AF~EA
(ACRE)
16':11. ::::1
,..:It',. t=.:j
:::6.47
16.76
2.038
:2.620
5:~;:=:. 00
17. :.50
~1:****~;*~:~*~:~:~:**1:**~*i;****~:*****~:WARNl~IG*************~:****~:***************
IN THIS COM~jTER FROGRAM, THE CONFLUENCE VALUE USED IS BASED
O~ TI~E RCFC&WCD FORMULA OF FLATE D-1 AS DEFAULT VALUE. THIS FORMULA
~'IILL r~OT r~ECE'3':;ARILY RE'3UL T II'~ THE f<lAX H1UM VALUE OF PEAK FLOl~.
*~:*****;l;***********~****:~*~:****************i;*****~:********~:**~;************
~
RAINFALL INTENSITY AND TIME OF CONCENTRATIC~ RATIO
CONFLUENCE FORMULA USED FOR _ STREAMS.
20
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I'JU;"'jB~::::-:::
'..I-~ 1 (J _ .!
t. .i. r'~'.~.H.: HU'_iF:.J
I" l_.!-.::;>!
11 O:~:. (Ie.
1720. :=..1
1 {'. n/,::>
.. --.-
.:..:. t;,:':;:U
26.47
::.0:3::;
COMPUTED CONFLUENCE
PEAK FLOW RATElCFSl
T"O'I'AL AREA(ACRES) =
E>3T I f"'IA lES h;:;:E
.;:: 1720..31
t,Cl;:i.50
;:):3 FCLLC~~J~=;;
T"c ';i'1Ir.~.) =
",::'='. h+ 7
*~*:~*********~:*:~:~*:r*******************:~**********:~:~*:~*****:~:~;~********:t*****:~
FLOW PROCESS FROM MJDE
.:::.:(1':'1. U U "1'0 r-~OJ:::E
~lO.OO IS [O~E =
.j
~~>(ONPUTE P11:'EFLOW TF<AVEL1'Ij~IE l'I~RU SUD~REA<(~ ~
,,'~~')')'lISING (:OMPlITER-ES1'IMATED PIPESIZE (I~ON-'PRE:3S~iRE FLO~J)(~~~'
~======:=:====================================================================
r)EPT~1 OF FLOW IN 1.20.0 INCH PIPE IS 91.2 II~CHES
PIPEFLOW VELOCI1-Y(FEET/SEC.) = 26.9
UPSTREAM NODE ELEVATION = 1097.30
~OWNSrREAN NODE ELEVA1'ION = 1089.30
FLO~ILENG'rH(FEET);:: 570.00 MAtJNINGIS N - .013
ESTI~]ATED PIPE DIAt1ETER(INCH) = 120.00 tJUNBEF~ OF PIPES = 1
PIPEFLOW THRU SUBAREAICFSI = 1720.31
TF:~l"'/EL. TI;'!E(i"llr~.,!:: ...3~i TC:n1IrJ.);:: ::::6.:::::2
*:~******************:~************~:**:~*:~*:~*:~***:~***~::~*****:~**~:*****:~:~********
.FLOW F'f~OC~SS FROM NODE
::110. I) I) TO r.!CILE
310.00 IS CODE =
))>j>ADDITIO~J OF SUBAREA TO MAINLINE PEAK F~LOW(;('"
--------------------.--------------------------------------------------------
--------------~~-------------------------------------------------------------
100 yEAR RAI~JFALL_ ItJ"fENSITYCINCH/HOUR) ;:: 2.024
:~~(J I L C:LA~=;'~"; I FICA T I ON I S II B II
i:O~!MERCIAL DEVELOPMENT F~UNOFF COEF'FICIENT = .~b~~
SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) = ~OO
fC)'f'PiL I:~F;:EA (AC F;:E::=,).- 1~,U:5 M ~'~10 ""(JT ('"~L F:Ui'4()FF (CF~;) = 1720.:3.1.
TC d'''JI i'~) = 2(':;,. ::;:2
~:*********:~*~************************:~**:~**:~******************~**********~**
F'LOW PROCESS FRO~I NODE
:JI0.00 ro NOrE
J.1 U . I) (I I ~:; CODE =
.l
.... ':,"> ..> [::Et.~ I Cjr~AlE I rJDEF'ENDErJT S TPE{il,;l FOF~ CIJf'4FLUENCE <: <" -:."
.----------------------------------------------------------------------------
--------------.--------------------------------------------------------------
TOTAL NUMBER OF STREAMS = ~
CONFLUENCE VALUE-=:< U"iE[) FOR HWEF'ENDENT :~'TREA~l .1 ARE:
lIME OF CONCENTRATIONININ.) = 26.82
RAINFALL INTENSITYIINCH/HRI = 2.02
T01"AL S'fREAM AREA(ACRES) ;:: 605.50
PEAK FLOW RATEICFSl AT CONFLUENCE = 1720.31
'~:~1;~**:~***~:*:~:~:********~:~:*~*~:***~:***~:~:**~:**i:************;I:~:***:~*~:*******~:1:*:~**
FLOW PROCESS FROM NODE
311.00 TO NODE
312.00 IS CODE = 21
~>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSI-=:<(<<<(
----------------------------------------------------------------------------
-----,-----------------------------------------------------------------------
A.3:::;'-'~lE[;' I NIT I AL ~:;UBAFlEA UN I FOHM
DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE)
D~ ; K*[ILENGTH**31/lELEVATION CHANGElJ**.2
HHTIAL SUI3{;nEA FLm'J-LErJGTH = 6''';0.00
UPSTREAJ'1 ELEWHION = 1)00.60
DOt~NS'rF~EAM ELEVATION = 1096.60
ELEVATION DIFFERENCE = 4.00
rc ~ .393*[( 650.00**3)/( 4.00)]**..2 = 14.497
lSfv
21
I
,.
I
.
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
..:;...rJ(_~LE"F'~~I";ILY":1/4 A:~:!=;:E L..CJT:I ~:Un~Y':"-F C.i=l!:::f~-FICli=-l.~T ;;:
"~'''''''''"
~u2~~~A RL'NCFF,CF-S) =
1 ':'" ,,_,
'rOTA~ AREA,A~RESj =
::;:. ~~~~ I)
T01?~L RUNOFF(CF:~) =
1 d.. 7;~:;
~;*1:*'!:~:~~:~:~*1:*~:**i:~:i;*i:*i;'~~:*i:~:**~;**~:'~:::****:!:~:1::1:*:!:*~:i:$~:*~:*:!;**~;****i:i:**i:*:~***~;**~.
F'LO~,~ F'F:C)C:E:3S FF:O~1 NODE
312.00 Tel I'~CIDE
313.00 IS CODE =
'3
----------------------- --------------------------.----
. . })).(:OMPUTE F'IPEFLOW TRAVELTIME THRU SUBAREA<<<~,
"~>>USI~JG COMPUTER-ESTIMATED PIPESIZE (NOrJ-PRES6URE FLOW)~
============================================================================
VEF'TH elF r=-LO;:j Ir~ 27. (I I~~CH PIPE 1::1 1'~. ::: It)CHE:.;,
PIPEFLOW \IELOC:IT.((FEET/SEC.):::: 6.U
UF':::.,.fF:EAt'j tjOI:'E ELE'<./A T I C't'.l:::: 1 O';f.:;,. 60
DOWrJS.fREAM NOflE ELEVATION:::: 1093.50
FLC~~LE~IGTH(FEE1'):::: bOO.OO MANrJI~GiS ~~:::: .013
i::::3T I l'ii,:4TED F'IFE D I Af""11::TEF (INCH) - 27.00 NU!':1BEJ=t: OF F'IPE~3 -- 1
P1PLFLOW;.HRll SUBAREA (C.FS) :::: 18.78
Tr<~:i\.'I::L Tln~(IlItJ.):::: 1..67 TC(l"iIl'~.):::: 16.16
~;S~;*~;~:~:.~~:~:***~*~*~:~:*:~~~:~:~~:**~:~:*~;************:~****~~**:!;~;~;*1:***~:*~:*~:i:**:~******~;
FLOW PROCESS FROM NODE
:313.00 TO NODE
::::{13.00 IS C::CIDE ::::
0___-__--------.-------_.____0___-..------_.____0____-_____.____.__________.___.__________
.;.>>):~.ADDI.rION OF SUBAREA TO r1AINLINE PEAK FLOW<
....,
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAI~~FAL_L II~l-ENSITY(ll~CH/HOUR) :::: 2.673
::';,0 I L CLPif;::..; I F. 1. CiA r I C:l"'~ I ::; I: B;;
::;II',~GLE -FAj.''iIL\/ (1/4 P1CRE LDT) j':;:UI'K)FF C:OEFF .ICIEr.~T :::: . 77:~i'3
:3UfAHEf-i ?;r~:EA \ f.~C hE~:.) = ::::. I) (I :::?UEiAF';:EA F;:UrJOFF (C F~::<j -
TOfAL AREAlACRESI - 16.50 TOTAL RUNOFFICFSI =
rc (;.IIf'J}:::: I6~ IS
,[6. ':~4
-.r.;:. ,.
.";,..1...:'.'::'
~~::~*:~:~~:~:~***:~*:~:~*****~~;~:~:!.:~***:r*****************************;~:~;~***:~*********
FLC~'! i"f":OCE':":' FF:Ot1 ~,iO[:E
:]1J.00 TO NOf::E
313.00 IS CODE ::::
1
..-----..--------------------.--------------------------------------------------
.'~.;!>0ESIGr~ATE INLEPEtJDEN1' STF~EAM FOR C:ONFLUENCE<<<~~~
~}}}}AND COMPUTE VARI~jS CONFLUENCED STREAM VALUES<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
To'rA~ NUMBER OF STREAMS ~ 2
CONPLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE:
Tlf1E OF CO~JCEN1-RATION(MIN.) ~ 16.16
RAINFALL INTE~JSITY(INCH/f'IR):::: 2.67
rCITAL ::-;Ti::':EAM AREA (ACRE:::,):::: It:,~ 50
PEAK FLOW RATEICFSl AT CONFLUENCE =
.",r:- .',.-,
._,._1. ...;...::.
M* CONFLUENC:E DATA **
SlREAM RUNOFF
NUMBER (CFS)
1 17::;::O.Jl
Tc
UlIN. )
HHENtiI TV
( HK:H/HOUR)
,2.024
2.67:3
AF~EP1
IACRE)
60:::i.50
1 t'::,~ 50
- - ..-
"::'C'. '::'.1::..
,~
:31.5. :32
It.::,. 1 (,
~:*i:**~:*:~**:~~:**~;~:!:~;:~i:.~**~;~:********WARNING~~~:~****i;****~:****i:*****~;*:~*~~***i:**
Ii, THI:S COI'",PUTER PROGF\AJ'l, THE COiWLUENCE VALUE IY;Er, IS BASED
ON l~E RCFC&WCD FORMULA OF PLATE D-l AS DEFAl~T VALUE. THIS FORMULA
WiLL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
i;~:~~***;~*******~;~***;~**********:~*i:*************;~~;***********~:***~:*:~*:~******
FiAHWALL INTE~EiITY A~,[:' TU1E OF CONCENTRATIOi, RATIO
CONFLUENCE FORMULA USED FOR ~ STREAMS.
'5>
*. PEAK FLOW RATE TABLE ..
STF:EI'IM RUNOFF Tc
INTEN'3ITY
22
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
, I . 1),"+
'..' g '-' ,~-
"
..:.:." '.J :.-+
CC~!PUTED CI::NFLUENCE
PEAK FLOW RATE(CFS)
TOTAL AREA(ACRES) =
E:~ -r I r'lA TE.:~, I.2J~E
::;: 1747.04
62:2.00
t~:~-, f:-i~'LLC:!,:):~, ~
TI= d':1IN.) .:::
':':'1::;,. ,='...:.:.
:t***:~:~*****:~;~:~**:!:***:::**;~**********;~********~:*:t**:~*:Y**:~;t~:w:~:~****:~:~:~~:;~*~.;::*;~:~:~:r
FLOW PROCESS FRCM fJODE
.:31::i.OO Ter l'~CrI:'E.
J!4.00 IS CODE ::;:
-------------------------------------------.-----------------------------.----
':. >CCll'-!PU"i-F~ F' IPEFLO~)J TnA\/ELT I ;:'1E 'fHHU :~:UEhHEI-4 :;.:; :'.
',~'~)'>USI1'JG (:OMPUTER.-ES"Trt1Al-ED PIPESIZE (I~O:~-PRESSlrRE FLOW)~'
----------------------------------------------------------------------------
----------------------------------.------------------------------------------
DEPTH OF FLOW 11'J 120.0 Ij~C~j PIPE IS 92.5 Ii~C~1ES
PIPEF~LOW VELOCITY~FEET!SE(...j = ~~.~
Ui~Sl-I~EAJ~ r~ODE ELEVATION = 1089.30
[~(iWrlS1.REA~1 ~~O[:E ELEVA1'IC:N = 1081.3(i
FLO~!_ENG1-H(FEET):::: 570.00 NA!~NINGIS N - .013
ES1'I~!Al'E[,' PIPE DIAMETER~INC~ij :::: 120.00 ~JUMBEf~ OF PIPES - 1
F' I FEFLCI~'.J THFU ~::,UEi::~}":;:EA (CFS):::: 1747. 04
TRAVEL TI~lL{~IIrJ.) = .3~i TC(t1I~J.) = 27.17
***;t*******:l:~;~**:~**~*:~*~:******~:******~:***********************:~*******:~:~****:~
Fl_C't:J F'F;OCE::;:'~i FHC1r'! r~CIVE
314.00 TO nODE
314.00 IS (C~E =
:::
...----.---------------------.-----------------------------------.------.---------
.'.~;>>ADDI.T-IOj~ OF SUBAREA "0 MAINLltJE PE~K FLOt~<<<./
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 ~EAR RAl~JFALL I~J-r.ENSITY(INCH/HOUI~) =
::::;OIL CLA\:':-;3IF"ICATICll'~ I:::i 1I811
COMMERCIAL DEVELOPt'IENl RUNOF'F
SUBAREA AREA (ACRES) = .00
TO'rf~L Af~EA(ACRES} - 622.00
re: (!':I I t'~) -- .27. i"7
2.009
COEFFICIEnT = .8692
SUBAREA RUNOFF(CFS) = .00
To-r'AL RUNOFF'(CFS) = 1747.04
~:~*~:~~,~~:*~~*~:~~;:I:;~***:~W***:~*****:~***************:~***:~**:~**********~*****:~****
r:~LO'::J F'r;:CCEt.~.~, FP()i"1 :--~CIDE
.J14.0U ro t-.JOI:E
314.(10 IS CODE =
.------.------..----------------------------------------.-------.---------------------
.~.~>.;.DESIGNA1.E lrJL'EPEfJI)EN-r S-rREArl FOR CONFLUENCE<~ .'
-----------------------------------------------------------------------------
-..---.------------------------------------------------------------------------
TO'TAL r~l'~IBER OF Sl'REAtlS =
CU!'JFUJENCE \'ALUES U:':;ED FOR IlWEPEI'WENT STREA~j 1 ARE,
l-I~IE OF C'ONC~~J.f.RATION(rIIN.) = 2'7.17
RAli~FALL Il~TEtJSITY(II~CH/HR) = 2.01
rOT;:,L ':::'TREMI Af<EA (ACHE3) = 622. U U
PEAK' FLOW RATE(CFS) AT CONF'LUENCE = 1747.04
~:~:.1:~:*~~::~:****~:~:*~:~****~:*******1:***~:*****~:~*~:*:~~:~;*~:***~~:**~:.~:*~:~:~::~*:~~:**~:~****~:*
F'LCJ~!: PRDCEE;\3 FI:~:Oi':1 NIJDE
31!5.00 TO f'.JODE
316.00 13 CODE = 21
--------------------------.-----------------...--.----------------------------.--.
'~}>RATIONAL METHOD INITIAL 3UBAREA ANALY3I3<<(<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
A3SUMED INITIAL SUBAREA L~IFORM
DEVELOPMENT IS SINGLE FAMILY (1/4 ACREl
Te = K*I(LENGTH**3l/(ELEVATION CHANGEl]**.2
INITIAL SUBAREA FLOW-LENGTH = 600.00
UPSTREAM ELEVATION = 1091.90
DOWN3TREAM ELEVATION = 1088.20
ELEWHIOtJ DIFFERENCE =, 3.70
l'C = .393*[( 600.00**3)!( 3.'70)]~:*.2 = 14.035
100 YEAR R?\INFALL INTEtJSITY<INCI-//HOURl = 2.[3(::9
SOIL CLASSIFICATION IS "8"
6\
23
I
I
I
I
I:
I:
I
I:
1
I
I
I
I
I
I
I
I
I
I
TOT':::'i~, '~"" ,"
;:::. dU
101AL hG~_li-'~:~L.~:~)
I. ::~:. U .~~
~;:f;'~~::!:~:~:~:*~::!:'~*:!:~:'!:~:~~~.~:~~~~~~;:~*i:**~~*'!:~:i::~*~*~:~:i:i:~~*~::~~::I.~:'~:1:'~1:~*:;:~:~1::1:~:'~i:~~:~}:\.~:!:"
FLOW PROCESS FROM NODE
316.00 TO r~O[)E
317.00 [::.=; CI.~fDE ::::
.3
~'~')>)'COMPUTE PIPEFLO~J TRAVELTlr1E 'l-~iRU SU8AREA<<<<~'
.. :)'USirJ~ (OMPUTER'-ESTI~!A'I'ED PIPESIZE (t~ON--Pf~ESSL:RE FLOW)~
----------------------------------------------------------------------------
----------------------------------------------------------------------------
rEi~TH OF FLOW I~~ 27.0 li'JCH PIPE IS 19.2 INCHES
PIPEFlOW VELOCITY(FEET/SEC.) = 6.0
1_'PS"fREAM NO~E ELEVA1"IOfJ = l088.20
DOWNS-rREAM NO['E ELEVA'frON = 1085.10
FLOWLENS'rH(FEE1') = bllU.llU MAN~JltJG'S rJ;::: .013
E:~~\TJr-1Art=~D i::-IF'E rqi~f"iETER I; Ir~CH) ;:;; 27.00 t4UitlBER OF Flr;'E::~;::: 1
PIPEFLOW l'~'IRll 2lIBAREA(C-rSJ - 18.0J
rF'iWEL TIi"iE'Nm.) = 1.,~":: TCir'lIN.) = [5.71.
~~:***~:*:~~:*;~~:**1:***~:*~::I:****i:*~:****~;********1;**~;**~;***~~*~;*~:**~:*********1;~;.~~;*~:
FLOW j~ROSESS FROM NODE
317.00 TO fKIDE
:317. (I (I I ~3 CODE =
~::
~,')'})')'ADDI'rION OF SUBAREA TO MAI!~LINE PEAK FLOW<<
----------------------------------------------------------------------------
--------------_._------------------------------------------------------------
100 YEAR RAlrJFA~L II~T.ENSI-rY(rNCH/HOl!R) ;::: 2.715
:::i() [L C:L.A,:;t:.JF:ICATICH'.j l~:; '1];;'1
SII~GLE-'FAMILY(1/4 ACRE LOT) RUtJOFF COEFFICIENT = .7'747
SL!B~F(EA AREACACRESJ;:;; 7.60 SLiBAREA RUNOFFCCFS) = 15.9:3
l"O'fAL AREA(ACRES) ;:::
T(.(~IIN) = 15.71
l~j. 60
TOTAL RUNOFF(CFSI =
34.02
~:***:~~;~:r:~:~~:;~*:t***~****~:******~.****;r********:~;~***;~:~*******;~:~**~*********;~*:t**
FLOW F:'ROl'ESS FRGr.! rJODE
:317.0U TO NODE
31'7.00 IS CODE =
1
':-:.::.:- [:E'~l I ;~~i;'!ATE:. I j-'4I::EF'Er"I[)E~4r fiTPEAM FOR CClNFLUENC:E -<::: <: ".' -:'
'"'.";,>>PIN[) CDr~1f~'UTE \"~~F:I()U~:::; C:O~~FLUENCED ~3TF:EAJ'"'1 VALUE~=;<<'.;"". "
----------------------------------------------------------------------------
-.---------------------------------------------------------------------------
'-OlAL rJUHBER OF STREAMS;:;; L
CONFLllENCE VALltES USED FOR INDEPENDE~l STREA~I 2 ARE=
TINE OF CONCENTRATIONIMIN.1 = 15.71
RAINFALL INTENSITY\INCH/HRI = 2.71
'rO'TAL STREAr1 AREA(ACRES) = 15.60
PEAK FLOW RA'rE(CF'S) AT' CONF'LUE~JC'E = 34.02
:~;~ COrJFLUENCE DATA :~*
SfREAN RUNOFF
I'JU~'.1Bl::~~: (CF:3)
1747.04
,::4.0:2
Tc
(rHN. )
2'7.17
1 :5.71
Ir'HEr6ITY
I HK:H/HOURi
.2. 0 O'~~
2. 71~5
e\F:EA
(ACRE)
622.00
1 ~5. 60
-'-
~~1:~*i:~:**~~:*~;~;~:~:~~:*~**i:***~;~:~.:~~;i;*wARrJI~JG**:~~:i;******~:1:*:1;:I:***~;~;:!;*:~**$:~1;i;~;~:*:~:
IN TH I :0:, c:ur'iPUTER F'F:()Cl~-;;Pf!':1 ~ THE C:Ot~FLUENCE VALUi:: U:3ED I S BASED
C~I THE RCF(~WC1' FOR~!UL~~ OF PLA']"E 0,-1 AS DEFAULT VALIJE. l"HIS FORMULA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
~:*~:~::!::l;i:1;:!;1:~.~:~~;'k;!;*;\;:k*~:**1;*i:**i:*****1;~:***:~*****~:***i;~:***~:~:*~;:~*:~**~::k**:~~;*~;***
RAltJi=A~L il~TENSI'rY AND 'Tlt1E OF CONCENTRA'fION RATIO
C011F~LL~E;'JCE FOR~'!UL~ ltE~b FGF~ ~ STF~E}~~!S.
,~
** PEAK FLOW RATE fABLE ..
STREAM RUNOFF Te
NUtlBEF: (CF:::i) (j"IIN. )
1 1044.05 15.71
I fnEri'3 I TV
I HKH/HOUFn
2.71':;
24
I
I
I
I
I
I
I
I
I:
I
Ii
..
.'
I
I
I
I
I
I
I
I
I
- . _....- ~.., I ___ _ _ '..'
'" '"
r.'-,L... ,....._.
'.-':"'...!_'- "'':'"
; L._
." ,=' ,'-~ ;- ,.::.
!' .L ' '~ .
~. ,1:-
~., "", ,_.. ,- . -. ,-' '-.' '. -
i ,_i I ...-".... ;-!",.C.-j", i- !_i'-L-::'
i';,:,"- . ."::.U
':;~:~::::'~.&'!'.~.~.::.!:.~;~~:*:~.!::!:*~~:~'*:~**'~.r.I';~
.'.:!-: ;:\; ;f: ;.::..., ::. .'." :c': ;.~: ;!: ;:: .~: :!.: :-:' .~; :.~: :.!.: :!.: :+: ;.!i >!., :-!.: ::: ':: ;~: ::: :~: ::: '.: .'.- ."
FLC'~J F'RCCESS FROM rJ(i~[
::i 1"/ ~ U I) Tel >10[:-[
J18.0l) IS COGE =
_..________________0________________________._________--------------------------
,"COt':~l!f~ FiF'EFLOW 'r'RAVELfI:~~ -r'~!F~lf Gli[~REA\~.-
", "..':.>i"':':::,T(.JC~ CCi;"iF'UTEF~:.-E::,l"Ir~ATE[) j::;'IFE:0;IZE (r.J;:iN...FF;:E.:;'::.~"U;:~:E F'LO~':) -:'
--------------------------------------------.----------------------------------
---------------,----------------_._-------------------------------------------
l)EF'fj-..i OF~ FL,y,; II'.~ l~~Ci~ Ci 1!,P::i-i FI~-"E I0; :<~\,,:t rUCHE.::-.
F"l F'Ef"""L.C:l:J \/ELCC I 'r-..,- (FEE T;, "::- Ei,.: ' ::.; ";::(.' ~ '_'j
10;31 ~ .:~:o
::.; t 071. .i. 0
i''':.:'~l!'-~;'~ I 1'~G '~:; !'~ :=
i:-::b "i' 1 ;-'!{:~ '[";::;:1"-' F'I FE. D 1 ,2',r-'~E rEr< .; I ;'.:I~-~'j..' ::.; 1. ~::o ~ (I (I
1772..22
lIF'S'Y'REAM j"JULiE ELEVA'l-ION =
I;C~c!~.J:::.,TF<Ei2.r_! ;'.:O[:-E ELf::"/H r' I u:-.~
FLOWLEj~G.ri~(FEET) ::.;
.7:'::0.. 00
. I).l :~I
r~!_~r"j:t:IEF;;
I~'F F" I F'E~. =
PIPEFLOW T~iRU SUBAREA (CFS) =
'rf~AVEl_ 11~~E(t'II~J~)::.; ~45
rc. (i'"j I i""J. > ::.;
-:,'7 ,~:-j
..:.. ! " '.-"-'
*~:**:~**~***~******:~******:~:~;:~*:~**;~~::I:*****:~*:~~*********************~:******:~**~
FLO~J f:~ROCESS ~F~OM NODE
318.00 IS CODE ::.;
:::
31::::. UO TO r~ODE
.------------------------------------------------.----------------------------
. '" ;->:::I~:I[:i[)Il.IC~j OF: ':::dJEIAF:EA TO i"!AlrILlr~E F'EA~::: FLOVJ(<"-:"
---.-------------------------------------------------------------------------
----------,------------------------------------------------------------------
100 YEAR RAINFALL .INTEtJSITY~lN('H/~iOUR) ::.;
:':";(1 I L C:LA',:.,'~i I F I Cr':' T I ON I :0:i .! B i!
CO~MEF~CiAL DEVELOP~!ErJT RUrJOFF
SUBAJ~EA Al~EA(AC:RES) - .uO
"O'I"AL AREA(ACRES) = 6J7~60
TCCMlrJ) = 27~63
1.9':; 1
COEFFICIENT = .~6~U
SUBAREA RUNOFF(CFS)::.; .uu
TOTAL RUNOFF(CFS) = 1772.22
t::::~****~:~:~**:~**:~***:~:~*******:~********;~*:t***************************~**:~:~:k~::~*
F~LC!~J PROCESS FRO~1 tJOlE
31:::.00 TO NO[.E
,:<1::::.00 I':' COVE =
1
,..------------------------------------------------------.----------------------
.' .:- ..:-.> VE:::, ll~;r-~H Tt:. I 1".JI:;EF'EJJDErJT :.::n"F,:E~~r-1 Fun CONFLUENCE <: -:.:-::
----.------------------------------------------------------------------------
----------------------------------------------------------------------------
'"['U l'f-~L 1'~C!i"IEiEf< CF- ::.; 'I r~:EI~I':I:::,::.; ..;..
CONFLUEI~CE VALLiES USED FOR II~DEPENDENT STREAM 1 ARE~
T'IME I:!F (Or~CEj.J-rRA1.IOrJ~~llrJ.) == 27.63
RAINFALL Il~TEI~SITY(INCH/HR) = 1.99
l-C']'AL STREAi1 AREA (ACRES) = 637.60
PE{l~::: FLC)~,'J F:ATE U:::F::=':-;) AT CONFLUENCE == 1772.22
~:~:*1:1:1:1:~:~::k~:~:*~~:~~$~:~:;~~:*:~*;~*:I:~I:****i:~:;I:~:**.~***:!:**~:*:~*~:*1:*;~***~:******1:;~*;~~:**~:**~:
FLOW PR~:ESS FRC~ NODE
:319.00 TO ~~::IDE
320.00 IS CODE::.; 21
--.---------------------------------------------------------------.---.----.---..
))PATIONAL METHOD INITIAL SUBAREA ANALYSIS{<' ,
----------------------------------------------------------------------------
--.--------------------------------------------------------------------------
ASSUMED INITIAL SUBAREA U!~IFORM
VEVELOF'MENT IS COMMERCIAL
TC = K*[(LENGTH**31/(ELEVATION CHANGE)]**.2
INITIAL SUBAREA FLC~-LENGTH = 550.00
UF'STREAM ELEVATION = 1082.90
VOWNSTREAM ELEVATION = 1079.60
ELEVATION DIFFERENCE = 3.30
TC = .3031:[( 550.00**3)/( 3.30)]*~:.2 = 10.522
100 VEAR RAINFALL INTENSITY I INCH/HOUR) = 3.384
tiOIL CLA:-::;SIFICATION It:\ jiB"
COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .~7~7
SUBAREA RUNOFF (CFS) = 2::::. 2~i
5'?J
Z5
I
I
--------.------------------------------.---------------------------...-
~
-
-
-
I
I
I
I
I
I
I
I
I
I
I
I
I
I
~;I;,~:~~:**~*~:**~:~~:t~~:~:~.~:~~::~~1;:I:
FLOW PROCESS ~RO~ NO[jE
::~*~:~*:~.~~:~::~~:~:A~:*~:1:i:!:~::.:l:~,~ "
.~*~:*~::I:,~:~*:::*:~:~;':.!:~:~
:320 ~ (I (I TO r~::I[.tE
32i.00 IS COfE =
"}))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<'
'>:>:>:> >U€l I ~JC-:i C:C)I'.'IPUTER-ES"r I t'"IA'fED F' IF'E:::i I ZE (t~C'r~",p~;:ES:::;UF\E FLCt")):"""
FLOW PROCESS FROM NODE
~====================:=======================================================
DEPTH OF FLOW IN JO.O IM:H PIPE IS 24.6 INCHE~
PIPEFLOW VELOCiTY(FEET/SEC.) = 6.6
UF)8TRER~1 NODE ELEVA1'ION = 1079.60
DOWNSTREAM NODE ELEVATION = 1076.70
FLOWLENGT}~(FEE1') = 550.00 MANrJING'S;J
E:':'TII'lATED F'IF'E DIA!"IETERIINCH) = :::0.00
F'IF'EFLOW THRU SUBAREAICFSl - ~~.25
TRAVEL TIMEIMIN.l = 1.40 TCIMIN.) = 11.92
= .01:3
NUMBER OF PIPES -
~~*~;****~;~:*******$**1:~:************$*~;****~*1:*i:*******~:**~:***i:*****i:**'~*****:~:
321.00 IS CODE =
.".
~~
~":
321 . (I (I TO J'.JO[)E
'::.
--))>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
----------------------------------------------------------------------------
-----,-----------------------------------------------------------------------
100 YEAR RAINFALL INTENSITY I INCH/HOURl =
eOIL. CLA~;SIFIC";:''1TION I:;::; 'ID"
COMMERCIAL DEVELOPMEN'r RUNOFF
3UE:APEA AF:EA (ACF~~E~::;) = ';,'. :2 I)
TO'fAL' AREACACRES) = 18.70
TceMINI = 11.92
:3.160
COEFFICIENT = .8776
SUBAREA RUNOFFCCFS) =
TOTAL RUNOFFCCFS) :
5:3.76
2~j. 51
*~******************************:~*******:~************:~**********************
FLOW PROCESS FRO~I NODE
J21. UO TO rKifE
~21.00 IS CODE =
1
. . ,))'DESIGrJA1"E IrJDEF~ErJDENT STF~EAM FOR CONFLUENCE<<<<\
'~}~').~AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<<
----------~~-----------------------------------------------------------------
----------------------------------------------------------------------------
-
TO'fAL NUMBER OF STREAMS = 2
CO!'~FLUE~~CE W\LUES USEr:, FOf( HWEPEfj[:;ENT
TIME OF CC~CENTRATION(MIN.) = 11.92
RAINFALL INTENSITYIINCH/HRI = 3.16
TOTAL STREAM AREACACRESI = 18.70
F'EAK FLOW RATEeCFSI AT CONFLUENCE =
e* CC~FLUENCE DATA **
STREAM RUNOFF
NUMBER CCFS)
1772.22
Tc
(tim. )
27. E.::\
11. 92
':;'lREAi'l
2 {2jRE ~
.~.
~jJ. 76
~:;3. 76
IrnUJ"'ITY
( INCH/HOUf~)
1.991
3.160
AF:EA
(ACREi
6:37.60
U::.70
*:f:****:~**~;*******~:**********~:****WARNING*********~:*******************~:~:**~:
IN THIS COMPUTER F'ROGRAM, THE CONFLUENCE VALUE USED IS BASED
Of'l THE RCFC:i,~'JCD FCif~r!ULA OF F'LATE D-l ~\3 f'EH';ULT W\LUE. THEi FOF:MUU,
WILL NCIT NECESSARILY RE3ULT IN THE MAXIMUM VALUE OF F'EAK FLOW.
*:~~;:n**~:**~:1:****:~***1:*******;~************i:***********~:*******~:***t**~;**~;***
RAINFALL INTENSITY AND TIME
CONFLUENCE FOF:rIULA USED FOf(
** F'EAI<
!3TF~EAP'1
NUMBER
1
FLot.J RIHE
F:UNOFF
(CFS)
::;:1::;:.34
1::::06.09
TABLE **
Tc:
<r1m. i
11.'92
27.6:3
OF
CONCENTRATIC~ RATIO
... STREI-\MS.
~
INTENSITY
( IrJCH/HOURI
3.11.:,0
1. 991
CiJMPUTEr:, CONFLUENCE ESiT I riA rES ARE Ati FOLLO~JS:
2'
,..,
...
I
I
,
I
J
I
J
-
I..
.;:.-
I
I
I
I
I
I
I
I
I
I
I
I
I[
; ,-r-;." '-"_*''1 ,,,,, _ .
"fOTAL ~RLA~ACRES) -
c-.:':;:;,>> .,:";u
*;~~*:~****:~****:t*:~~**~:************:~*:~**~**:~*****;~****:~:~************~:*:!:~****:~:~
FLOl:) pncrcE::~~; FF~OI"1 NOf.:E
321.00 TO NOVE
321. 00 l~~\ COVE = 1 (I
--.---.------------------------------------------------------------------------
j>>>>MAI~-STREAM MEMORY COPIED (~10 MENORY BANK g 2 "
"
. .'~
:=~==========================================================================
~:*****i;i,*~**:!:*~~:**~*~:**************i:**~;**~:*~:***~:****~;**********~:~;~:*****~:****
"
i
I
I
FLOW PROCESS FROM NODE
400.00 TO NO[>E
401.00 IS CODE = 21
-------..---------.----------------------.--------------------------------.------.
.'.~)).RATIONAL ME1-HOD I!~ITIAL SUBAREA ANALVSIS<<<<:
----------------------------------------------------------------------------
----------------------------------------------------------------------------
ASSUMED INITIAL SUBAREA L~IFORM
DEVELOP]~ENl IS SINGLE FAMILY (1/4 ACRE)
rc = !<:~: l (LENGiTj+~::t;:=.n ./ CELEVr::d-ION CI-H:i~~GE)] :1, ;':.: ,-;.
INITIAL EUBAREA FLOW-LENGTH = 800.00
LIPS'fREAM ELEVATION = 1126.00
I!OW~JS1'REA~1 ELEVATION = 1121.40
ELEVATI(~ DIFFERENCE = 4.60
Ie = ~.:i93*f~ :~:OO~UO:}::~::3)/( 4.60)J:-1::-I:.2 = 15.9t,::;:
100 YEAR RAINFALL INTENSITYIINCH/HOURI = 2.691
':,tjIL (LA:::;:~;IFICATIO~.1 J~=, "B"
:3:U~GLE'-FPd"IILY (.1 /4 ACFt:E LOT) F~U~.JOFF C()EFFIC:IENT == .7739
SUBAREA RUN6FF(C'FS) = 18.12
TOTAL AREA~ACRES> = 8.70 fOTAL RUNOFFCCFS) == 18.12
k
~~
E:?:'
r:'
:~~
;:.
******:~~:**~:***~:~:*~:~;***~*~~:*******~:*~****1;********************~;**************
FLOW PROCESS FROM r~ODE
401.00 TO nODE
402.00 IS CODE =
.3
--------------------------------.---------------------------.----------.-------
.~j>>DJMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
~>>>>USI~~ CCMPUTER-ESTIMATED PIPESIZE IN(~-PRESSURE FLOWI<<<"
.---.-----.--------------------------------------------------------------------
----------------------------------------------------------------------------
DEF)'rH Of~ FLOW I~J 27.0 INCH PIPE IS 19.2 I~~CHES
PIPEFLOW VELOCr-rV(FEET/SEC.) = b.U
Uf)Sl'REAM ~JODE ~LEVA1-ION = 1121.40
j)O~:JN~3TF:EAr-; NOr:>E ELE\.1AT I ON ~-: 1117. ~50
FLOWLENG1'H(FEE'f) = 750.00 MANNING1S N = .013
ESTIMATED PIPE DIAMETERIINCHI = 27.00 N~1BER OF PIPES = 1
PIPEFLOW THRU 2UBAREAlCFSl = 18.12
n;AVEL TINEIMIN.) = 2.09 TC(HIN.) - 18.06
~;~:****1:~;~**:~*****;~**:~*****~:**~;**:~**,~*:~*~::~***:~*******;!:***~;~;****~:~:******:~*****
FLOW PROCESS FROM NODE
402.00 TO tJCI[)E
402.00 IS CODE =
:;::
..--.-----------------------------------------------.-------.------------.-------.
//~>ADDITION OF SUBAREA TIJ MAINLINE PEAK FLOW<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL INTENSITYIINCH/HOURI : 2.515
:;:;OIL CLA:::;~\!FICATIOI'J IS "BI!
SIN8LE-FAMILY(1/4 ACRE LOTI RUNOFF COEFFICIENT = .7677
SUBAREA AREAIACRESl = 8.00 SUBAREA RUNOFFICFSl = 15.45
rOH\L A},EA (ACRE'31 = 16.70 TOTAL RUNOFF (CF'S) = 3'3.56
TCININI = 18.06
55
****:~***************:~*******************************************************
FLOW PROCESS FROM NODE 402.00 TO NODE 403.00 IS CODE = 3
>>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
>>>>>USING COMPUTER-ESTIMATED PIPESIZE (nON-PRESSURE FLOWI<<<<<
2.7
======:========================================================================
I
I
I
I
,
I
,
I
I
I
I
I
I
I
I
I
I
I
I
I
I
PIPEf~LOW VELC~iTY(FEE'r/SEC. l(i.~.
UPS"fREAM NODE ELEVATICIN = lL17.20
I~Ol~tJSTREAM ~~ODE ELEVAr'IO~J = 1109.50
FLOWLEI~Gl.H(FEE'r) = 550.00 MANtJlrJG'S N
E::::;TI~r(~""ED FIPE D.IAj'-r:::rEF~(lr~CH) ::: 27.00
PIPEFLOW THRU SUBAREA(CFS)::: 33.56
IRAVEL TIMEININ.l = .~2 TCCNIN.1 =
;;: . (l1:j
r'~Ur'mEf\ OF
PIPE:; =
1
l ::;: . ':.':::~
~:~:~**~.*****;~:~******~********:~*******~****~**************:~**:~:~*************:~*
FLOW PROCESS FROtl ~JO~E
40:3. UO TD j',~IJDE
403.00 IS CODE =
:::
\';->ADDI1'IC~J OF ~UBAREA "1"0 ~jAINLINE PEAK F'LOW(<-,:"
:~===::::::==:::===================================================================
.l (1) '{[~PjF\ HI~lr'~F.?'lLL Ii".lrEN::~nTY (INCH/HCUFO ::: 2.447
3CI1I_ C:LA'3~3IFICATI()N I::::; rrB'1
CCrlMERCIAL DEVELOPNENl RUNOFF COEFF'ICIENT :::: .8730
SUBAREA AREA (ACRES) ~ .00 SUBAREA RUNOFF (CFS) :::: .00
TOTi:.iL f~REA (ACF:E:~n:::: 16.7U TOTAL. F:Ur~OFF (eFt;):::: JJ. ~56
TCCMINl = 18.98
~:!::~~*:~********~~M*:~*:~**:~~**:~******:~******:~************:~*****************w***
FLOW PROCESS FROM NODE
403.00 TO NODE
1
40J.00 IS COIlE ::::
"~>?>r~ESIGNA1E IrJDEPE~JDEN-r STREAM FOR COrJFLUE~ICE<<<~'"
====~==::::==~=::::::::=========::::=====::::====~=::::::::::::::::=::::======::::==========================::::
rOT"HL rJL!~jBEF~ OF S"f"REAMS:::: ~
c:orJFLUENCE VALUES USED FOR Il~DEPENDENT STREAM 1 ARE:
'rlr--~E OF cor-JCEr'~TF\A'rIOrJ{Mlr'J. j:::: 1::::.'=:':::~
RAII'JFALL INTENSITY(INCH/HR):::: 2.45
l'OT'Al_, STREAM AREA(ACRESj = 16.70
PEAl::: F:-LO~\: R?"i TE (CF~'::.;) i~ T CO~~FLUENCE -= ~~r:i. ;:iE,
i:*~~:*~:~*~:~**~*:::~:~*~:~:*1:*****1:***~:***:~**~:*i:i:*****:l:****~****~*~:~~:*:~****:~**~:**~:~:
1,::., ",..1.1
,'LU.",
404.00 TO NOVE
7
PROCESS FROM NODE
404.00 IS CO[)E =
,,~)'j'USER SPECIFIED HYDROLOGY II~FORMATION AT NODE<<( ~~
----------------------------------------------------------------------------
-----.-----------------------------------------------------------------------
USER-SPECIFIED VALUES ARE AS FOLLOWS:
TC(~!IM) :::: 20.00 RAIN INTENSITY(INCH/HOUR) = 2.38
TOTAL AREA(ACRES):::: 40.00 TOTAL RUNOFF(CFS) = 100.00
*~:~~:~:~*****1:1:**~**~:~:*:~.~*********************************~:**~:**~:****~:****~:***
FLOW PROCESS FROM NODE
404.00 TO NO[)E
405.00 IS CODE =
:3
'~}COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<, ,
'}USING COMPUTER-ESTIMATED PIPESIZE CNON-PRESSURE FLOW)(((((
.N____________________________________________________------------------------
----------------------------------------------------------------------------
DEPTH OF FLC~ IN 48.0 INCH PIPE IS 39.0 INCHES
PIPEFLOW VELrn~ITY(FEET/SEC.) = 9.1
L:PSTREAM NODE ELEVATIO~J = 1122.70
DOWNSTREAM NODE ELEVATION = 1113.40
FLC~LENGTHCFEET) = 1700.00 MANNING'S N
ESTIMATEV PIPE VIAMETERIINCHI = 48.00
PIPEFLOW THRU SUBAREACCFSI = 100.00
TRAVEL TIMECMIN.1 = 3.10 TC(MIN.) = 23.10
:::: .013
NUMBER OF PIPES =
1
~
**~:*~:**~:*****:~******~:****~*******************~:**~:****~:**~:**********~::~*******
FLOW PROCESS FROM NODE
405.00 TO NOVE
405.00 IS CODE ::::
:3
--------.----.----------"--,----------------------------.----.----------.----------
28
}}}}}(1DDITIO!~ OF SUBAF;EA TO f'.1AI/',LINE PEAK FLm'J<<<<<
I
,
,
~
~
I
'I
I
,
I
,~;?
I
~-J
I
-
I
I ,"
I
I
I
';
I
I
I
I
I
I
10D fEAR RArj~FALL rl~TENSI-1-V~II~~:.~i/.iOUR) = 2.1~7
.:OIL CLAS~::iiFICATII~.tj I:; "81>
8INGLE-FAMILYll/4 ACRE LOTl RUNOFF COEFFICIENT = .7547
SllBAREA AREA(ACRESJ = 19.00 SUBAREA RUNOFF (CFS) = 31.50
TOTAL AREAIACRESI - 59.00 TOTAL RUNOFFICFSI = 131.50
TC(I''IlNi = 2:3.10
**********:~**************************:~**************************************
FLOW PROCESS FROM NODE 405.00 TO NODE 405.00 IS CODE = 1
)))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<<
)))))AND COMPUTE VARIOUS CC~FLUENCED STREAM VALUES<(<<<
----------------------------------------------------------------------------
_________________w___________________________________________________________
TOTAL NUMBER OF STREAMS = ~
CCfjFLUaKE W;LUE:::' U:::'ED FOf~ IrWEPENVENT :~'TRE~\I'I 2 ARE:
TIME OF CONCENTRATIONIMIN.) = 23.10
RAINFALL INTENSITY(INCH/HR) = 2.20
TOTAL STREAM AREAIACRES) = 59.00
PEAK FLOW RATECCFS) AT CONFLUENCE = 131.50
~)
.. CONFLUENCE DATA ..
Sl"REAM RUNOFF
NUMBER (CFS)
1. :]:3.56
..:.:. 1 :31.. 50
fc
111IN. )
1 ::::. ':t;::
23.10
I NTEn::, I T'i
( INCH/HOUR)
2.447
2.197
A REf,
(ACREI
16.70
5',.00
;~***t:~~;********~;*******:~********tWARNIN~**********************************
IN THIS COMPUTER PROGRAM, THE CONFLUENCE VALUE USED IS BASED
ON THE f~CFct"t~CV FORt,IULA OF PLATE V-I A:::' VEH\ULT VALUE. THE' FOf~t'1ULA
1,.ilLL NOT NECE3:::i?\FUL Y RE'3UL T IN THE W\X I~JUM VALUE OF PEAK FLO\".
********~;*t***1:t******************************~:***************************
RAINFALL INTENSITY ANV TIME OF CONCENTRATION RATIO
('ONFLUE~JCE FORMULA USED FOR ~ STREAMS.
* * F'EAl<
'~'TREAt1
NU~1BEF:
1
FLO\" RATE
RUNOFF
(CF'31
141.60
161.62
TABLE "'"''
Tc
INTENSITY
I INCH/HOUf~1
2.447
2.1'n
(rHN. )
IS. 9::;:
23.10
...'
COMPUTED CONFLUENCE
pEAK FLOW RATEICFSI
TOTAL AREAlACRESI =
EST I MATE'3 AF~E
= 161. 6:2
75.70
AS FOLLO\>JS:
Tc (MIN. 1 =
:2:3. 1 I)
****************************************************************************
FLOt'J PROCESS FRO~I NODE
406.00 IS CODE =
:3
405.00 Tel NCIV[
>))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
>))))USING COMPUTER-ESTIMATED PIPESIZE lNON-PRESSURE FLOW)<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 51.0 INCH PIPE IS 36.2 INCHES
PIPEFLOW VELOCITYlFEET/SEC.) = 15.0
UPSTREAJ'f1 NO[)E ELEVAT I ON = 1109.50
VOWNSTREAM NODE ELEVATION = 1102.90
FLOWLENGTHIFEET) = 470.00 MANNING'S N = .013
E'3TINATEI:> PIPE DIAMETER CINCH) = 51. 00 NLWIBER OF PIPES =
P I PEFLO~J THRU SUBAREA (CFS 1 = 161 . 62
TRAVEL TINElMIN.) = .52 TCIMIN.I = 23.62
1
sl,.
****************************************************************************
~~
FLOW ,PROCESS FROM NOfJE
406.00 TO NODE
406.00 IS CODE =
c:
, ----------------------------------------------------------------------------
-----------------------------------------------------------------------------
,
I
"
~
I
I
i
,
I
,
I
I
"
,
I
,
I
I
I
I
I
I
. ,">ADDITION OF SUBAREA TO MAINLINE PEAK FLOW,,'
1 (I I) \" EAR RA I !'~FALL I r jTE~.I~~d r.r' \ I ~:CH / HOUF(I =
SOIL CLA'3~3IFICATIClN IS IIBII
COMMERCIAL DEVELOP~IErJ-r' RUNOFF
SUBAREA AREAIACRESI = .00
"rOTAL AREA(ACRES) = 75.70
TCININI = ~~.b~
2.17(1
COEFFICIENT = .8707
SUBAREA RUNOFFICFSI
TOTAL RL~OFF(CFSI =
= .00
161 . 62
'..
>,
*:~;~::::~:~**:~********~***********************:~*******~**************************
~-
~,
(
f
f'
FLOW PROCESS FRO~I NO~E
406. (10 TO Nor~E
406.00 IS CODE =
1
'>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE{{{{{
-----------------,-----------------------------------------------------------
----------------_._----------------------------------------------------------
T01"AL NU~IBER OF STREA~!S = L
CONFLUENCE VALUES' U'3ED FOR I NDEF'ErWENT STF:EAM 1 AF~E:
TIME C~ CC~CENTRATIC~IMIN.1 = 23.62
RAINFALL INTENSITYIINCH/HRI = 2.17
TOTAL STREAM AREA (ACRES) = 75.70
PEAK FLOW RATEICFSI AT CONFLUENCE = 161.62
~..
~.:
~l
~:::
~$~'
1:***********:~~***~:*********~:****~:*******~i:*************************~:********
FLOW PROCESS FROM NODE
408.00 IS CODE = ~1
407.00 TO NODE
>>>>}RATIC~AL METHOD INITIAL SUBAREA ANALYSIS<<{{{
----------------------------------------------------------------------------
--------~~-------------------------------------------------------------------
~~:
A:3<,'Ut1ED INITIAL '3UBAREA UNIFORM
DEVELOPME~r IS SINGLE FAMILY 11/4 AC~E)
TC = K.[ILENGTH..3)/(ELEVATIC~ CHANGEI]*..2
INITIAL SUBAREA FLOW-LENGTH = 770.00
UPSTREAM ELEVATION = 1114.70
DO(4t6TREAi1 ELEVATIOi'j = 1110.20
ELEVATlor,J DIFFERENCE = 4.50
rc = .:)93*[( 770.00**3)/( 4.50)J~::~.2 = 15~675
100 YEAR RAINFALL INTENSITYIINCH/HOURI = 2.718
SO I L, eLM::;:"::;} F I CAT I DrJ IS" 8"
SINGLE-FAMILYl1/4 ACRE LOT) RUNOFF COEFFICIENT = .7748
SUBAREA RUMJFFICFSI = 18.53
TOTAL AREAlACRESI = ~.~u TOTAL RUNOFF (CFSI = 18.53
**********************1:*******:~*********************************************
FLOt,lJ F'R()CE~;S FROM NODE 40::::.00 TO NODE 409.00 IS CODE:: ::.3
>>>>>CONPUTE PIF'EFLOW TRfWEL TI/'fIE THRU SUBAREA< < <<<
," >>USING COMPUTER-ESTIMATED PIPESIZE (NC~-PRESSURE FLOW){{{{{
---------------------.-------------------------------------------------------
------_._--------------------------------------------------------------------
DEPTH OF FLrn~ IN 27.0 INCH PIPE IS 19.2 INCHES
PIPEFLOW VELOCITYlFEET/SEC.1 = 6.1
UPSTREAM NCWE ELEVATION = 1110.20
DOWNSTREAM NODE ELEVATION = 1106.40
FLOWLENGTHIFEETI = 700.00 MANNING'S N = .013
ESTI /'f1A TED PIPE DIAMETER I INCH I = 27. 00 NUMBER OF P I PES = 1
PIPEFLOW THRU SU8AREAlCFSl = 18.53
TRAVEL TIMEIMIN.1 = 1.91 TCIMIN.1 = 17.58
********************************~:********~:**********************************
Fl,O\>J PROCESS FROM NODE 409.00 TO NODE 409.00 IS CODE = 8 &
>>>>>Ar:'DITION OF ~3UBAREA TO MAINLINE F'EAJ< FLOW<<<<<
===~~~=~~~~=~~;~;~~~=;~~~~~;~~~;~~~;~;~~~=:==;~;.;.;=========================30
I
,
,
I
,
~ ----------------------------------------------------------------------------
I
I
,
.,
I
I
-
I
I
I
I
I
I
I
I
I
I
I
I
3INGL~...F.~MIL{(lj4 ACRE
~l!PAREf~ ~RE~{ACRES}
TOTAL AREACAC.RES> -
TCINI~) = 17.~8
L01") RlJtJ()F:~ C0~FFICl~r~i' = .7630
7.90 SlI2ARE~ RUNOFF<CFSJ =
16.70 fOTAL RUNOFF(CFS) =
1:5 ~ ::; J.
,34.04
*~*:~********************************:~:~**********************************:~*:~*
FLOW PROCESS FROM ~ODE 409.00 TO NODE 409.00 IS CODE = 1
>)))>DESIGNATE I~DEPE~DENT STREAM FOR (ONFLUE~CE<<<<<
)) >) )AIW COMPUTE VAR I OUS Cot~FLUENCEf> '3TREAM VALUES< < < < <
-----.-----------------------------------------------------------------------
-----,-----------------------------------------------------------------------
TOTAL t~UMBER OF STREAM':i = ~
COIJFLUENCE 'iALUES U'3ED FOR Il'.IDEPEtJDEtrr
TIME OF CONCEtHRATIONINIt~.) = 17.53
RAINFALL INTENSITYIINCH/HR) = 2.55
TOTAL STREAM AREAIACRES) = 16.70
PEi~:< FLCvJ RATE ICFS) AT CONFLUEI.JCE =
'::;TREAt.1
2 AF-:E::
::<4.04
** OJNFLUENCE DATA **
STREAM RUNOFF
NUMBER lCFS)
J. 161.62
:2 34.04
,
,
e::
t~
Tc
lt1 II';. )
INTEN::o;ITY
I INCH/HOUR)
2.17tJ
AREA
lACRE)
75.70
16.70
23.62
17.5::;:
2. ~~~52
~;***~;:!::~**~:~:**~*******~:1:**********WARNING******~:**********~:****************
m THEi CCir1FUTEF: F'ROGRAi"I, THE CONFLUEt~CE VALUE U'3E[) E, BI~SE[)
ON THE RCFC&WCD FORMULA OF PLATE [:i-I AS DEFAULT VALUE. THIS FCRMULA
l.oJILL I'KiT NECESSilRILY F,ESUL T IN THE 11AX IMUI'1 VALUE Of~ PEAK FLOvJ.
~::~****~:*******1:*******:~t*~**;~***********1:*********~:*:~*********~:*~:**;~*****~:
liAmFAL-L mTENSITY AND' TItlE OF CONCENTRATION PATIO
COt~FLUEtKE FORt1ULA U'3ED FOF( 2 smEAMS.
;'..
,,'" PEm<::
'~;TRU1M
NUr18ER
1
FLOW RATE
f~UNOFT
( CF,:n
1 ~54. ::f4
190.57
TABLE **
Tc
IMm.)
rrnENSITY
lINCH/HOUR)
17. ~;:=:
2.552
..~,
.,
2:3.62
2.170
COMPUTED CONFLUENCE
PEAK FLOW RATElCFS)
TOTAL AREACACRES) =
E'::iTH1ATE:3 ARE A::Oi FOLLCt'JS:
= 190.57 TcCNIN.) =
92.40
2:3.62
****************************************************************************
FLOW PROCESS FROM NODE
409.00 TO tJODE
410.00 IS CODE =
::i
,. >))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
, ' , , )U'3rr~G COMPUTER-ESTIMATED PIPESIZE lNON..PRESSUliE FLO~J) <<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 54.0 INCH PIPE IS 33.7 INCHES
PIPEFLOW VELOCITYlFEET/SEC.1 = J.5.6
UP'3TREAN NOPE ELEVATION = 1102.90
DOWNSTREAM NODE ELEVATION = 1096.30
FLOWLENGTHIFEET) = 470.00 MANNING'S N
ESTIMATEf> PIPE PIAMETERCINCH) = 54.00
PIPEFLO~J THRU SUBAREA(CF::o;) = 190.57
TRAVEL TIMECMIN.) = .50 TCCNIN.) = 24.12
= .01:3
NUMBEFi OF PI PE'::i =
1
~
*************************i**************************************************
FLm.J PROCESS FROt'l NODE 410. 00 TO NOPE 410. 0 (I I S CODE = ':'
----------------~----------------------------------------------------------31
>))>>ADDITIO~J OF SUBAREA TO MAINLINE PEAK FLOl.J<<<<<
I
\
,
I
i
I
')
,
,
I
"
,
,
I
I
I
I
I
I
I
I
I
I
1. (II)'{EAF Ph I NF ALL I l' rrEt' J~::d T'( ~ I NC H/ HCUF~; = :.2. 14~1
~l;J 1 L CLA'-;.'--; I FICA T I ct\'~ 1:3 'I E< II
COMMERCI~L DEVELOPMENT RUNOFF COEFFICIENT = .8705
'oiU8AREA AREA i ACRES) = . 00 :3UBAF:EA RUNOFF (CF:::' I = . 00
TOTAL ~REA(ACRES) = 92.40 TOTAL RUNOFF(CFSI = 190.57
TCiMINI = 24.12
~**:~***************~*************:~*:~***********:~****************************
FLOW PROCESS FROM NODE
410.00 TO NODE
410.00 IS CODE =
1
.----------------------------------------------------------------------------
j))))DESIGNATE INDEPENDENT STREAM FOR COM=LUENCE(<< , '
----------------------------------------------------------------------------
----------------------------------------------------------------------------
J'O"f-AL NU~IBER OF 51"REAMS = ~
CONFL.UENCE VALUE'3 U'3EI:> FOR HWEPErWENT STREAl"1 1 AF:E,
TIME OF CONCENTRATION(MIN.) = 24.12
RAINFAL.L INTENSITYlINCH/HRI = 2.15
TC)Tt-\L ~3Tr~EAr-1 AF:Ef~ (ACF~ES);;;; 92.40
PEAK FLOW RATEiCFSI AT CONFL.UENCE = 190.57
.1:*:~***1:**************i:********************************************,~*********
FLOW PROCESS FROM NODE
411.00 TO NODE
412.00 IS CODE = 21
-----.-----------------------------------------------------------------------
)))))RATIC~AL METHOD INITIAL SUBAREA ANALYSIS<((((
----------------------------------------------------------------------------
-----------------_.~---------------------------------------------------------
ASSUMED INITIAL SUBAREA UNIFORM
DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE)
TC ~ K:~[(LENGTH**3)/(ELEVATION CHANGE)]**.2
INITIAL SUBAREA FLOW-LENGTH = 770.00
~~STREAM ELEVATION = 1107.60
DOWNSTREAM ELEVATION = 1103.10
ELEVATION DIFFERENCE = 4.50
ore;;;; ~393*r( 770.00~:*3);( 4.50)]**.2;;;; L5.675
100 YEAR RAINFALL INTENSITYlINCH/HOURI = 2.718
'o,OIL CLA:3',.IFICATION 1:3 "B"
SIM]LE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7748
SUBAREA RUNOFFCCFS) = 21.06
TOTAL AREA (ACRESl = 10.00 TOTAL RUNOFFlCFSI = 21.06
::j
:~:~~::~****:k:~*******~:~:*******~:************.****~:****************~***~****:~**~:*~:~:
FLOW PROCESS FROM NODE
412.00 TO NODE
413.00 IS CODE =
::':1
--..----------.----.--------------------.---.-.------------...-----.------------------
}))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((<
",)USING COMPUTER-ESTIMATED PIPESIZE lNON-PRESSURE FLOWI(((<(
----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 27.0 INCH PIPE IS 21.5 INCHES
1=' I PEFLOv) VELOC I TY l FEET 1 SEe. l = 6. 2
UPSTREAM NODE ELEVATION = 1103.10
DOWNSTREAM NODE ELEVATION = 1099.30
FLOWLENGTHlFEET) = 700.00 MANNING'S N = .013
ESTI1'lATEI:' PIPE DIAMETER (INCH) = 27.00 NUMBER OF PIPE::;' = 1
?IPEFLOW THRU SUBAREAlCFS) = 21.06
TRAVEL TIMElMIN.) = 1.88 TClMIN.) = 17.55
********1:*******~:******************~******~*********************************
FLOW PROCESS FROM NODE
413.00 TO NODE
413.00 IS CODE =
:3
--;;;;;~~;~~~~~-~;-~~~~~~~-~~-~~~~~~~~-;~~~-;~~~~~~~~----------------------(;0
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.554
'='OIL CLASSIFICATION IS "8"
~T~'~l C_COMTI V/1 fA a~~~ I nT\ RII~n~~ rn~~~TrT~NT = _7~q1
32
~ .ee**************.******************~.**********.**.****_.**.********.*****.
I
I
-
I
-
,
-
I
I
I
I
I
I
I
I
I
I
I
I
FLOW F~0:ESS FROM M)~E
417.00 TO ~'JOf:E:
417.00 IS (O~E =
1
> > > > > VEt' I '-',NATE IrWEPErWEfl f ,:.,n':EAr-l FOR CUfJFLUaKE< < < < <
>>>>>AI'W CCI/'JPUTE VAF(IOU'3 CONFLUENCEV STREAM VALUE::3<<<<<
==:::::::::: ==::::::::: ====::: ==:=::: ==:::::: ==::::::::: =::::::::: ==::::;:::::::::::::::::::::::::::::;::::::::::::::;::::::::::::::::::::::: =:::=::::::::::::::::::::::::: ==:::: ==:::: = ==::::::::::
rOTAL rJUMBER OF '3TF(EAMS = 2:
CONFLUErKE '/iiLUES If;:EV FOF~ rrn:-EPEflVErH
TIME OF CONCENTRATIONIMIN.) = 19.26
RAINFALL INTENSITYIINCH/HR) = 2.43
TOTAL :3TF:Ei',M t~REA (ACF:ES) = 2:=:.30
PEAK FLOW RA1"[(CFS) ~T ((INFLUENCE ::::
::d'F':EAf'I
2 AF(E,
r.
52.24
.- CDNFLUENCE VATA _.
STREAM Rl~OFF
NUr-1BER (C:F:3)
1 221. ',,:,e;
:2 52..24
I rHEfJti I TY
I mCH/HOUR)
2.113,
2.427
AREA
(ACRE)
110.70
Tc
UHN. )
24.7:::
19.26
.:.:.
~?
......
:2:3. :::0
~,~~;t***t*******~:************~:****WARNING**********~:***:~***********~:*:~*****
IN THI3 COrlPUTER F'ROCiI":AI1, THE CONFLUENCE VALUE USEV IS BASED
011 fHE RCFC:HK:[) FORtlULA OF PLATE (:'-1 AS (:'EFAUL T VALUE. fHr::, FORt'lULA
,.JILL NOT NECE~'''''f;RILY RESULT IN THE r'1AX IMUM VALUE OF PEAl< FLOf'i.
*;~*:~**~:********:~********:~****:~************~*i:******************~:**:~*******
RAINFALL INTENSITY AND TIME OF CONCENTRATI~~ RATIO
CONFLUENCE FORMULA USED FOR _ STREAf'lS.
'" '" F'EAJ<
"iIRE,;tl
NUMBEF:
1
FLO"J RATE
F:UNOFF
(CF:;::)
TABLE **
Tc
\tlH<. )
INTEN,.3ITY
( mCH/HOUR)
2.427
2.113
224.78
267.44
1'3. 2;~:,
24.7:3
,~
COr'lF'UTED CONFLUEriCE
PEAl< FLOW RATEICFS)
TOTt;L AREAIACT':ES) =
Et'TIrIATE,,' ARE
= 267.44
1:)9.00
AS FOLLot'JS:
Te'11m.) =
24.7:3
**:~*****:~******************:~************************************************
FLOW PROCESS FROM NODE
41:=:.00 IS CODE =
::1
417.00 TO 1Wf'E
~}>>>COMPlITE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
>>>>>USINCi COMPUTER-ESTIMATEV PIPESIZE INON-PRESSURE FLOW)<<<<<
--"~-------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 60.0 INCH PIPE IS 44.6 INC~ES
PIPEFLOW VELOCITYIFEET/SEC.) = 17.1
UP'~iTF,EAM 1mf'E ELEVAT I ON = 10:::7.40
DOWNSTREAM NODE ELEVATION = 1076.20
FLOWLENCiTHIFEET) = 7:=:0.00 MANNING'S N
ESTIMATED PIPE DIAMETER(INCH) = 60.00
PIPEFLOW THRU SUBAREAICFS) = 267.44
TRAVEL TIMEIMIN.1 = .76 fCIMIN.) = 25.54
= .01:3
NUMBER OF PIPES =
1
*******************:~********************************************************
FLot'J PROCESS FROM NOVE
41:3.\J0 TO NODE
41:3.00 IS CODE =
:::
--;;;;;~;;;~;;~-;;-~~~~~~~-~~-~~;~~;~~-;~~;-;~;~~~~~~----------------------'"GP\
============================================================================
100 YEAR RAINFALL INTENSITYIINCH/HOUR) =
'30IL CLASSIFICATION IS "8"
CO~IMEHCIAL DEVELOPMErH RUNOFF COEFFICIENT
2.0T"
35
= . 86'38
I
I
I
I
I
I
I
'"'j
-
I I
'I
I
I
I
I
I
I
I
I
I
I
"_'_"_' -.,. .,_..., ,"1. ._..,
l"OTAL AREA~~CRES) =
TC.(MIfJ) = 25.54
l.:;.";'.OO
':'i~I'rAL RUNOFF (CFS) = 267.44
**********;~**:~*********************************************:~******;~**:~******
FLOW PROCESS FROM NODE
41:=:.00 TO tJOf:E
418.00 IS CODE =
1
>>>>)DESIGNATE INDEPENDE~r STREAM FOR CONFLUENCE<<<<<
----------------------------------------------------------------------------
MM___________________________________________________________________________
TOTAL NUMBER OF STREAMS = 4
CONFLUEtJCE VALUES U'~iED FOFi INDEPENDENT :3TREAM 1 ARE:
TIME OF CONCENTRATIONCMIN.) = 25.54
RAINFALL INTENSITYIINCH/HR) = ~.U~
T01"AL STREAM AF~EA(ACRES) = 139.00
F'EAK FLOl.:J F\:ATE (CFS) AT CONFLUENCE = 267.44.
$~:~:i:*****~:**;I:*~;*i:***~:***:~******~****;~***************~***************~*****~:~:
"
FLOW PROCESS FROM NODE
419.00 TO NOOE
420.00 IS CODE = 21
~;j,
.;..:.
:-:.
.~.
)>)>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<<
----------------------------------------------------------------------------.
----------------------------------------------------------------------------
A'3SUI'iEO I NIT I AL ':';UBeiREA Ul'~ I FOF:I',1
DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE)
Te = K*[(LENGTH**3)/CELEVATION CHANGE)]**.2
INITIAL SUBAREA FLOW-LENGTH = 1000.00
UPSTREAM ELEVATION = 1091.40
DOWNSTREAM ELEVATION = 1085.70
ELEVATION DIFFERENCE = 5.70
n: = .393*[( 1000.00**3)/( 5.70)]**.2 = 17.489
100 YEAR RAINFALL INTENSITY lINCH/HOUR) = 2.560
SOIL CLA:;~3IFICATION IS "B"
SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7693
SUBAREA Rl~OFF(CFS) = 29.54
TOH\L AREA (ACRE:;:,) = 1~5. 00 TOTAL RUNOFF (CFS) = 29.54
F:::
i"
I
, ,
r
i'
;
!
r
[
"
v
***~:****~:***~:~;~;**********1;***~:********~:**********************~;**************
FLOW PROCESS FROM NODE
420.00 TO NOPE
421.00 IS CODE =
:3
'>)>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
>)))>U'3ING cor,'/F'UTER-'E':nI~IATED PIF'ESIZE (NCitJ-PRE'=;SURE FLot,n <<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 33.0 INCH PIPE IS 22.5 INCHES
PIF'EFLO\') VELOCITYIFEET/:;:'EC.) = 1;;,.';/
UPSTREAM NODE ELEVATION = 1085.70
DOWNSTREAM NODE ELEVATION = 1081.70
FLOWLENGTHIFEETI = 750.00 MA~~ING'S N = .013
ESTIMATED PIPE DIAHETER(INCH) = 33.00 NUMBER OF PIPES = 1
PIPEFLOW THRU SUBAREA (CFSI = 29.54
TRAVEL TIME(MIN.1 = 1.82 TC(MIN.) = 19.31
;,"
~"
*******~:****1:****~;*****~*********~:***~:~;*********~:****i:******************~;***
FLOW PROCESS FROM NODE
421.00 TO NOf)E
421.00 IS CODE =
:3
)>))>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
=================:===========================================================
100 YEAR RAINFALL INTENSITY i INCH/HOURI = 2.424
:;:iOILCLA~;SIFICATION IS "B"
SINGLE-FAMILY(l-ACRE LOT) RUNOFF COEFFICIENT = .6827
S,UBAREA AREA(ACRES) = '11.'-'0 SUBAREA RUNOFF(CFS) = 19.03
TOTAL AREA (ACRES) = 26.50 TOTAL RUNOFF (CFS) = 4:=:.57
TCCMH~) = 19.31
r;v
3'
I
"
~
I
,
','
I
I
.I
I
I
,
I
I
I
I
I
I
I
I
I
I
I
.~:~.~**~*~::~:~:~~:*:~;~***:~*~:~:~.~:~:~:l:**.:'}
:.;!~.':~:I:.~:~*:t**;V:~~:~:::~.t:_~:~*:~.t:~;!:.r:~~*~:~.~;;:~
FLOW PROCESS FRO~1 rJODE
...j.:;~ 1.. (I (I TO ~JCJl.:E
421.00 IS CO[E =
1
...----------------------------------------------------------------------------.
........ .," :> >DESI ::.;t~A TE I r,JDEF'ErJDE~JT ~,TF;:EAi1 FOR CDi'-IFLUErJC E <: ':,,':: .:' ,"
" " " ,,>AN[) COMF'UTE VA}~:IOUS CONFLUEI'K:ED '3TREAI'1 Vf~LUE:::i< < < < <
==:=======~==================================================================
TOTAL NLit'IBER OF :3TREAI1S = 2
CDrJFLUENCE '/ALUE'3 US'ED FOH Il'WEF'ErJVErrr :::'TREAI~1 2 i~F(E,
rI r-1E 0," Cor,JCENTF:A T I ON <r>1f N.} = .t 9. 3.t
RAINFALL INTENSITYIINCH/HH) = 2.42
TOTAL STREAM AREAIACRESI = 26.50
PEAK FLOW RATElCFSI AT CC~FLUENCE = 48.57
:~* CONFLUENCE DATA **
Sl"REAM RUNOFF; Tc
NU~iBER lCFS) (MIN. )
1 267.44 25.54
INTEr-JSITY
( H,JCH/HOUR)
2.0'79
AREA
lACRE}
139.00
4:3.57
19.31
2.424
26. ~iO
~;*********1;*********************~:WARNING******************************:~***
IN THI'3 CO~lPUTER F'ROGRAt'1, THE CONFLUENCE VALUE U~;En 13 BASEn
ON THE RCFC:H4CI:> FOR~:ULA OF PLATE [:"-1 A'3 DEFAULT WiLLiE. THIS FORr'IULA
WILL NOT NECE3SARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
~*~***********i;******i:*****~:******************i:***********************i;***
~$.
~
RAII'WALL I1'JTEN'3ITY Am) TIME OF CONCENTRATION F:ATIO
CCit'JFLUENCE F-CRtIULA USEr> FOfi ,,: S,TREAMS.
* ;~: PEAK
:,:,mEAI"I
NUMBER
I
FLm4 R?HE
I,UrJOFF
{CFS)
2~50. 7f:,
:30.....1. O:~:
TABLE **
Tc:
(MIN. )
1 '=}. 31
,
.,:...
25. ~;4
I ~JTENS I TY
( INCH/HOUR)
2.424
2.07':;
cor'IPUTEI:' COI'JF'LUEtJCE
PEAK FLOW RATE(CF3}
l"OTAL AREA~ACF~ES) .-
EtiTI1'"'IATE:::. Ar,E
;;:: 30''9.0:3
16~;. ::;0
A':::' FOLLOi%:
Tc: (l1I1'~.) =
25.54
******;~**********************:P************************~*********************
FLOW PROCESS FROM NOVE
421 . 00 TO NO[:'E
421.00 IS CODE =
1
.---------------------.-------------------------------------------------------
>>>>>VES;IGWHE HJVEPENDENT STREI-itl FOfi CCNFLUENCE<<<<<
============================================================================
TOTAL NUMBER OF STREAMS = 2
CmWLUErJCE VALUES U'3ED FOR rrWEPENDENT STREAr,1 .t A},\E:
TIME OF CONCENTRATIONCMIN.1 = 25.54
RAINFALL INTENSITYIINCH/HR} = 2.08
TOTAL STREAM AREA(ACRES} = 165.50
PEAK FLOW RATE(CFS} AT CONFLUENCE = 309.08
:....:..
**********$****~**************~;***********~:********i:***1;********************
FLOW PROCESS FROM NonE
422.00 TO NODE
422.00 IS CODE =
7
--------------------------------------------------------------------------_.-
>>>>>USER SPECIFIEr> HYOROLOGY I1'JFOm'lATION AT NODE<<<<<
============================================================================
U'3ER-'3PECIFIE[) VALUES ARE AS FOLLmJS:
TClMINI = 25.00 RAIN INTENSITY I INCH/HOUR) = 2.10
TOTAL AREAIACRES} = 113.00 TOTAL RUNOFFICFSI = 293.00
(p~
****************************************************************************
FLCM PROCESS FROM NODE 422.00 TO No[)E 423.00 IS CO[:'E =:3 '37
I
)
i~
-
I
-
I
I
I
I
I
I
I
I
I
I
I
I
I
I
. .' .' '_'__',,, ,_"..... , .0.' ....., l....'_'" "'.,., !._'_ .. -,.
":. ':. ':. '> >US I r~l::.-i COl'"IPUTER-'E:3T 1 r!ATEf1 F' I ;::'E:::-; 11=.:'::.
",1"..-"'-
",:::..iht~. t':LU(.:jj.:
----------------------------------------------------------------------------
-----------------------------------------------------------------------------
DEPTH OF FLOW I~J 75.0 INCH F'IPE IS 5~i.9 I~IC'HES
PIPEFLOW VELOCITY,FEETi3EC.) = 11.',:/
UPSTREA~I NOVE ELEVAT I or; = 10'::'6. 10
DOWN3TREAM NOVE ELEVATION = 1076.20
FLOWLENGTHIFEETI = 1900.00 MA~~ING'S N = .013
ESTIMATED PIPE DIAMETERIINCHI - 75.00 NUMBER OF PIPES = 1
PIPEFLOW THRU SUBAREAICFSI = 293.00
TRAVEL TIMEIMIN.I = 2.65 TCIMIN.) = 27.65
~:**~:$**********~:********************~**************************************:~
FLOW'PROCESS FROM NODE 423.00 TO NODE 423.00 IS CODE = -
-----.-------------------------------------.----------------------------------
>))>)AVVITION OF SUBAREA TO MAINLINE PEAK FLOW(((<(
----------------------------------------------------------------------------
----------------------------------------------------------------------------
1.990
100 YEAR RAINFALL INTENSITY I INCHiHOUR) =
~iOIL CU-\'3SIFICAlION E< "B"
COI1MERC I AL [:'EVELOF'~1ENT RUiKiFF
SdJBAHEA AF:EI~ (AC:HE::n = .00
TOTAL AREAIACRESI - 113.00
TeININ) = 27.65
COEFFICIENT = .8690
SUBAREA RUNOFFCCFS)
TOTAL Rl~OFFICFS) =
~*
=:; .00
29:3.00
*****************;~**********************************************************
FLOW PROCESS FR(~ NODE
4~::3; 00 TO NODE
423.00 IS (:ODE =
1
.-----------------------------------------------------------------------.-----
))>)>~ESI6NATE INDEPENVENT STREAM FOR CONFLUENCE(<<((
)))))AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES(((((
----------------------------------------------------------------------------
---------------------.-------------------------------------------------------
TOTAL NUI~[<ER OF '3TREAMS = :2
CONFLUENCE VALUES USEV FOR INVEPENDENT STREAM 2 ARE:
TIME OF CONCENTRATION(MII~.) = 27.65
RAINFALL INTENSITYIINCHiHRI = 1.99
TOTAL STREAM AREAIACRESI = 113.00
PEAK FLOW RATEICFSI AT CONFLUENCE = 293.00
.. CONFLUENCE DATA ..
STREAM RUNOFF Tc
I'JUNBER (CFS) (MIN. )
1 309.08 25.54
2 293.00 27.65
I iHENS I TY
I INCH/HOUR)
AREA
IACREI
165.50
113.00
2.07'3
1.9'':/0
i:***********~;**~:*****************WARNING********************1;*************
Il'~ THI'3 COMPUTER PROGRAM, THE CorJFLUEtJCE VALUE U~;E[) IS BA'3Er.'
ON THE RCFC~~CD FORMULA OF PLATE D-l AS DEFAULT VALUE. THIS FORMULA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
***~;*********************************************~~;:~*************~;********
RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO
CONFLUENCE FOFiP'IULA USEV FOR _ S;TREAr~s.
** PEAK
STREA~I
NUMBER
1
TABLE **
Tc:
l~lIN. I
INTENSITY
( INCH/HOURI
2.079
1.990
CCWIPUTEV CONFLUENCE
PEAK FLO!;j RATE (CFS)
TOTAL AREAIACRES) .
ESTIMATES ARE AS FOLLOWS:
= 579.72 TcIMIN.I =
25.54
~
27:3.50
38
****************************************************************************
FLO!;J RATE
RUNOFF
(CFS)
579.72
5:3:3. 8')
25.54
27.65
2
I
I
I
I
I
I
;.)
I
I
I
I
I
I
I
I
I
I
I
I
I
'~):~COMPu-rE PIPEFLOW TRAVEL-rIME "rHRU SUPARE~\~
. . :,'~')'USING COMPUTER-ESTlr~ATED PIPESIZE (NON--PRES8URE FLOW)"
==::::::: =;= == =:::: == =:;:; ==::;::::::::::::::::::::::::::::::::::::::: =::::::::;;:::::::: =:::::::::::::::;;::::::::::::: =::: =:::::::::::::::: ===:::::::: =::::;;;; = ==:::::::::::::::::::::::::::::::::::::::::::::::::::::;:
DEPTH OF FLOl'J Itj 96.0 II',CH PIF'E E; 7::J.2 WCHE'3
PIPEFLOW VELOCITYCFEET/SEC.1 = 14.1
UP'3TI~EAM N(I[)E ELEVATION = 1076.20
DOWNSTREAM NODE ELEVATION = 1071.10
FLOWLENGTHIFEET) = 980.00 MANNING'S N = .013
E:o'TnIATED PIPE [:>UliYIETEF(( INCH) = ',i6. 00 NU~1BEF;: OF PIF'ES = 1
PIPEFLO~.J THRU "UBAREA (CFS) = 57'7.72
TRAVEL. TIl'!E (~IIN. i = 1.16 TC <r"tHj.) = 26.70
I
*****~*******~**************~******:~****************************************
f7L.OI'J Pf~OCES'O' FRO~I NODE
424.00 TO tWPE
424.00 IS CODE =
,.',
,=,
>>>>>APPITION elF SUBAREA TO MAINLINE PEAI< FLOl'J<<",'"',,
I,
-._--------------------------------------------------------------------------
-----------------------------------------------------------------------------
I~~
100 YEAn EAH~F'ALL INTENSITY (INCH/HOUR) =
SOIL CLASSIFICATION IS "B"
CCifV!MERC I AL DE\jELOP~IEtJT RurJOFF
SUBAREA AREAIACRES) = .00
TOTAL AF:EA (ACF\E'O') = 27::::. :::.0
TC(MIN) = 26.70
2. 02':~
COEFFICIENT = .~6~J
'3UBAREA RUNOFF (CP3)
TOTAL Rl~OFF(CFS) =
= .00
579.72
****************************:~***************~*******************************
FLOl-J PROCD3'o' FROt1 NCiI)E
424.00 TO tJm:>E
424.00 IS CCIDE = 11
>>>>>CONFLUENCE f"IEMORY BAtJK t1 2 t~ITH THE i'lAIN-'~;-f'REAM rIEtKIRY<<<<<
~===========================================================================
'f:>!. r-!AltJ
'3TREAM
NU~1BER
1
STREAM CONFLUENCE PATA --
RUNOFF Te INTENSITY
ICF~;) (['1m. I (HKH/HOUR)
579.72 26.70 2.029
Af~EA
U;O;:E)
27:3.50
of: :J: MEr1(::rF~Y
'3TREMl
I'W1'1 E'EF(
1
BANI": t1
RUNOFF
(CFS)
1:306.09
., CUNFLUENCE DATA **
Te INTENSITY
<i1Ii'J. ) (INCH/HOUfO
27.63 1.991
AREA
((-1CRE)
65":';..:30
~.~**********$:~*~:~*****~;**********WARNING****$*~~**********~:*****~*********
IN THU,' COMF'UTER PROGRAM, THE CONFLUENCE VALUE USED I~' BA'3E[)
Or~ THE RCFU,t~C[;O FORMULA OF PLATE [)-1 A'O' [:>EFAULT VALUE. THI';;; FOf~MULA
I,') I LL tJOT NECESSAR I L Y RES'UL T II-j THE MAX I MUM VALUE OF PEAK FLm,).
*****~*t******************t********~:*~:*************i:**********************
!"~ .
".,* PEAI<
STREArrl
l'jU~lBER
1
FLm~ RATE
RUNOFF
(CFS)
TABLE **
Tc
(I'1IN. )
26.70
27.6:]
INTENSITY
( INCH/HOUR)
2.029
1.991
2:]25. 24
:~~
:2::r7~j. 04
COMPUTED CONFLUENCE
PEAK FLC<~; RATE (CFS)
TOTAL AREA(ACRES) =
ESTIMATES ARE AS FOLLOWS:
= 2375.04 Tc(MIN.) =
'] ::14. :,;:0
27.63
r;5
********:t***************************~***************************************
FLOW PROCESS FROM NODE' 424.00 TO NODE 424.00 IS CO[:>E = 1~
- '-:: ;;; ;,;~~~~ - ~~~,;~~ -;~~; -; -; - ~ ~ ~~ ~ -- - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - - - - - - - - '3~
==:==========================================================================
I
--------.---------------------------------.----------------------.-------------.
I
I
I
I
I
I
-
,
-
I
,
I
I
I
I
I
I
I
I
I
I
I
'.~~: ~~;:~~;-~.:.,::':;k.::~I:~:(::I;.'::(
!:~.,~**~;.~*:(:~:*:~*:I:.!:~:*~:~:~i:;I'
,.,.;J;.,':.,::!:",::.':;):-!,
...,...........,j.....J--.--J.-J.
....... .........---........
FLOW PRO~-E;S ~RO;1 tJ'J0E
,-t24. (I (I TIJ i',j'J[..;::..
424~OO IS CODE =
i.U
'.~.~-MAli~-STREAM MEMORY (:OPIED ONTO MEMORY BANK # 2
.. ......
=================.:==========================================================
~**~*,~**.~~*:~~:~**~**********:~*************;~*********************:~**:~*~*:~***~*
FLOW PROCESS FRDM tJODE
424.00 TO l\~ODE
424.00 IS CODE =
I
-.--.----"---------------------------------------------------------------------
"~~,>),>ueER ~PEClFIED HYDROLOGY INF-ORMATIOrJ AT NODE<<~~"~"
~===========================================================================
LISEF~-~PEClf'IED VALUES ARE AS FOLLOWS:
TCd'1II'.n:::: 27.6:; RAIN INTEr.J~=;Irl(II'.~CH/HDUR)::;: 1.':1':)
'"Ol"AL AREA (ACRES) = 1030.90 TOTAL RU~tOFF(CFS) ::::
2::;::i7.4::;:
**:~~:*****$********:~********:~****~***:~***********w********:~**********~*****M*
FLC)~.J PF\OCE~~\€\ FROr"1 t~ODE
424.00 TO NOVE
425.00 IS CODE ::::
'-;
----------------------------------------------------------------------------
',,>>>>cmlPUTE PIPEFLOI'J TFiA'/ELTlr'IE THRU SUBAREA<<<<<
'; >>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOWI<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 144.0 INCH PIPE IS 117.3
PIPEFLOW VELOCITY(FEET/SEC.1 = 25.7
UPSTPEAlyl NOOE ELEVATION = 1071.10
DOWNSTREAM NODE ELEVATIC~ = 1066.00
FLOWLENGTHIFEETI = 510.00 MANNING'S N
ESTIMATED PIPE DIAMETERIINCHI = 144.00
PIPEFLOW THRU SUBAREA(CFSI - 2537.48
TRAVEL TIMEIMIN.1 = .33 TCIHIN.1 =
I1'KHES
:= .01:3
NUMBER OF PIPES =
1
27.96
***********************************************************************:~****
FLOW PROCESS FRON NODE
4Z,.00 TO NODE
425.00 IS CODE ::::
:;';:
>>>>>AVIlITICtrJ OF SUBAREA TO MAINLHiE F'Et-\1< FLOI'J<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL I~rENSITYCINCH/HOURI =
:::.;OIL CLASGIFICATION IS "ell
COMMERCIAL DEVELOPMENT RL~OFF
SUBAREA AREACACRESI = .00
TOTAL AREAIACRESI = 1030.90
TCIMINI = 27.96
1.97::::
COEFFICIENT = .8791
SUBAREA RUNOFF C CF,3) = . U U
TOTAL RUNOFFICFSI = 2537.48
********:k***************************~***************************************
FLOW PROCESS FROM NODE 425.00 TO NODE 425.00 IS CODE = 1
>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<<
----------------------------------------------------------------------------
--.--------------------------------------------------------------------------
nJTAL N~1BER OF STREAMS = 2
CONFLUENCE VALUES U'3ED FOR INDEPENDENT
TIME OF CONCENTRATIONCMIN.1 = 27.96
!',AINFALL INTEN'3ITY I INCH/HRI = 1. 98
rOTAL STREAM AREACACRESI = 1030.90
F'EAK FLOW RATE (CFS) AT CONFLUENCE =
,3TREAI1
1 ARE:
2537.48
~
********:h**~:****************************************************************
FLOW PROCESS FROM NOOE 500.00 TO NOOE 501.00 IS CODE = 21
>>>>>RATIONAL ME THO[) INITIAL SUBAREA ANALYSIS<<<<<
40
-----------------------------------------------------------------------------
----------------------------------------------------------------------------
~
~
~
I
I
~ ~***.***.******************.****.***********.******************;************
I
,
I
"
,
,
,
I
I
I
I
I
I
I
I
[!EVELOP~IEMI IS (:OMMEf(Ll~L
TC. = K~[(LENGTH*:~3)/(ELEVArION (:HAfJGE) j~::~.~
l~JI-r'IAl_ SUBAREA FLOW-LENGTH ~ 700.00
UPSTREAM ELEVATION = 1075.60
DOWNSTREAM ELEVATION = 1068.60
ELEVATIC~ DIFFERENCE = 7.00
Te = .303*[( 700.00**8)/( 7.00)]~:*.2 =
100 YEAR RAINFALL INTEN':HTY(IrICHiHOUR) =
SOIL CLASiSIFICATION E< "C"
COtWIERC I AL DEVELOPt'lENT RUNOFF COEFF r C rENT =
SUBAREA RUNOFFCCFS); 18.06
TOTAL AREAiACRES) = 6.00
10.462
:=~. :395
. :3:::6~3
!'
TO'TAL RUNOFF (CFS) -
1 ::;:. Oi;:.
FLOW PR~~ESS FROM NODE
501.00 TO rKiDE
501.00 IS CODE =
}}}}}DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<<
>- >:>:> >A~J[:' COiVlPUTE ~iAR I !JUS CONFLUEr~CED ~3TRE?;rl 'jt;LUES< <: < < <:
j:
I:..
R~~
,'r"
t~.:.
t.:-...,
=================:===========================================================
TOTAL NUMBER OF STREAMS = ~
CONFLUENCE VALUES U'SED FOR HWEPENDENT
TIME OF CONCENTRATIONIMIN.1 = 10.46
RAINFALL INTENSITYiINCH/HR) = 3.39
rO'U~L tlTREAN AF:EA (ACREtiJ:;;; 6. UIJ
PEAJ< FLm.J RATE (CFS) AT CONFLUENCE =
STREAt-l
2 ARE:
1:::.06
t:
t:
** CONFLUENCE DATA **
STREAM RL~OFF
NUMBER CCFS)
1 2537.4:3
!'
Tc
It.JTENS ITY
I I rK:H/HCUF: I
1.'n',,'
AF:EA
<rllN. )
(ACRE)
1.0:30.90
6.00
27.96
1~=:.06
10.46
:).395
*****************************~***WARNING*********************************;~
Itl THI:':' CDNPUTEF\ PROGRAn, THE CCrlFLUErJCE VALUE USEV Ei BASED
ON THE RCFU,vJCD FORI1ULA OF F'LATE [:,-, 1 ASi DEFAULT VALUE. THI'3 FORMULA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
**************************************************************************
.'
RAINFALL INTEM3ITY AND TINE DF CONCENTRATION RATIO
CmWLUENCE FOFi:MULA 1),3E(:' FOR 2 STREAMS.
:,': ;~: PEAI<
FLOl'j RATE
RUNOFF
(CF!})
967.53
TABLE **
Te
(mN.1
10.46
27.96
1. 97:::::~
I mEN':>! TY
( IrKH/HOURJ
STREAi"l
NLWIE<EF<
1
:3. :3';;J5
:"2
2~i4:=:. 00
COMPUTEV CONFLUENCE
PEAK FLOW RATE(CFS)
TOTAL AREA(ACRES) =
ESTIMATES ARE AS FOLLOWS:
= 2548.00 Tc(MIN.) =
10:36. ':10
27.96
*****:~:~*********************************************************************
FLOW PROCESS FROM NODE
~501. 00 TO NOVE
502.00 IS CODE =
:3
>>>>>COMPUTE F'IPEFLD~J TRAVEL TI~IE THRU SUBAr~EA<<<<<
>>>>>USiING COMPUTER-ESTIMATEO F'IPE~3IZE (NON-PRESSURE FLOW) <<<<<
============================================================================j:\.
[,'EF'TH OF FLm.J IN 144. 0 IrKH F' I PE IS 11 7 . ':;l INCHES fP
F'IPEFLDW VELOCITY (FEET/:::iEC.) = 2~;. 7
UPSTREAM NOOE ELEVATION'= 1066.00
DOWNSTREAM NOVE ELEVATION = 1062.80
FLOWLENGTHCFEET) = 320.00 MANNING'S N = .013
ESTI~IATEO PIPE DIAMETER <INCH) = 144.00 NU/'IBER OF F'IF'E<:i =
1
41
I
I
,
1
I
I
I
!
,
,
II
I
,
,
I
I
I
I
I
I
I
I
I
i'f(A'!EL 1I1'IE (tUN.
. L: 1
TC (t'IH1.) = 2:3:.17
*******:~;~;~****;~**********************:t****************:r**********:~:~*:~:~*:~*:~**
FLC'I'J F'fWCE:3:3 F f': 01'1 r10VE
:::02.00 TO rWDE
502.00 IS CODE =
1
>>>>>DESIGNATE INDEPENDENT STREAM FOR CC~FLUENCE<\<<<
-._--------------------------------------------------------------------------
----------------------------------------------------------------------------
I
I
;'.
i
:
TOTAL NUMBER OF STREAMS = ~
CmWLUENCE VALUES USED FOR I1'WEF'ENDENT STREAN 1 AJ'\E:
TH1E OF CorJCErJTRATIOrJ(J"IHJ.) = 2:3:.17
RAINFALL INTENSITYIINCH/HR) = 1.97
TOTAL S"rREAM AREA(ACRES) = 1036.90
F'EAJ< FLO~'J RATE (C:F:::-i) AT CONFLUENCE == 254:::.00
***~:***~~****~:~:********~:******1;*****************************~***********:~***
FLOW F'ROCESS FROM NODE
~iO:3. 00 TO NOr)E
504.00 IS CODE = 21
,.:
> >>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<<
(X-'
~?
r:~ .
-----------------.-----------------------------------------------------------
-----------------,-----------------------------------------------------------
ASSUMED INITIAL SUBAREA l~IFORM
DEVELOPMENT IS SINGLE FAMILY Cl/4 ACREI
TC = K*[ILENGTH**31/IELEVATION CHANGE)]...2
INI1IAL SUBAREA FLOW-LENGTH = 1000.00
UFSTPEAI1 ELEVATION = :1.073.50
DCHih~:::iTREAr"'l ELEIIATIOrJ = 1067.:30
ELEVATION DIFFERENCE = 6.20
rc = .393*[, 1000.00**3)/( 6.20)]**.2 - 17.198
100 YEAR RAINFALL INTENSITY lINCH/HOUR) = 2.583
:::iIJIL CLA~::iSIFICATIOf'J I:::i UBIt
SINGLE-FAMILYll/4 ACRE LOT) PUN OFF COEFFICIENT = .7702
SUBAREA RUNOFFICFSI = 19.90
TOTAL AREAIACRESl = 10.00 TOTAL RUNOFFICFSI = 19.90
,
******~:******~:~***~:*.h*:~~:********************************~:**~***~1:****i:******
FLCH~J F'F:OCESS FROfiJ NODE
~504. 00 TO NODE
505.00 IS CODE =
:3
>>>>>COI'1FUTE FIPEFLO\.<) TRAVELTIME THRU '3UBAREA<<<<<
)>>>>USING COMPUTER-ESTIMATED F'IPESIZE INON-F'RESSURE FLOWI<<<<<
--.--------------------------------------------------------------------------
-----------------,-----------------------------------------------------------
DEPTH OF FLOW IN 27.0 INCH PIPE IS 20.7 INCHES
PIPEFLO\'J VELOCITYIFEET/!3EC. I = 6.1
UF"3TREAI'1 NODE ELE'/ATION = 1067.30
DOWNSTREAM NODE ELEVATION = 1064.40
FLOWLENGTHCFEET) = 550.00 MANNING'S N = .013
ESTIMATED PIPE DIAMETERIINCHI = 27.00 NUMBER OF PIPES = 1
PIF'EFLOW THRU SUBAREAICFSI = 19.90
n'\AVEL TIMEININ.1 = 1.50 TCCMIN.) = 18.70
f:;"
**********i:~:**~:******************************************~:**~:***~:~:**********
FLOW PROC:ESS FROM NODE 505.00 TO NODE 505.00 IS CODE = 8
>>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
============================================================================
100 YEAR RAINFALL INTENSITYIINCH/HOURI = 2.467
~3CIIL. CLA~3SIFICATION IS lie"
SINGLE-FAMILYll/4 ACRE LOTI RUNOFF COEFFICIENT = .8121
SUBAREA AREACACRESI = 4.00 SUBAREA RUNOFF(CFS) = 8.01
TOTAL AREA(ACRESI = 14.00 TOTAL RUNOFFICFSI = 27.91
rca.'lINJ = 18.70
~
42.
~
~
Ii
I
I
I
I
i
In
,-.-
I
-.3
-
a
I
I'
__.J
I
I
I
Ii
I
FLOl'J ;':>RCCt:.S:~; FF:()t:1 NetLE
'~o~.uu IS LOD~ =
:,(1::1.00 I D j'JOVt:.
1
----------------------------------------------------------------------------
;~?>~~[IESIGNATE lrJDEPE~JDErjT STREAM FOR CONFLl:ErJC-E<<~:~.~
,,' ,,' " > >AND COi'iPUTE VAf~ I OUS CONFLUENCE[) :5 TREAl'l VALUES< , , , ,
============================================================================
TOTAL NUi'lBER OF :3TREArlS = .2
CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE:
TH1E OF CONCENTRATION UHN.) = 1:3.70
RAINFALL INTENSITYCINCH/HRl = 2.47
TOTAL STREAM AREACACRES) = 14.00
PEAK FLOW RATECCFS) AT CONFLUENCE = 27.91
.. DJNFLUENCE DATA ..
STREAr-, RUNOFF
NUMBER (CFS)
! 2:54:='::.00
2 27.91
Tc:
dHN. )
2::;:.. 17
1:::.70
It'HENt'ITY
( IrK:H/HOUf~)
1.971)
2.4;;;,7
AREA
(ACRE)
1(1:36.90
14.00
~::~****~;***:~****~*~**~:****:~*****i:i:WARNING*********~*************1;**~:*******
IN THIS COMPUTER PROGRAt1, THE CONFLUEI'JCE VALUE USED IS BASED
ON THE RCFCLWCD FORMULA OF PLATE D-l AS DEFAULT VALUE. THIS FORMULA
('J I LL NOT NECESS?\R I L Y RESULT I I',) THE M;~X I/'1UN VALUE OF PEAl< FLm~.
~;*~*****~:$********~:*******************~:********~:**************.~***********
RAINFALL INTENSITY AND TIME OF CONCENTRATIC~ RATIO
CONFLUENCE FORMULA USED FOR 2 STREAMS.
'" ,', PEr.l<
:-3TF:EAr-1
i'JUMBER
1
Ti~BLE **
Te
(~lIN. )
1::::.70
2::;:.17
nHENSITY
( IrJCH/HOUR)
2.467
1.970
COMPUTED DJNFLUENCE
PEAK FLOW RATECCFS)
TOTAL AREA(ACRESl =
E:::'TI MA TEt' ARE
= 2570.28
1 O~iO. ':to
28.17
AS FOLLOtiJS:
Te Ci'lIN.) =
*******~:**~:*******************************************************:~********~
:2
FLOW RATE
RUI'KiFF
(CFS)
1 71',i. t.l
2570.2[3
506.00 IS CODE =
::\
FLOW PROCESS FRO~I NODE
50~5. 00 TO NODE
>>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
>>>>>USING COMPUTER,-ESTII1ATEI) PIPESIZE CNON-PRESSURE FLOW) <<<<<
-----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 114.0 INCH PIPE IS 87.8 INCHES
PIPEFLOW VELOCITYIFEET/SEC.) = 21.9
UPSTREAM NODE ELEVATION = 1062.80
[:'m',rJ'3T1~EAM NODE ELEVA T I or~ = 1057. 60
FLOWLE/'JGTH(FEET> = 520.00 t1ANNING'S N = .013
ESTIMATED PIPE DIAMETERCINCH) = 114.1)0 NUMBER OF PIPES =
PIPEFLOW THRU SUBAREAICFS) = 2570.28
TRAVEL TIMEIMIN.) = .39 TC(MIN.) = 28.56
I
****************************************************************************
FLOW PROCESS FROM NODE 506.00 TO NODE 506.00 IS DJDE = _
>>>>>ADDITIC~ OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
Ii
II
===;~~=~~~~=~~;~;~~~=;~;~~~;;~7;~~~;~~~~~=:==;~;;';'=========================GJt
SOIL CLASSIFICATION IS "CO
CO~IMEF:C I AL DEVELOPMENT RUNOFF
SUBAREA AJ'iEA CACRES) = .00
TOTAL AREACACRESI - 1050.90
TCCMIN) = 28.56
COEFFICIENT = .8789
SUBAREA RUNOFFCCFS) = .00
TOTAL RUNOFF (CFS) = 2570.2:::
43
I ~;:~*:~..~;~**~******;~~~:~~******:~:~:~~:~:t:~*:t:t:~***:~:~****;~;~**:~***:~;~*:~:~**:~;~::t:~:t.r:~*:~~:
I
I
I
I
I
I
I
!
,
I
,
I
I
I
I
I
I
I
I
I
I
I
I
}~ ;t: ::.; :'( *
FLO~J PF~OCESS FROr'j ~JODE
~jUr::'. OU TO ~-~CfDE
i
506.00 IS (.O~E =
------------------------------------------------.----.--------------------------
)>)>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<.'
============================================================================
TOT(~L NUt,mER OF tiTREAMS = .,
COI'JFLUENCE VALUES USED FOR II'JVEF'ENI'ENT
TIME OF CONCENTRATIONININ.1 - 28.56
f<AmFALL H<TENSITY I ItJCH/HR) = 1. 95
TOTAL STREAM AREAIACRES) = 1050.90
PEAK FLOW RATE ICF:S) AT CONF'LUENCE =
!STI,(H,J1
1 Af~:E,
2570.28
'~1;*~1:*****~:******~;******1:***********1:*1:***~:*:~*i;**~*********i:*~**:~*********:~*
FLOW PROCESS FROM NODE 507.00 TO NODE 508.00 IS COVE = 21
-------------------------.---------------------------------------------------
>))>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
[:~:;;
'"
"
ASSUMED INITIAL SUBAREA UNIFORM
DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE)
TC = K*[ILENGTH**3)/IELEVATION CHANGEIJ*s.2
INITIAL SUBAREA FLrn~-LENGTH: 550.00
UPSTREAM ELEVATION = 1066.70
VC~NSTREAM ELEVATION = 1063.30
ELEVATION VIFFERENCE = 3.40
-re: .393*I( 550.00**3)/( 3.40)]*~:~2 = 13.548
100 YEAR RAINFALL INTENSITY I INCH/HOUR) = 2.945
!:)JIL CLA:::iSIFICA-rIOtJ IS JIB"
SINGLE-FAMILYll/4 ACRE LOT) RUNOFF COEFFICIENT = .7819
SUBAREA RUNOFFICFS): 16.81
TC~AL AREAIACRES) = 7.30
16. :31
DJTAL RUNOFFCCFSI =
****:~~:***~:******1:*****~:***~:1:*:t*******$******~***********:~***********~:******~:
FLOW PROCE~,S FROM No[:>E
50:3.00 TO NO[)E
509.00 IS CODE =
:3
--------------..____0_____------------------------------------------------------
')>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
>))))USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<<
-----------------------------------------------------------------------------
-----,-----------------------------------------------------------------------
DEPTH OF FLC~ IN 27.0 INCH PIPE IS 18.1 INC~ES
I='IPEFLOW VELOCITY (FEET 1'~iEC.) = 5. ';1
UPSTREAM NODE ELEVATION = 1063.30
Dm~N':nREAM NOnE ELEVATION: 1060.40
FLOWLENGTH(FEET) = 550.00 MANNING'S N
ESTIMATEV PIPE DIAMETERIINCH) = 27.00
PI F"EFLOi'J THRU SUBAREA I CFS): 16. ::: 1
TRAVEL TIMEIMIN.) = 1.54 TCIMIN.1 = 15.09
= .01:3
NUMBER DF P I PE~3 =
1
****************~:************************~:*********************~:************
FLOW PROCESS FROM NOVE 509.00 TO NODE 509.00 IS CODE = 8
----------------------------------------------------------------------------
)))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL INTENSITYIINCH/HOUR) = 2.776
SOIL CLASSIFICATION IS "CO
SING~E-FAMILYll/4 ACRE LOT) RUNOFF COEFFICIENT = .8201
:SUBAREA AREA IACRE!3i = 6.50 tiUElAREA RUNOFF ICFS) =
TOTAL AREA IACRE!3) - 13.80 TOTAL RUt~OFF ICFS) =
Te ltHW: 15.09
1 4 . :,;:0
:31. 61
10
-,: * *' * .t.i-~;t'"f: * * -J: 'J: * 'f: * * :t,. oJ: *:t' of' * * * * *'r. -t"J: -t::to 't. 'f: * * * of: * * *:+: * * * 't':t':+: * *:+: -f: -f: 'f: * 'f: -f: 'J::t' * 'f' * * -r. * *:+: 'fo:t-:oJ' 'f:'f: -t:.t:;.j-"f: 'f.
- I=I ;-;~d o~RI~'~:~~~~ ~1:;1~1t\"1 '~~Il;)F"'" '-~;_1:~_';_;;1~';:l0 tJODE' ~(;.~"O(;' ~~ -~;~I~~~ ~. -'-1- ..- -.. 0.. 0 "4+
I
,
I
~
II
I
II
, I
-
I..'
....."
I
-'-J
~ 10{'r-~I~ lr~IJE~'ErJIJErJf STREA~I FOF~ COt~~LU~('JC~:.,;.~~
"'~'.;~r~[) (.(IMPU'fE VARIOljS CONFLU~NC:ED STREAM VALUES<<~~
-----------------------------------------------------------------------------
----------------------------------------------------------------------------
TOTAL NUMBER OF STREAMS = 2
CCNFLC'ENCE 'H\LUE'" USEV FOR INVEPErWErn STREAr1 2 ARE:
TH1E OF CONCENTRATIONlrlIN.) = 15.0';;
RAINFALL INTENSITYIINCH/HR) = 2.78
fOTAL '='TREAr,1 AREA (ACRE:3) = 13. '='0
PEl-if(: FLCf('j RATE ICF,,:) AT CONFLUENCE = 31.61
*. CONFLUENCE DATA **
STREAM RUNOFF
NC~BER (CFS)
i 2:570..2:::
Tc:
U1II'J. )
,",,-, c;: "
..::,:..o_,r;::.
I rnErmIT'i
l INCH/HOUf~)
AREA
lACRE)
1 O~;O. 'JO
.1:.3. :3U
.31.61
1:5.09
1.955
2.776
*i:*:t***~:t~****~:******************WARNING~*************~:*.t*:~****:t~:****~:****
I I', TH I S CO~lPUTER F'ROCiRAM, THE CONFLUENCE VliLUE USED IS BA'3ED
or,j THE r~CFC1"t'ICV FOf~r'IUU\ OF PLATE V-I 1-\:3 l:EFAUL T 'JALUE. fHI:':3 FORr'IUU\
loJILL nOT r,ECE~;;3ARILY RESULT 11'< THE r1AXH1UI1 VALUE OF PEAK FLOri.
1::~1:**1:~;*~*~:**~*~:*~*~:****~:.~***************:~**************i:1:*:~**************
II
IJ
RAINFALL IrJTENSITY AND TIl1E OF CONCENTRATION RATIO
CONFLC'ErJCE ,7IJf~MULA U'"Er:, FOF( 2 "'Tf(EAMS.
:~::+: FEAI<
,nF:EI-\rI
NU!!lBEFi:
1
FLOW RATE
RUNOFF
(CFS)
1 ::1:3':)1 ~ ::i2:
TABLE "''''
Te:
IrHN. )
1::i.09
IrHEN';:iITY
( mCH/HOUR)
2.776
1 . 9~35
1\
I) 'I" '" ," '" '" '" 'I' '" ,', '" '" '" "* "'" '" 'I'''' '" "'*'" "'* * '" '" "'*'" "'''' '" "''' "'* "'* ** * * * * *'" '" "'* "''''* * "'**** ** * '" '" * * *** **'" * '.'
FLOW PROC'ESS FROM NODE 509.00 '"0 NODE 510.00 IS CODE = 3
,~
2592.54
2:3.56
CC!/'11F'UTEV CONFLUENCE
PEAK FLOW RATE(CFSl
fOTAL AREACACRES) =
1064.70
ESTIMATES ARE AS FOLLOWS:
= 2592.54 TcIMIN.) =
2:.3. ~~f,
If! '----------------------------------------------------------------------------
"''' '" "')CO~lF'UTE F'IPEFLDl'j Tf~AVELTI~IE THRU :;:iUBAI~EA<<<<<
)>)))USINCi COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<<
----------------------------------------------------------------------------
II - - -,- ,- - - - - - - - - -- - - --- - - - - - -- - - - - - - - -- - - - -- - - - - - - - - - - - -- - - - - - - - --- - -- - ---- - ---
_,1
DEPTH OF FLOW IN 114.0 INCH PIPE IS 88.5 INCHES
PIPEFLOW VELCCITY(FEET/SEC.l = 22.0
UPSTREA!1 NODE ELEVATION = 1057.60
~JWNSTREAM NODE ELEVATION = 1052.40
FLOWLENGTH(FEETI = 520.00 MANNING'S N
ESTIMATED PIPE VIAMETERlINCH) = 114.00
PIPEFLOVJ THF,U SUBAF(EA (CFSI = 2592. ~;4
TRAVEL TIMEIMIN.) = ..39 TCIMIN.l = 28.96
FLOW PROCESS FROM NODE
= .01:3
NUMBER OF PIPES =
L
510.00 TO NODE
__0______---------------------------------------------_______________________
510.00 IS CODE =
)ADDITIOrJ OF SUBAREA TO /"IAINLINE PEI~f( FLClt'J<<<<<
============================================================================
1.940
COEFF I C lENT = . '='7::::::::
'3UBAJ~EA RUNOFF (CFSI = .00
TOTAL RurKiFF I CFS I = 2~i92. 54
,\
100 YEAR RAINFALL INTENSITYIINCH/HOURI =
SOIL CLASSIFICATION IS "CO
COMMERCIAL DEVELOPMENT RUNOFF
SUBAREA AREA(ACRESI = .00
TOTAL AREAIACRESI = 10t4.70
TClMIN) = 28.96
Ii
Ii
45
I
~
I
I
I,
I
I
I
,
I
..'
I
,
! I
I
I
I
I
I
I
I
I
FLOW F'ROC~~~ ~f~(IM rJODE
~510. OU TO tJClDE
510.00 IS CODE =
1
, ," .,:' .,:' > V:::S I c,t4ATE I rH;'EF'E~~VErJT :.:rrr-~E~Ii"1 FCiF CONFLUEr,:C E -;. .,
~~~~========================================================================
TaTAL NUMBER OF STREAMS = ~
COi',FU.lEI',CE VALUE'3 USED FOR IJ',VEFE1'WEtH '3TREA1'1 1 AJ~E:
TIME OF CONCENTRATIONIMIN.l = 28.96
RAINFALL INTENSITYIINCH/HRI ~ 1.94
TOTAL STREAM AREACACRESl = 1064.70
i='EA~:: FLO~J RATE ICFSI AT CmWLUEI'KE = 2592. ~::;4
****i;**************~:************~:********:~;~*;~~****;~*;~*****:~*****:~*******i:**:~
I=-LC/\.l! F'FOC:E:3S FRO\"1 NOVE
~dl.00 'TO r,ODE
512.00 IS CODE = 21
>>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<<
-----,-----------------------------------------------------------------------
-----.--------------------------.---------------------------------------------
A'3'3UME[) un TI AL ::::iUBAREA UN I FOf,M
DEVELOFME~T IS SINGLE FAMILY (1/4 ACREI
TC = K*[ILENGTH.*31/CELEVATION CHANGEI]...2
INITIAL SUBAREA FLOW-LENGTH = 600.00
UPSTREAM ELEVATION = 1061.70
DOWNSTREAM ELEVATION = 1058.10
ELEVATION VIFFEREM:E = 3.60
TC:= .393*[( 600.00**3)!( 3.60)]**.2 = 14.112
100 YEAI': RAINFALL INTENSITY I UKH/HOURI = 2.:3:30
:::iOIL C'LAS~\IFICATIOr~ IS IIBl'
SIM3LE-FAMILYll/4 ACRE LOT) RUNOFF COEFFICIENT = .7:300
SUBAREA RUNOFFICFSI = 19.32
TDTAL A;~EAIACRES) = '3.60 TOTAL RUNOFFICFSI = 19.32
,.
t.::.
t:-.
F'
~$*********~*~************~;***********1;***************************i;*:~~;**~:***
FLOW FROCESS FROM NOVE
r
512.00 TO NOVE
513.00 IS CODE =
:3
, , , , >COI"IF'UTE F'IPEFLO~J TRAVEL TU1E Tl-JF;U '3UBi::'F:EA<<<<<
>>>>>lf3Hj:3 CDrWUTER-,ESTH'IATED PIF'ESIZE CI'jC:rj-PF(E':::;SUFiE FLot'J) <<<<<
-----------------------------------------------------------------------------
-----------------.-----------------------------------------------------------
r'EPTH OF FLOl.J Hj 27.0 INCH PIPE E; ~:Ci.l INCHES
I"IPEFLO\.>J VELOCITYIFEET/:3EC.) = 6.1
l~STREAM NODE ELEVATION = 1058.10
{:>mm-::iTREAM NODE ELEVATION = 1055.20
FLOWLENGTHIFEETI = 550.00 MANNING'S N = .013
ESTIMATED PIPE DIAMETERIINCHI = 27.00 NUMBER OF FIPES = 1
PIFEFLOW THRU SUBAREAICFSI = 19.32
TRAVEL TIMEIMIN.) = 1.51 TCIMIN.1 = 15.62
*~:*****************************************$******~:************~:************
FLON PROCES3 FRCWl NonE
513.00 IS CODE =
513.00 TO rKIVE
>>>>>AVDITION OF SUBAREA TO MAINLINE FEAK FLOW<<<<<
-----,-----------------------------------------------------------------------
-----,-----------------------------------------------------------------------
100 YEAR RAINFALL INTEN3ITYIINCH/HOURI = 2.724
SOIL CLASSIFICATION IS Ile'l
SINGLE-FAMILYll/4 ACRE LOTI RUNOFF COEFFICIENT = .8189
SUBAREA AREAIACRESI = 6.50 SUBAREA RUNOFFICFSI = 14.50
TOTAL AREAIACRESI = 15.10 TOTAL RUNOFFICFSI ~ :,:<:.3.:::11
TCIMINI = 15.62
1'2--
*************************{**************************************************
FLOW FROCESS FROM NOVE 513.00 TO NODE 513.00 IS CODE = 1
- .,- - - -- - ~- -- - - - - - - - ---- - - - - - - - - -- - -- - - - - --- - - - --- - - - - -,--- - - - - - -- - - - - - - - - - --4'
:> > >:> > DES I GNA TE INDEPENDENT STREAr'1 FOR CONFLUENCE <: < < < "'-
I
)
I
I
I
i
I
~
I
I
I
I
I
I
I
II
I
1
I
I
I
I
I
=================~=~~~~=~~====~==============================================
fOTAL NUMBER OF 3TREA~:S = ~
COrJFLUENCE VALllES USED F(:P IN~EPE~JDE~JT ST.REA~1 2 ARE:
TIME OF CONCENTRATION(MIN.l = 15.62
RAINF~LL INTENSITYllNCH/HRl = 2.72
TC~AL STREAM AREAIACRESl = 15.10
F'EP.K FLOl'J RATE (CF'3) AT CONFLUENCE = 3::<. ::;'1
** ~ONFLUENCE DATA **
'3TF:EA~1 RUNOFF
NUMBER (CFS)
1 2::i92. 54
2 33. :31
I trrEr.JS I TV
( INCH/HOUR)
1. "i41J
2.724
f~F<EA
(ACRE)
IlJt.4.70
1 :5. 1 (I
Tc
UHI'.j. i
2::;:. '~6
15.62
***********~;**1:*1:**~i*~:******~*~;*~:WARNING******~******~:~:*******1:***~:*****1:*
Hi THIS CO!'lF'UTER PF:OGRe\M, THE CONFLUENCE VALUE IX3ED IS BA'3EV
ON THE ~:FC&WCD FORMULA OF PLATE 0-1 AS DEFAULT VALUE. THIS FORMULA
,HLL NOT NECES'3ARILY RESULT m THE ~ll;XHIUl'l VALUE OF PEAK FLOloJ.
**:~********~***~*~*~:*****~*****************************************:~*****~:
E:{
t
"
F:AINFALL IIHEN'3ITY Aj,Jj) TItlE OF CONCEI'HRiHION RATIO
CONFLUENCE FORMULA USED FOR L STREAMS.
,',,', PEF,f<
'';TFiEAr-1
r.jUI'lBER
1
FLCH'J R?\TE
RUrJOFF
(CF'3)
1432.30
2616.6:3
IrJTEj\JSITY
( INCH/HOUF,)
2.724
1.940
TABLE **
Ie
C/"lm.l
1 ~::;. 6:.2
2:3. ':/6
:2
COMPUTED CONFLUEM:E
PEAK FLOW RATECCFS)
TOTAL AREAIACRES) =
ESTIMATES ARE AS FOLLC~S,
= 2616.63 TcIMIN.) =
1 07':J. :::0
2::[.96
:~*:~*********************************:~***************************************
FLOll) F'ROCEti!3 FF:OM r-~ODE
~51:3. 00 TO r~ODE
514.00 IS (:ODE =
,-,
'-'
, , , >COMP~TE PIPEFLOW TRAVELTINE THRU SUBAREA(((((
>>>>>USING COMPUTER-ESTIMATEV PIPESIZE (NON-PRESSURE FLOW)(((((
----------------------------------------------------------------------------
----------------------------------------------------------------------------
OEPTH OF FLO\'J HJ 114.0 INCH PIPE IS :::::9.2 INCHE'3
eIF'EFLo('J '1ELOCITYCFEET/SEC. i = .,:'". u
UPSTI=iEAM NODE ELEVATION = 1052.40
DOWNSTREAM NODE ELEVATION = 1047.20
FLOWLENGTHIFEETI = 520.00 MANNING'S N = .013
ESTIMATEV PIPE DIAMETERIINCH) = 114.01J NUMBER OF PIPES =
PI PEFLO\'J THRU SU8APEA (CFS) = 2616. 63
TRAVEL TIMEIMIN.) = .~~ TCCNIN.l = 29.35
.....
L
~i~~-
**************************************************************************;~*
FLGi'J PROCES';:; FRO~I NOVE
~d4. 00 TO NOVE
514.00 IS COVE =
1
)>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(((((
----------------------------------------------------------------------------
----_._----------------------------------------------------------------------
TOT?,L NUMBEFi OF 'oiTREAMS = '"
CONFLUENCE VALUE>::i USEV FOR IN[)EPENVENT STREAt'l 1 ARE:
TI~IE OF CONCErHRATIOrJctHrJ.) = 29.:35
Fi:AHJFALL HHENSITY(!NCH/HR) = 1.93
TOTAL STREAM AREAIACRES) = 1079.80
PEAK FLOl~ RATE (CFS) AT CONFLUENCE = 2616.63
/?;
*****.***********~:***********************~***********************************
FLOW PROCESS FROM NODE 515.00 TO NOVE 516.00 IS CODE = 21 47
I
~
~
~
~
I
I
"I
I
.I
-
I
-
Ii
I
"
I
I:
Ii
Ii
I
I
"::-">>>>PAT IOr~AL ~.1=:TH(1) l~'.,:
"..,""i.,'"l:...., ~ir,AL v '0' I :::'< < < ':::-
====::=======================================================================
ASSUMED INITIAL SUBAREA UNIFORM
DEVELOPMENT IS SINGLE FAMILY (1/4 ACREl
TC = K*[ILENGTH**3J/lELEVATION CHANGEIJ**.2
INITIAL SUBAREA FLOW-LENGTH = 650.00
UPSTREA~l ELEVAT ION = 1056.90
DOWNSTREAM ELEVATION = 1052.90
ELEVATION DIFFERENCE = 4.00
Ie = .393'P[( 650.00**3)/( 4.00)]**.2 = 14.497
100 YEAR RAINFALL INTENSITYlINCH/HOURJ = 2.~J~
~::,OIL CLA:3:::dFICATIC!~~ IS lIell
SINGLE-FAMILYll/4 ACRE LOTI RUNOFF COEFFICIENT = .8216
SUBAREA RUNOFF((~FS) = 21.21"
TOTAL AREA (ACRES) = 9.10 TOTAL Rl~OFFICFS) = 21.21
*i:****~:**********i:*1:**;~*~************~********:~***~*'~*****i:*~********:~**:~1:**
FLOW PROCESS FROM NODE
:516.00 TO NODE
:;"
~~:,.
517.00 18 CODE =
.]
>>>>>COrlF'UTE PIPEFUJ"J TRAVELTI~lE THc'U '3UBAREA<<<<<
~~~)>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
~~::
DEPTH OF FLCM IN 27.0 INCH PIPE IS 22.0 INCHES
F'IF'EFLOoJ VELOCITY(FEET/~,EC.) = 6.1
UPSTREAM NODE ELEVATIC~ = 1052.90
DOWNSTREAM ~ODE ELEVATION = 1050.00
FLOWLENGTHIFEET) = 550.00 MANNING'S N = .013
ESTIMATED PIPE DIAMETERIINCHI = 27.00 NUMBER OF PIPES = 1
PIF'EFLOl,j THRU SUBA1':EA (CFe::" = 21.21
TRAVEL TIMEIMIN.) = 1.50 TC(MIN.) = 16.00
****1:***~***~~**1:**************************************************:~;~*******
FLOW PROCESS FROM NODE
517.00 TO NODE
517.00 IS CODE =
.::
>>,>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
====:========================================================================
100 YEAR RAII'JFALL INTENSITY (INCH/HOURI = 2.688
::10IL CLAStHFICATICWJ 1:3 lIe"
SINGLE-FAMILY(I/4 ACRE LOT) RUNOFF COEFFICIENT = .8180
SUBAREA AREAlACRES) = 6.50 SUBAREA RUNOFFICFS) = 14.29
TOTAL AREA (AC~:E'3) = 1~3. 60 TOTAL RUNOFF ICF~,) = 35.51
TCININI = 16.00
****************.************************************************************
FLOW PROCESS FROM NODE
517.00 TO NODE
517.00 IS CODE =
1
--.--------------------------------------------------------------------------
'.~)>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<<
>>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
TOTAL NUMBER OF STREAMS = 2
Cot,FLUENCE VALUE':' USEr, FOF~ HJDEPENDENT STREAM 2 ARE:
TIME OF CONCENTRATIONlMIN.1 = 16.00
RAINFALL INTENSITY (INCH/HRI = 2.69
TOTAL STREAM AREAIACRES) = 15.60
PEAK FLOW RATECCFS) AT CONFLUENCE = 35.51
** CONFLUENCE DATA **
STREAi'" RUNOFF Tc
NUMBER (CFS) cr,fIN. )
:1 2616.6:3 29.:35
.2 35.51 16.00
,A:
AREA
IACRE)
1079.::::0
15.60
Ii"HENSIT'f
lINCH/HOURI
:l.926
2.688
48
I
I
J
I
I
I
i
I
,
I
-
I
-
I
I
-oj
I
I
I
I
I
I
JI"J rH J::. C.':11'-1PUTEf;; ~'f-::OGF~;A:.l, I"HE ;_0'_;";- :._._. ~. ." ....:: " i-iL.uE U:=.ED 1 ::.:i Bf~'~,E[:O
Cr-~ THE RCr-="C;:,.I,:.JCi) 1;:Cif';;~lULrl OF i-'LAfE fl- i i-l::':l r'E."FAUL r \/(~;LUE. THL:, FC!F:i-':ULr'1
WILL r,jOT NECESSARILY RESULT II~ TI~E MAXIl1UM VALLIE OF PEAK FLOW.
~********~:i:*~***********i:*****~:*~:********~::~****i:*****;~****:~********:!:**:l:*~:~:
RAINFALL INTEr,r:HTY ArW TU1E OF CONCENTRATIm, RATIO
CONFLUENCE FORi':ULA USEV FOF< .:: ';:'TF,E!;M>:'..
,',*. PEAI<
:3TF:EAi'1
NUI~BER
1
FLO\>J RATE TABLE **
RUNOFF'
I NTEN'3 I T'(
( INCH/HOUR)
2.. 6:=;:~:
1.926
(CF~i)
Te
(r,lrr,. )
16.00
1461.49
2642.07
2':';'. ::15
,~
COMPL~ED CONFLUENCE
PEAK FLOl.J RATE (CFS)
TOTAL AREAlACRESI =
ESTIMATES ARE AS FOLLOWS,
= 2642.07 Tc (MIN.) =
1095.40
29.:35
****************************************************************:r*****~*****
~.:
~-;; .
FLOW PROCESS FROM NODE
~i17.0U TO NODE
518.00 IS CODE =
:.3
.----------------------------------------------------------------------------
>>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
>>>>>U6ING COMPUTER-ESTIMATED PIPESIZE lNON-PRESSURE FLOW}<<<<<
----------------------------------------------------------------------------
---.------------------------.-------------------------------------------------
DEPTH OF FLOW IN 114.0 INCH PIPE IS 90.1 INCHES
PIPEFLOW VELOCITY(FEET/SEC.} = 22.0
UPSTREAM NODE ELEVATICW, = 1047.20
DOWNS'fREAM NODE ELEVATION = 1039.60
I=UJ\>)LEI',I~TH (FEET> = 760.00 r.1ANNING' S N = .013
ESTIMATED PIPE DIAMETER CINCH) = 114.00 NUMBER OF PIPES = 2
PIPEFLDW THRU SUBAREAlCFS} = 2642.07
TRAVEL TINElMIN.) = .~~ TC(MIN.1 = 29.93
*****$*******:~******************************~*******************************
PLOW PROCESS FROM NODE
51::::.00 TO rKiDE
518.00 IS CODE =
:::
----------------------------------------------------------------------------
>>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
----------------.------------------------------------------------------------
----------------.------------------------------------------------------------
100 YEAR RAINFALL INTENSITY(INCH/HOURI =
:::..DIL CLA~3SIFICATION IS IICII
c:or'1MEF:C: I AL DE'IELOPMENT RUNOFF
SUBAREA AREAIACRES} = .00
TOTAL f.~HEA (ACRE!;;) = 1095.40
TC(MINI = 29.93
1. 90~i
COEFFICIENT = .87':::5
SUBAREA RUNOFFICFSI = .UU
TOTAL RurJOFF (CP31 = 2642.07
****:~**:~****************************************************:~***************
FLU!'J PROCESS FROM NODE
51:3.00 TO rKiDE
518.00 IS CODE =
1
.-.---------------.---------------------.---------------------------------------
>>>>>DESI8NATE INDEPENDENT STREAM FOR CONFLUENCE<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
TOTAL rJUi'IPER OF 3TF,EAM~' = 2
CONFLUENCE VALUE'3 USEr> FOR INDEPErWENT STREAM 1 ARE:
TIME OF CONCE~rrRATION(MIN.) = 29.93
RAINFALL INTENSITYIINCH/HR} = 1.91
TOTAL STREAM AREAIACRES) = 1095.40
PEAK FLOW RATE ICF~;) AT CONFLUENCE = 2642.07
16'
********~:******************~************************************************
FLOW PROCESS FROM NODE 519.00 TO NODE 520.00 IS CODE = 21
- -;:;; ;;~~~~~t~~~ -~~~~~~ -~~~~~~~- ;1~~~~~~- ~~~~ ~;~;~ ~ ~~ ~ - n_ - - - - - n - - - -- n - - n_ 4~
I
I
i
I
'I
..
I
I
ASSUMED INI"rIAL SUBARE~~ UNIFORM
[:'EVELC:F'MEt~T I:~, :::iINGLE jnr-::MILY (1/4 ACF:E,!
TC = K*[(LENGTH**3)/(ELEVATION CHANGE)J:~*.2
I~ITIAL SUBAREA FLOW-LE~~TH = 550.00
UPt;TREAM ELEVATION = 1050.20
DOW~STREAM ELEVATIO~ = 1046.90
ELEVATION DIFFERENCE = 3.30
TC = .393*[( 550.00**3)/( 3.80)J~:~:.2 = 13.629
100 YEAR RAINFALL INTENSITYIINCH/HOURI = 2.936
SOIL CLASSIFICATION IS "CO
SINGLE-FAMILYll/4 ACRE LOTI RUNOFF COEFFICIENT = .8237
SUBAREA RUNOFF (CFS) = 15.72
TOTAL AREA (ACRES) = 6.50 TOTAL RUNOFF(CFS) ~ 15.72
FLm" PROCE:::'S FRon NODE
~S20. 00 T() NODE
521.00 IS CODE =
---------------.------------.-.----.------------.-.-------.----.--------------------
> >>>>COMF'UTE P IPEFLO\.j TRAVEL TI/1E THRU '::;UBAREA < <<<<
>>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOWI<<<<<
.----------------------------------------------------------------------------
--.--------------------------------------------------------------------------
DEPTH OF FLOllJ I r,~ 24. (I It\~CH F' 1 PE I:; 17.:] I NCHEti
PIPEFLOW VELOCITYIFEET/SEC.I = 6.5
UPSTREAM NODE ELEVATION = 1046.90
DOWNSTREAM NODE ELEVATION = 1043.00
FLOWLENGTHIFEETI = 550.00 MANNING'S N = .013
E'3TH1ATEU PIF'E DIAMETERdNCHI = 24.00 NUrlBER OF PIPEt; =
PIPEFLOW THRU SUBAREAICFSI = 15.72
TRAVEL TIMEIMIN.I = 1.41 TClMIN.I - 15.04
1
. ..;:~:*;=~;;;;.;;~:.~;;;...;;;~~~.;;.~;;=...;;;~~~.;;.;~;;.:...:.......*.*.*
-------------------------------.--------------...---------------.--------.--------
I --.--------------------------------------------------------------------------
----------------------------------------------------------------------------
"
>>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
I
.
100 YEAR RAItJFALL HHEI',SITY (ItJCH/HOURI = 2.7::::0
~~;orL CLA:::itiIFICATIO~~ IS "e:"
SINGLE-FAMILYll/4 ACRE LOTI RUNOFF COEFFICIENT = .~~u~
SUBAREA AREA(ACRESI = 10.60 SUBAREA RUNOFF(CFSI =
TOTAL ARE,.lACRESI - 17.10 TOTAL RUNOFFICF:3) =
rc (j-"IIN) = 15.04
24.17
:),). :::';1
**:~******************************************************~******************
FLOW PROCESS FROM NODE
~i21.00 TO NODE
521.00 IS CODE =
I -----.-----------------------------------------------------------------------
, ----------------------------------------------------------------------------
, ' ,,:> UES I GNA TE I NI!EPENVENT :::>TREliN FOR CONFLUENCE < < < < <
>>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<<
I
t
,1
I
TOTAL NUMBER OF ~iTREAt'1S = 2
CONFLUENCE VALUES USED FOR INDEPENDENT
TIME OF CONCENTRATIor, (MIN. I = 15.04
RAINFALL INTENSITYIINCH/HRI = 2.78
TOTAL STREAt'l AREA (ACRES I = 17. 10
PEAK FLOW RATEICFSI AT CONFLUENCE =
STREA~I
2 AFlE;
39.:39
.. CONFLUENCE DATA ..
STREAM RUNOFF Te
NUMBER ICFSI (~lIN. I
1 2642.07 29.93
2 :39.89 15:04
AF,EA
lACREI
1095.40
17.10
ItHENSIT'(
lINCH/HOURI
1.905
2.780
1"
***************~:*****************WARNING*********************~************
IN THIS COMPUTER PROGRAM, THE CONFLUENCE VALUE USEr> IS BASED 50
I
I
,
I
I
I
I
I
<~
I
"I
,
,
I
"
,
I
.,
l '
I :1
:1
I
:1
il
I
LIJ J. LL j'~!:11 1'..IEC.E:=;~,~tF~: I L)' hESUL j" .t I"J rHE j"j;-))<, 1 r1U!"~ ":':~"h_)]''::'
."! u~;.! ~
-!..,
~**~**'~~*i:~~*~:*'~i::I:*:~*i::l:*~::~~::!:'~$~**:!:~:*:t:~'~:~*~*J:*'~*~:~;I:!:*'~*~:~:-:,~':-.i'-~I::!::1:~**i::l:*:~**~:
RAINFALL INTENSITY AND TIME OF CC~CENTRArION RATIO
CONFLUENCE FORMULA USED FOR L STF~EAMS.
"* F'EAK
c'TREAr-I
I'.IUMBER
1
FLOvJ RATE
RUNOFf'
CCFS)
1367.97
266':1.40
TABLE **
Tc:
(Mm.)
15.04
29.':1:3
,
I
I>
I NTEN:=; I TV
( HJCH/HOUR)
2.7:=:0
1. ':105
!.
f
.'~,
""
COM0JTED CONFLUENCE
PEAK FLOW RATE(CFSI
TOTAL AREA(ACRES) =
E~3T I ~'1ATE~i AF:E
= :2669.40
1112.50
~l:::l F"OLLOl,jS:
TcUHN.) =
29.9:3
~.
**~:*********************************~***************************************
FLOl'J PF:OCEc'S FRCWI ~lOVE ':";21.00 TO NOI:-E ':";:21.00 E; CDI:'E = 10
h
~;'..
"
.----------------------------------------------------------------------------
'>>>>>MAHj-STREA~1 ~!EI'IOF':Y COPIED O~JTO 1'1El'IORY 8!'<Nf< 1I ::< <<<<<
============================================================================
~:***~:***:~**.>>***~:***~:************~:*********~:*********************************
FLOW PROCE~3S FF:OM NODE
600.00 TO NODE
601.00 IS CODE = 21
-----------------...--.----------.---.--------------------------.-----------------.
>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<<
============================================================================
A'3c'UrryE[:> I NIT I AL S;UBM':EA UN I FORM
I:-EVELOPMENT IS SINGLE FAr-IILY (1/4 ACRE)
TC = K9[CLENGTH"*31/(ELEVATION CHANGEIJ**.2
INITIAL SUE<AF~EA FLDI'J-,LEt'JC,TH = 700.0(1
UPSTREAM ELEVATION = 1083.60
DOWNSTREAM ELEVATION = 1079.50
ELEVATION DIFFEREI'KE = 4.10
Te = .393*[( 700.00**3)/( 4.10)]**.2 = 15.082
100 YEAR RAINFALL INTENSITY(INCH/HOURI = :2.777
~::.;OIL CLAS:~iIFICArIC:r~ I€' "B'l
'3!iJGiLE'-FAMILY (1/4 ACRE LOT> RU~,OFF COEFFICIENT = .7767
SUBAREA RUNOFF (CFSI = 21.57
TOTAL AREA(ACRESI = 10.00 TOTAL RUNOFF(CFS) = 21.57
********~************~:**************~:*~*~~:****~:****************************~:
FLO\.j PROC:E:3S FRO~l NODE
601. 00 TO NODE
602.00 IS CODE =
;3
------------------------------------------------------------------------------
>>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
>>>>>USING CONPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOWI<<<<<
----------------------------------------------------------------------------
____d_________________________________________________----------------------
DEPTH OF FLOW IN 27.0 INCH PIPE IS :22.1 INCHES
PIPEFLOW VELOCITYIFEET/SEC.1 = 6.:2
UPSTREAM NODE ELEVATION = 1079.50
DOWNSTREAM NODE ELEVATION = 1073.00
FLOWLEM]TH(FEETI = 1200.00 NANNING'S N = .013
EST! ~iIATEI:' F'I PE D I A~,lETER ( II'JCH I = 27.00 NUMBER OF PI P'ES = 1
PIPEFLOW THRU SUBAREA (CFSI = 21.57
TRiWEL TrrlE(~lIN. I = 3.23 TC(tHN. I - 18.31
11
********************~:*****************~:***************~:*********************
FLOW PROCESS FROM NODE
602.00 TO NODE
602.00 IS CODE =
.;:,
~,
--;;;;;;~~~;~~~-~;-;~;;~;;-;~-~;~~~~~;-;;;~-;~~~~~~~~----------------------~I
============================================================================
I
~
I
I
I
.1
I
I
:~ J
I
I
I
,
I
I
_--I
I
I
I,
Ii
I
!I
SOIL CLASSIFICATION IS
SINGLE-FAMILY(1/4 ASRE
SUBAREA AREA (ACRES) =
TOTAL AREAIACRES) -
TCININI = 18.31
liB"
LOT) F.:UNOFF COEFFICIE~JT = .7"':.70
16.00 eUBAREA RUNOFF (CFS) =
26.00 TOTAL RL~OFFICFS) =
::10.63
52.20
********~*******;~********************~****$**:~************************~~****
FLOW PROCESS FROM NODE
1::.02.00 TO NODE
603.00 IS CODE =
3
.--.--.----.--------------------------------------------------------------------
>>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(((((
"'~>USING COMPUTER-ESTIMATED PIPESIZE lN~~-PRESSURE FLOW)(((((
----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 36.0 INCH PIPE IS 24.2 INCHES
PIPEFLOW VELC~ITYCFEET/SEC.) = 10.3
UPSTREAM MJDE ELEVATIC~ = 1069.60
DOWNSTREAM NODE ELEVATION = 1064.00
FLO~ljLENGiTH (FEET) == !520. 00 1'.Jl::lr,INlr~Gi I ~3 N == .01:3
Et;TIf'!ATEV PIPE r..IAf'!ETEH l INCH) = 36.00 r,UrI.8EF< OF' PIPE:3 = 1
PIPEFLOW T~IRU SUBAREA(CFS) - 52.20
n~A\/EL, THlElrIIrJ.) = .:::;4 TCCtlHJ.) = 1':1.15
~;
t
****************:~***~:********************************:~**********************
FLOl;J I:;:'ROCE~=S FRIJr-1 NODE
603.00 TO NOVE
603.00 IS COJ:jE ==
::::
----------------------------------------------------------------------------
>>>>>ADDITION OF SUBAREA ~J MAINLINE PEAK FLOW(((((
============================================================================
100 YEAR RAINFALL INTENSITYCINCH/HOUR) = 2.435
~::iOIL CLASSIFIC:ATION IS liB"
COMMERCIAL VEVELOPMENT RUNOFF COEFFICIENT = .8729
SUBAREA AREAIACRESI = .00 SUBAREA RL~OFFICFSl = .00
TorAL AREAlACF:ES) = 26.00 TOTAL RUNOF'F'(CFSl = 52.20
TCiMIN) = 19.15
,
****:~**********:~****;~*****************~***********************************~*
FLCltiJ F'R(!CESS FRCWI NOVE
6U3.00 TO rKiDE
603.00 IS CODE =
1
.,.----------------.------------------------------.-----------------------------
~)>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((~
------.----------------------------------------------------------------------
------.----------------------------------------------------------------------
l'OfAL NUMBER OF 51'REAMS = 2
CONFLUErK:E \'("'LUE'~; IY3E[) FOR HJDEPEr~r:'EI'H STREAJ1 1 ARE:
TIME OF CC~CENTF<ATIONlMIN.) = 19.15
RAINFALL INTENSITYIINCH/HR) = 2.44
TOTAL STREAM AREA(ACRES) = 26.00
PE,;}':: FLOVJ RATE lCFS) AT CONFLUENCE = '52.:20
"
****i:***********************~:******************************~****************
FLOW PROCESS FROM NOVE
604.00 TO NOr:'E
605.00 IS CODE = 21
-----------...------------------------------------------------.-----.-----------'
>>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS(((((
----------------------------------------------------------------------------
----.------------------------------------------------------------------------
ASSUMED INITIAL SUBAREA UNIFORM
DEIJELCF'MErn IS tiINGiLE FAMILY 11/4 ACRE)
TC = K*[ILENGTH**31/(ELEVATION CHANGE)]**.2
INI1IAL SUBAREA FLOW-LENGTH = 850.00
UPSTREAM ELEVATION = 1076.60
DOWNSTREAM ELEVATION = 1071.70
ELEVATIOr, DIFFEF<ENCE = 4.90
TC = .393*[( 850.00**3)/( 4.90)]**.2 = 16.352
100 YEAR RAIrJFALL INTENSITYIINCH/HOUR) = 2.656
SOIL CLASSIFICATION IS "B"
SINCiLE'-FAMIL \'( 1/4 ACRE LOTI RUNOFF COEFFICIENT = .7727
10
52.
I
\
'I
I
I
I
~
J
: ~-1
I
'-1
I
,j
-
11
II
J
,
I
,I
I
--;J
I
Ii
I
Ii
I
rO"fAL AREA,~CRES) =
1 U. u(i
I"O-rAL RUNOFF~(:FS) .-
~~u. :.:.2
~~:~;*:~**:~~:**********~~:**********~:*t****:l::~*******~**:~'~**;~~::~***~:***;~~:*~:~;****:~*:I:
FLOl;: F'f\OC:E~::.;:3 FROM t~ODE
60~5. 00 TO NODE
606.00 IS CODE :::;
:::
------.---------.------------------------------ --------------------------------
>>>>>COMPUTE PIPEFLOl;j TRAVEL T II"'IE THRU '=;UB,;REA< < <<<
>>>>>USING COMPUTER-ESTIMATED PIPESIZE INON-PRESSl~E FLOW)<<<<<
~====:=======================================================================
[:EPTH OF FLOt-) Itl 27.0 HKH P If"E 1'0, 2 L 4 INCHES
l"IPEFLm.J VELOCITY (FEET/'='EC.) = 6.1
l'Pt'TREAM rWDE ELE'jATIOn = 1071. 70
DOWNSTREAM NODE ELEVATION, = 1067.00
F'LC)t.:JLENGTH (FEET}:::; 900. (10 t':'!Ar-.r~~IN(~ f ti rJ = . ell:)
ESTIMATED PIPE DIAMETERIINCH) = 27.00 NUMBER OF PIPES = 1
PIPEFLOW THRU SUBAREAICFSI = 20.52
TRAVEL TIMEIMIN.) = 2.47 TC(MIN.) = 18.82
********************~:~:************************************************:~****:~
FLm~ F'ROCE'::,'3 FROM NO[:-E
606.00 TO NODE
606.00 IS CODE =
:=:
----------------.------------------------------------------------------------
>>>>>ADDITION OF SUBAREA TO MAINLINE F'EAK FLOW<<<<<
---------------------.-------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL INTENSITYIINCH/HOURI = 2.459
t:iOIL CLA:::;:::UFICATIIJrJ If3 "Bo
smCiLE-FArlILYCl/4 ?\CRE Lon RUt,OFF COEFFICIENT = .7655
SUBAREA AREAIACRESI = 9.00 SUBAREA RUNOFFlCFSI = 16.94
DJTAL AREAlACRESI - 19.00 TOTAL RUNOFFlCFS) = 37.46
[CIMIn) = 18.82
~******************************:~********************************************
FLOt'J F'HCCES:::; FROJTI rH)[)E
606.00 TO NODE
606.00 IS CODE =
1
----.------------------------------.------------------------------------------
)>j~jDESIaNATE INDEPENDEnT STREAM FOR CC~FLUENCE<<<
>>>>>F,fW CCitlPUTE Vi~RIOUS CCit,FLUENCE[) STREAM VALUES<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
DJTAL NUMBER OF STREAMS = 2
CONFLUErlCE WiLUES Ut'ED FOR HWEPErWErn t'TREMl 2 ,~RE,
TII1E OF CONCENTRATIOI'4(i'lIN.) = 1'3.'32
RAINFALL INTEnSITYIINCH/HR) = 2.46
TOTAL STREAM AREACACRES) = 19.00
PEAK FLOl~ RATE (CFS) AT CONFLUENCE = 37.46
.. conFLUENCE DATA **
ST~EAM RUNOFF
NUl,mER ICFS)
1 ~52. 20
2 :37. 46
INTENSITY
I INCH/HOUR)
2. 4J~i
AREA
lACRE)
26.00
19.00
Tc:
(MIN. )
19.15
1:3.82
2.459
~*~****$*~*****,****~*~:***********WARNING***********************~;*****~:****
IN THIS COMPUTER F'ROCiRAr", THE CONFLUENCE VALUE U~<ED IS B?i'=<E[)
ON THE RCFCU-JC[) FORMULA OF F'LATE D-1 AS UEFAUL T VALUE. fH1'O' FOF\~1ULA
('I I LL rKlT NECESSAR I L Y RESULT I I', THE MAX I r"U~1 VALUE OF PEAK FLOW.
*************~:************************************************************
RAINFALL HHEN'3ITY ANI) TIr.1E OF CONCENTRATION RATIO
CONFLUENCE FORt'IULA USEr:> FOF, 2 '3TREAMS.
1'1.
** PEAl<
3TREA~1
NUMBER
1
FLOW RATE
RUNOFF
CCF~<)
<:::<:::.76
TABLE **
Tc:
(MIN. )
18.:32
1':;' t>-:
2.45'3
? ..d,.'7IC:;
INTENSITY
( INCH/HOUR)
53
,-,
,::"0 "':I.-I
I
I
~
I
I
I
I
I
I
-,
I
I
I
I
I
I
I
I
I
,I
:1
E';:, T i ~'ATES ARE
A:;:, FCLLC!llJ~:'; ~
rc(J'1IN.) =
19.1'5
COMPU'TED CONFLUENCE
PEAK FLOW RATE(CFS) =
TOTAL AREA\ACRES) =
_n_' _..
:::''1. .jlJ
4~5. (10
**************************************~*****;~**********************~********
FLOW PROCESS FROM NODE 606.00 TO NODE 607.00 IS CODE = J
;
;
i
I
f
I
{
f
.--------------------------------------------------------------------.--------
>)>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((( , '
>>)>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOWI(((((
============================================================================
DEPTH OF FLOW IN 42.0 INCH PIPE IS 31.2 INCHES
PIPEFLOW VELOCITYCFEET/SEC.1 = 11.7
UPSTREAM NODE ELEVATION = 1064.00
[:'lJI'JN';:iTREAM rW[:'E ELE'/AT I OU = 105'::'.40
FUXILENGTHCFEETl = ~520.00 ~li,NNHm'S r, = .01::1
ESTIMATED PIPE DIANETERCINCHI = 42.00 NUMBER OF PIF~S = 1
PI PEFLm'J THRU '"UE'AREA (CF~, I = ::::9. JO
fRAVEL TINE(MIU.1 = .74 TCCMIN.1 = 19.89
i'
B~:
*******~:********************************************************************
FLOW PROCESS FRrni NODE
f~,07. UO TO NODE
607.00 IS CODE =
,-',
.:;.
-----------------------------------------------------------------------------
'>)>jADDITION OF SUBAREA TO MAINLINE PEAK FLOW(((((
.----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR F<AINFI~LL rrjTEN'3ITYCWCH/HOUFO =
~30 IL C:LAS~3IF reAr I ON ISH B II
COMMERCIAL DEVELO~1ENT F<UNOFF
3UBAF<EA AREA CACRE~;I = .00
TOTAL AREA(ACRES) - 45.00
TCIMINI = 19.89
2.3:::5
COEFFICIENT = .8725
'SUBAREA RUNOFF ICFSI =
TOTAL RUNOFFICFSI =
.00
'::'9.30
********:"***********:~*******************************************************
FLOt'} F'ROCE::::S FROM rWVE
607.00 TO rwr'E
607.00 IS CODE =
1
----------------------------------------------------------------------------
>>>>>VESIGNATE INDEPENDE~f STREAM FOR CONFLUENCE(((((
----------------.------------------------------------------------------------
----.------------------------------------------------------------------------
TOTAL NUMBER OF STREAMS = L
CONFLUENCE VALUE:o; USED FOR INr'EPEI'WENT ~3TREAM 1 ARE:
TII'!E OF CONCENTRATION(~lIr~. I = 19.'"'9
F<AWFALL INTEN'3ITY(Il'KH/HRI = :2.3'3
TOTAL STREAM AREAIACRESI = 45.00
PEA~: FLm~ RATE ICFSI AT CONFLUENCE = '39.:j1)
~:***:~***********************~:**************:~*:~*******~:*:~********:~**********~:
FU)i~ F'ROCESS FROM NODE
60::::.00 TO NODE
609.00 IS CODE = 21
-----.-------------------------------------------.------------------.-.---------.
>>>>>RATIONAL ~ETHOD INITIAL SUBAREA ANALYSIS<((((
----------------.------------------------------------------------------------
----------------.------------------------------------------------------------
AS~:;UMED INITIAL SUBAREA UNIFORM
DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE)
TC = K*[ILENGTH**31/IELEVATION CHANGEI]**.2
INITIAL SUBAREA FLOW-LENGTH = 800.00
UPSTREAM ELEVATION = 1069.70
DOWNSTREAM ELEVATION = 1065.10
ELEVATION DIFFERENCE = 4.60
TC = .393*[( 800.00--JI/( 4.601]--.2 = 15.968
100 YEAR RAINFALL INTENSITY I mCH/HOURI = 2.691
SOIL CLASSIFICATION IS "B"
SINGLE-FAMILYl1/4 ACRE LOTI RUNOFF COEFFICIENT = .7739
SUBAREA RUNOFFICFSI = 19.37
TnTAI a.R~A(A'-:R~<;l = q_~O TOTAL RUNOFFICFSI = 19.37
so
54
I
I
I
I
I
-
,
I
I
I
I
I
I
I
I
I
I
I
I
I
~~***~~:;I::~~:~:**:~*~:*~:*~:**'~'~~*~:****~:**~:~***~******~;***1:******'~;';'~*~:*~~:*~~:1:*:~~::I::~**
FLOW F'ROC.ESS FROM rJODE
609 ~ 00 TO rJO[)E
610.00 IS CODE =
.~i
--------..--------------------------------------------------.------------.-------
)))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(((((
:))>>>USING COMPUTER--ESTIMA1"ED PIPESIZE (NOtJ-.PRESSURE FLOW) . .
~===========================================================================
DEPTH OF FLOW IN 27.0 INCH PIPE IS 20.3 INCHES
PIPEFLOW VELOCITYIFEET/SEC.1 = 6.0
l~STREAN NODE ELEVATION = 1065.10
J)O~JNS;TJ;E?i!1 NO[)E ELEVATION = 1061.20
FLOWLENGTHCFEET) = 750.00 MANNING'S N = .013
E:3T I it<< TED PIPE D I AI1ETER I I tJCH) - 27. 00 tJut,1BU< OF P I PES, = 1
PIPEFLOW THRU SUBAREACCF:3) = 19.37
i'FlAI/EL TIMECMIN.'; = 2.07 TC(I'Hi'J.1 = 1::::.04
*1:**$'*********~****~:******************S**~:1:****************************:b**~:*
I=LmJ F'ROCES'3 1='ROi-'l NODE
610.00 TO tJDI:>E
610.00 IS CO~C =
:=:
-----------------------------------..-----------------------------.-.------------
~>)))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(((((
----------------~------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL INTE1~SI.rY(INCH/HOUR) = 2.517
.::-U I L C LP::3:'::; 1 F I CAT:i Or; ! :'~i 11 B IJ
SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7677
SUBAREA AREACACRES) = 9.00 SUBAREA RUNOFFCCFS) = 17.39
fOTAL AREA(ACRES) = 18.30 TOTAL RUNOFF(CFS) = 36.75
rc.(i"nrJ) = 1~~:.U4
*~:*******~:~:**********~:**:~*******************************~:**********:~********
FLOW J~ROCESS FRC~I tJO~E
61 U. 00 TO i'-~OI/E
610.00 IS CO~E =
I
--------------------------------------------------------------------------------
. . . >>i:E:~\IG;'~HTE If"H:EPE:-'jD2JJr ;:,TF;:E{W'1 FUF( COI'~FLUEI'JCE<.<<<<
':')'>>)'AND COMPUTE VARIOUS CONFLUEI~CED S'fREAM VALUES<<<<<
-----------------------------------------------------------------------------
----------------------------------------------------------------------------
ro'rA~ NUMBER OF 51-REAMS = .~
CONFLUENCE VALUES LI8ED FOR IrJi~EF~ErJDENT STREAM 2 ARE:
TIME OF CC~CENTRATIONIMIN.) = 18.04
RAlrJFALL INTENSITY(lN('H/t~R) = 2.52
TOTAL STREAM AREAlACRESI = 18.30
PEAK FLOW RATECCFSI AT CONFLUENCE = 36.75
** OJNFLUENCE DATA **
S'TREAt'l RUNOFF
NUMBER ICFS)
1 :::9. :30
:2 3E." 75
INTEtJS'I fV
l ItJCH/HOURI
P,REA
IACRE)
4~5. 00
1:3.:]0
T..::
<tUN. )
1':~. 89
1:3.04
2.3:35
2.517
***i:*~:***~~:~:.********************WARNING***********************~**********
HJ TH 1:3 CCit1PUTER PROGRAM, THE CONFLUENCE VALUE U>;:iED I S BASED
C~ THE RCFC&WCD FORi-'lULA OF PLATE D-l AS DEFAULT VALUE. THIS FORMULA
('JILL NOT NECESSARILV F:E'3ULT IN THE MAXIMUM VALUE OF PEAl< FLOW.
******~:**************************************************~:****************
RAINFALL INTENSITV AND TIME OF CONCENTRATION RATIO
CGt,IFLUENCE FOF(MULA USEr:> FOR 2 ','TREArtIS.
** PEAK
'3mEi~~1
NUMBER
1
FLOW RATE
RUNOFF
lCF>;:i)
117.7:3
124.1:21
TABLE **
T,-'
<t.JIN. )
1::<04
19.89
55
g\
ItJTEN'3ITY
l ItJCH/HOUR)
2.517
2.385
2
COMPUTED CONFLUENCE E'3TIt'IATES ARE AS FOLLOWS:
,
l'o-rAL AREA(ACRESJ ;
f,.'::. .jU
'r.t~~*~.t:~t~t~***********~**********;~:~*:~:~~~~*:t**;~********~:~~*********;~:~~**~*:~~
I ~~~~~~~~~~~~~~~~~~~-~~~~---~~~:~~-~~-~?~~---~~~:~~-~~-~?~~_:_--~------------
I
>>:> >>COMPUTE PIPEFLm'J TRAVEL T IiVlE THRU SUDAr,EA<< <<<
I ==~~~~~~~:~~=:~~:~:~~::~~::~~:~=::::::~~=~~~~::~::~~~:=~:~~~~~~~~===========
DEF'TH OF FLm'j IN 4:3.0 I1'KH PIPE IS 34. '" HKHE'3
PIPEFLOW VELOCITYlFEET/SEC.) = 12.7
L~STREAM ~JDE ELEVATION = 1058.40
DCtlJ1'~STREAr1 r~O[:rE ELEI,/;lTION = 1052. ::;:0
FLOWLENGTHIFEET) = 520.00 MANNING'S N = .013
ESTI~1ATEV PIPE DIAr'IETER(Ir'JCH) = 4::::.00 r~I_'l"!BEH OF PIPE::; =
F I F'EFLO,J THRU ~iUBAREP, I CP;:i) = 124. 13
TRAVEL TIMElMIN.) = .68 TCIN!N.l = 20.57
I
I
, ...............*..*.****...........***.........**..............*.......**...
I
,
I
1
FLO~J PROCESS FROM NODE
611.0U TO riOfE
611.0U IS CODE =
.'
~~.;.
!t.
,-',
':'
.-------.-------------------------------------------..-------------------------
>:>i4I>I:>lTIOrJ OF SUBAF:EA fO I'IAINLINE PEAf< FLOI'J<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL INTENSITYlINCH/HOUR) = 2.341
c;:'OIL CL.A'~~'3IFICATION 1'3 "B"
COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8722
SUBAREA AREAlACRESI = .00 SUBAREA RUNOFFICFSI = .00
TOTAL AREAIACRES) = 63.30 TOTAL RL~OFFICFSI = 124.13
TC cr111'~ ) = ,20 . 57
I *:~*********~****************************************************************
, =================~==========================================================
I
I
FUJI') PROCESS FROM rJO[:'E
1::,11.00 TO rlCiDE
611.UU IS CODE =
1
...----------------.-----------------------------------------------------------
>>>>>DESIGtJATE INDEPENDENT STREAM FOR CONFLUEtJCE<<~~
TOT"L NUt-lBEF: OF '3TRE!\~!'::' = "-
COIWLUENCE VALUES USET> FOli INDEPENDENT
TIME OF CONCENTRATIC~(MIN.l = 20.57
RAINFALL INTENSITYIINCH/HRI = 2.34
fOfAL STREAM AREA lACRE';:') = 63. :]0
PEAl< FLOW RATEICFS) AT CONFLUENCE =
,::'TREAM
1 ARE:
124.13
I ~:k~**********~*********************************~****t********i:*~;***********~:
FLOW PROCESS FROM NODE 612.00 DJ NODE 613.00 IS CODE = 21
-------.----.-------------------------------------------------------------------
I ================-=========================================================-=
>>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<<
I
I
I
I
ASSUMED INITIAL SUBAREA UNIFORM
DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE)
TC = l<*[(LENGTH**31/IELEVATION CHANGEI].*.2
INITIAL SUBAREA FLOW-LENGTH = 75U.00
UPSTREAM ELEVATION = 1063.60
Um~tJ'3TREAril ELE'IATIOrJ = 1059.20
ELEVATION [:>IFFERENCE = 4.40
"re = .393*[( 750.00**3)/( 4.40)]**.2 = 15.499
100 YEAR RAINFALL INTENSITYIINCH/HOURI = 2.735
:-30IL CLAti~\IFICATION IS IIBlI
SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7754
SUBAF:E,~ RUNOFF l C:F~i) = '17. ::;:2
TOTAL AREA(ACRES) = 8.40 TOTAL RUNOFFlCFS) = 17.82
~v
%
~ -------------------------------------------------------
,
I
I
,
I
1
I
I
I
...'
~..-l
I
I
I
I
I
I
I
I
I
I
I
I
I
F:L!j~IJ
~.~: E: :~.o '.;
NOJ)E
t:'.l.~;.Ou l"t) f..JODE
614.0U IS l.00~ =
.~j
\"'::,~:.
FI-~:():1
~>>j~CO~PUTE PIPEFLCIW l"RAVELTIMEfHRU SUBAREA((:'"
)))~>~3ING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<
". .~ ". -',
=====,=======================================================================
DEP1H OF FLOvJ ItJ 27.0 ItKH PlF"E Ei 19.0 ItJCHE:;;.
PIPEFLOW VELOCITY (FEET/SEC.) = ~;. '3'
UPSTREAM NODE ELEVATION = 1059.20
DCil>JN'inREAM NOr,E ELEVATION = 105'3.60
FLOWLENGTH(FEET) = 700.00 MANNING'S N
ESTIMATED PIPE DIAMETERIINCH) = 27.00
PIPEFLOW fHRU SUBAREAlCFSl = 17.82
TRAVEL TINEIMIN.) = 1.96 TCIMIN.l = 17.46
1
I
i
i
I,
;
i
-- . (11:3
NUMBER OF PIPES =
$~*****1;~:~:~**i:~:~~:~*:~**i:'b**~****~:****;~****:~***~:*~:******~:***:~*:~i:***i:~;*:!:*:~~:*1:**
FLOW PROCESS FROM NODE
614.00 TO t,Or'E
614.00 IS CODE =
.:::.
--------------------------------------------.---------------.----------.-----.--.-.
.;..:..:
>>AO[JITION OF :3UB{.REA TO 1'1{~H,LII',E PEAK F'-O\~<<<<<
k
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL INTENSITYCINCH/HOURI = 2.562
SOIL CLASSIFICArIOt, 13 "8"
:3INGLE-FAMILY(1/4 ACRE LOTI RUNOFF COEFFICIENT = .7694
SUBAREA AREAIACRESl = 8.30 SUBAREA RUNOFFCCFS) =
TOTAL AREAlACRESI = 16.70 TOTAL RL~OFF(CFS) =
TC(MI~) = 17.46
16. ::~6
::<4.17
:~**~:**********#************:~**************************:~**************:r******
FLOW PROCESS FROM NODE
614.00 TO NODE
614.00 IS CODE =
1
-.---------------------------------------------------------------------------
>>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<~
>>>>>AN[) Cm1F'UTE VAPIOUS CONFLUHK:ED ~iTREAN VALUES<<<<<
-----------------------------------------------------------------------------
-----.----.--------------------------------------------------------------------
TOTAL NUMBER OF '~"TF:EAI"1'3 = ,...
C()r~Fl_UE~-JCE \/ALUE~::; U~'::;EJ) FOH II'JDEPE1'JDENT
TII"1E OF CorlCEI'Hf~:ATIm, (I'IH,.) = 17.41=,
RAINFALL INTENSITYIINCH/HRI = 2.56
TOTAL STREAM AREACACRESI = 16.70
'-"EI-\K FLOt.J RATE ICF':;l ;,T CONFLUENCE =
STF(EAI'I
:2 AHE.:
34.17
** CONF'LUENCE DATA **
STREAM R~~OFF
NL~BER ICFSl
1 124.13
'2 ;34..17
;,REA
IACF:E)
6:3.:::10
16.70
Tc
lr,JH, , )
HHENSITY
( INCH/HOUR)
2.:341
20. ~57
r
17.46
2.562
~******i;~**~***************~:*****WARNING****************~:*~:~:**************
II'< THEi COMPUTER PROGRAM, THE CONFLUENCE VALUE USED IS 8ASED
ON THE RCFC&WCD FORMULA OF PLATE 0-1 AS DEFAULT VALUE. THIS FORMULA
.'JILL NOT NECE:3:3ARIL Y RESULT 11', THE rlAX I MUt,' VALUE OF PEAl< FLOl'j.
**~:~:*******~:****~:**************~:*************~:**********~:**********~:**~:***
RAINFALL INTENSITY AN[J TIME OF CONCENTRATION RATIO
CONFLUENCE FORMULA USED FOR ~ STREAMS.
* * F'EAI<
STF:EA~I
NU~lBER
I
FLOl'J RATE
FWNOFF
(CFS)
1:39.5:J
155.36
2. :341
TABLE '1'*
T..:
ININ.)
17.46
20.57
I ~nENS I TY
I INCH/HOUR)
S9.7
2.562
",
.:.
COMPUTED CONFLUENCE ESTIrlATES ~\flE AS FOLLOWS:
PEAK FLOW RATEICFS) = 155.:36 TelMIN.) =
20.57
57
TnTAI ^O~8(81-R~C\ ~
~::~ n n (I
I
I
I
I
I
I
I
,: :-~
I
I
- J
I
I
,,-..J
I
I
I
I
I
I
I
I
I
~:~*:~****:~~~.t:~~~~.;:~.~**;~*:~:~*******:~***:~:~*:~;,,~**:~:~;~.~:~**:~:~**:~'~:t**:~:~;~*~;t.~~:**:~:~*:~:~:~
FLO~J PROCESS FROtl NODE
\::;,14. Uu TO UODE
615.(10 IS COLE =
.----------------------------------------------------------------------------
. .>))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<>",
)))))USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)(<({<
----------------------------------------------------------------------------
-----.-----------------------------------------------------------------------
[:'EF'TH OF FLCil>J IN od . 0 Il'KH PI F'E IS 39. 0 HKHES
PIPEFLOW VELOCITYIFEET/SEC.1 = 13.4
UPSTREAM NODE ELEVATION = 1052.80
DOWNSTREAM NCWE ELEVATIC~ = 1045.00
FLOWLENGTHIFEET) = 720.00 MANNING'S N = .013
E~'TIf1ATEV F'IPE [>IA~IETER I INCH) = 51.00 NUMBEFI OF F'IPES = 1
1=' I F'EFLCil,j THRU ':::;UBr.F:EA (CF':') = 10,5. 36
TRA'jEL TIMElmr1.) =, .90 TClr1Ir1.1 = 21.47
~***:~***$**:~*~**:~************************************:~*w********:~***********
FLOW PROCESS FROM NODE
1':;,15.00 TO rWVE
615.00 IS CODE =
t
------------------------------------------------------------.----------------
,'.,)AVDITION OF SUBAREA TO MAINLINE PEAK FLOW<(<<<
---------------------.-------------------------------------------------------
----------------------------------------------------------------------------
t
100 YEAFI RAINFALL INTENSITY lINCH/HOURI = 2.287
~3()II_ CLASSIFICATION IS UBlI
CO~]MEF~(:IAL DEVELI)PNENT RUNOFF COEFFICIENT = .8717
SUBAREA AREAIACRES) = .00 SUBAREA R~~OFF(CFS) = .00
fOTAL AREA(t~CRES) - 80.00 TOTAL RUNOFF (CFS) = 155.36
TCIMINI = 21.47
********:***:~*:~*:~:~***:~*************************************************:~*****
FLOW PROCESS FROM tJODE
tS15.00 TO NODE
615.00 IS CODE =
1
----------------------------------------------------------------------------
)))))DESIGNATE INDEPENDENT STFlEAM FOR CONFLUENCE<<<<(
----------------------------------------------------------------------------
----------------------------------------------------------------------------
rOTAL rWrJE'ER OF :::'TREAr,1>:' = 2
CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE:
TINE OF CONCENTRATIONlMIN.1 = 21.47
RAINFALL INTENSITYIINCH/HRI = 2.29
rOTAL STREAM AREAlACRESI = 80.00
F'EAK FLO\'! RATE I CF3 I AT CONFLUENCE = 155. 36
~******~:********~:****~:***********~**********~:*************~*********~:*******
FLOW PROCESS FROM NODE
616.00 TO NODE
617.00 IS CODE = 21
--------.---------.------------------------------------------------------------.
>>>>>RATIONAL METHO[:' INITIAL SUBAl':EA Al'~ALYSIS<(<<(
-----------------------------------------------------------------------------
----------------.------------------------------------------------------------
ASSUMED INITIAL SUBAREA UNIFORM
DEVELOPMENT IS SINGLE FAMILY 11/4 ACRE)
TC = K*[ILENGTH**31/CELEVATION CHANGE)J*..2
INITIAL SUBAREA FLOW-LEM3TH = 600.00
UPSTREAM ELEVATION = 1058.00
[)Ot~NtnREA~1 ELEVAT I or1 = 1 0~;4. :JO
ELEVATION DIFFERENCE = 3.70
re = .393*[( 600.00**3)/1 3.70)J**.2 = 14.035
100 YEAR RAINFALL INTENSITVIINCH/HOURI = 2.889
SOIL CLASSIFICATION IS "8"
SINGLE-FAMILYC1/4 ACRE LOT) RUNOFF COEFFICIENT = .7802
SUBAREA RUNOFF(CFS) = 14.87
TOTAL AREAIACRES) = 6.60 TOTAL RUNOFFICFSI = 14.87
g"t
*" ;~~I~ * ;~~~:~~~. ~~~I~ *~~~;~ * * * ~;;:' ~ ~ * ;;;,. ;;;;~* * * ~; ~:'~: ~*;; * ~:~I;~*:" * *; * * * * * * * * * ** 58
I
,
,
II
I
I
,
I
I
I;
I
I
I
I
I
I
I
I
I
I
I
I
I
;. .;-.::Cl~l!-~F'UTE F'lr-L::FL.,_)'~-: : :-",;,-:'/EL-i" .lfl~ J'/-if~U :.:;.Ub:4F:EA<".,.
. . .:'>USl~ll~ C-Ct"~F'UTEF~--E:::,TIr-1ATE[) F'IFE:31 ZE (t~c:rJ-F'F:E::i:::UF:E FLC~'J)""
----------------------------------------------------------------------------
-----------------------------------------------------------------------------
DEPTH OF FLOW IN 24.0 INCH PIPE IS 19.0 INCHES
PIF'EFLOl'J VELOCITYIFEET/'3EC.) = 5.6
UPSTREAM NODE ELEVATION = 1054.30
DOWNSTREAM NODE ELEVATION = 1050.70
FLOWLENGTHIFEETI = 700.00 MANNING'S N = .013
ESTIMATED PIPE DIAMETERIINCH) - 24.00 NUMBER OF PIPES = 1
PIPEFLOW THRU SUBAREAICFSI = 14.87
TRAVEL TIMEIMIN.I = 2.09 TCIMIN.I = 16.12
*****~:**:~~;***~:**:~*~**~*.~***:~***:l:*****************~;*;k*~;*:I:****.~i::~*:~***~~*******
FUX' PROCE'3S FROJ1 NODE
61:3.00 TO NODE
618.00 IS CODE =
'-'
'-'
-----------.-----------.----------.---------.--.--------.----------------.----.------.
)))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
------.----------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL INTENSITY I INCH/HOURI = 2.676
20IL. CLA2;':;IFICATIOt'J E; "8"
SINGLE-FAMILYll/4 ACRE LOT) RUNOFF COEFFICIENT = .7734
SUBAREA AREAIACRES) = 9.60 SUBAREA RUNOFFCCFSI = 19.87
TOTAL AFlEA IACRES) ,- 16.20 TOTl'lL RUrJOFF ,CF:31 = 34.75
rCIMINI = 16.12
~::
****:~****:~***~*****:~:,****************************************i************:~*
FLOW PROCESS FROM NODE
61:3.00 TO NODE
618.00 IS CODE =
1
----------------.------------------------------------------.------------------
)))))CESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<<
)))))ANP COMPUTE VAJ~IOUS CONFLUENCE[:' ,3TREAN VALUES<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
TOTAL NUJ1BER OF :3TREAr1S = 2
CC~FLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE:
TnlE OF COJ'JCErnRATION(i'1H~.) = 16.1:2
RAINFALL INTENSITYIINCH/Fml = 2.68
TOTAL STREAM AREA,ACRESI = 16.20
PEAK FLOW RATEICFSI AT CONFLUENCE = 34.75
*,' Cor~FLUENCE (:'ATA "''''
~;TF~EArI RUrJOFF
NUMBER ICFSI
1 1~;~:5. 36
T....
CMIN. I
21.47
16.12
HJTENS;ITY
I INCH/HOURI
2.287
:2. 67E.
f~F<Ef;
(ACRE)
:::10.00
16.20
:2 34.75
~,
~:~:~***********$******************WARNING******~:~*******~**~;**:~:~***********
rr~ THI'3 COMPUTER PROGRAM, THE CONFLUEI'K:E VALUE USEr> I:::i BA;3Er>
ON THE RCFC:l,~JCD FORMULA OF PLATE [)-1 A'3 DEFAULT VALUE. THIS FORr1ULA
..JILL r~OT NECESSiARILY RESULT I/'~ THE rlAXH'lUM VALUE OF PEAK FLO..J.
*******************************************~:****************************~;*
RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO
COrJFLUENCE FORMULA USEr:> FOR 2 STREAMS.
'" '" PEAl<
STREAf.1
NUtilBER
1
FLCM RATE
RUNOFF
(CF~3)
151.41
185.05
~
TABLE *'"
T,-'
IMIN. I
16.12
21. 47
HJTEN'i:iITY
, INCH/HOURI
2.676
2.287
2
COMPUTED CONFLUENCE
PEAf< FLm~ RATE ICFSI
TOTAL AREAIACRESI =
ESTIMATES ARE AS FOLLO~JS;:
= 185.05 Te IMIN. I =
'36.20
21. 47
5~
~
~
~
I
j
~
I
;:-;:)
I
I
-'
I
I
I
I
I
I
I
I
I
I
I
r:-LOl:J Pf:~OC E::~;t:, FRC1i.1 f~CiI:'E
._ r'..;I~iJ... c.
619.00 I~ CODE =
-',
._'........ .
--.--------------------------------------------------------------------------
...~j)(OMPUrE PIF'EFLGW -rRAVEL1'I~:E l"HRU SUBAREH'~::~.-.
)>>>>USING COHPL~ER-ESTIMATED PIPESIZE (NON-PRESSURE FLOWl
=====~===========,===========================================================
DEPTH OF FLOW IN 63.0 INCH PIPE IS 47.3 INCHES
PIPEFLOW VELOCITYIFEET/SEC.l = 1b.6
UPSTREAM NOr'E ELEVATION = 104,3.00
D(~NSTREAM NODE ELEVATION = 1039.60
FLOWLENGTHIFEETI = 1040.00 MANNING'S N = .013
ESTIMATED PIPE DIAMETERIINCHl = 63.00 NUMBER OF PIPES = 1
r::> IF'EFLO~lJ THRU SUBAREA (CFS) = 1:;::5.05
TRAVEL TIME(MIN.I = 1.63 TCIMIN.l = 23.11
********;t**********************************~w*******************************
FL(~ PROCESS FROM NODE
619.00 TO NOVE
619.00 IS CODE =
::::
.----------------------------------------------------------------------------
>}>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
============================================================================
100 YEAR RAHJFALL INTEn~iITY<INCH/HIJUF:l = 2.196
:30IL CLA~.;SIFICATIOr.J IS liEU
COMMERCIAL DEVELOPMENT RUNOFF COEFFICIEnT = .8709
SUBAREA AREAIACRESI = .00 SUBAREA RUNOFF(CFSI = .00
f()ThL r-iF:EA (ACF\E€';) = 96.20 TOTAL HUNOFF (CFS) = 1:.:~~5. 05
TClMINI = 23.11
****************************************************************************
F:LGl'j PROCE~i~' FRO~1 rKtCE
61':-1.00 '(0 rWCE
619.00 IS (ODE = 11
.________._______________________________________.________0______---------------
,,)}>[~NFLUENCE MEMORY BANK R 3 WITH THE MAIN-STREAM MEMORY<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
"t;.-!; 'l"tAlrJ
STREi'lI"l
NUi"IEIER
1
STREAM CONFLUENCE CATA .-
RUNOFF Te INTENSITY
(CFS) (tUN. ) IINCH/HOUF::>
185.05 23.11 2.196
AF::EA
(ACRE)
96.20
:-j: * 'MEMORY
STREAM
rWr-IBEF<
1
BANf< 1I
RUNOFF
(CF!;:i)
2669.40
J CONFLUENCE CATA -.
Tc INTENSITY
IMIN.l IIM~H/HOURI
29.9:3 1.905
AF<EA
(ACRE)
1112.50
~:*******************1:************WARNING************************:~*~;*******
IN THI'3 COMPUTER F'ROCiRAt-1, THE Cor~FLUENCE VALUE USEf:> I3 BA'3E[)
ON THE RCFC&WCD FORMULA OF PLATE f)-I AS DEFAULT VALUE. THIS FORMULA
,nLL NOT NECESSARILY RESULT IN THE ~lAX IMUM VALUE OF PEAI< FLOl'J.
**~;*~:**~:**:~**************~******************************~:*****~*******~:*~:~:
'I' '" PEAK
Sn':EAt'I
NUt'!BER
.l
FLOl'J RATE
RUNOFF'
(CFS~)
224:i. 93
TABLE **
Tc:
(Mm.1
2:3. 11
29.93
INTENSITY
( INCH/HOURI
2.1':/6
1. ';'05
2:329.92
COMPUTE.D CONFLUENCE
F'EAI'~ FLO~J RATE (CFSI
TOTAL ARE~) (ACHES I =
ESTIMATES ARE AS FOLLOWS,
= 2829.92 TeIMIN.1 =
120:'::.70
~
2'3.';t3
*************************i**************************************************
FLOW PROCESS FROM NOf:>E 619.00 TO NODE 620.00 IS CODE = 3
,- -- - --, - ,. - - - - -- - ---, - - - - - - -- - - - -- -- -- - - - -- - - - - - - - - -- - - -- --- -- ------ - - - - - - - -- -'0
>>>>}COt'IPUTE PIPEFLOW TRA'iELTIME THRU '3UBAREA<<<<<
I ==" == == = = = = ==== ==== ==== === = === = = =" -,
,
I
I
I
I
I
I
,
I
I
I
I
I
I
I
I
I
I
I
__. o._________________________________
-----._--.._-------------------------------
DEF'TH l:il::' FLO!rJ Ii'~ 120. (I ri"~CH F'IF'E l:~, :3'3..2 11"JCHE'3
FIF'EFLOW VELOCll.Y~FEET!2EC.) = ~~.6
UPS'fREAM NODE ELEVATION = 1039.60
(:'O:'JtJ:3Tf~EAM NODE ELE'mTIO~J = 1034.40
FLOWLENGTHIFEETI = 520.00 MANNING'S N
ESTIrlATED PIF'E DI~\I>iETEF: (INCH) = 120.00
PIPEFLOW THRU SUBAREAICFSI = 2829.92
TRA'/EL nnElrlIN.) = .3::;: rCU'lIPJ.) = 30.31
= .013
rIUt'18ER UF F'I PE::; =
2
~~,~~*************~**********************************************************
FLOW PROCESS FROM NODE
620.00 TO fJO[:E
620.00 IS CODE =
.------------------______0_-------.--------------------________________________
~~~)>ADDITION OF SUBAREA '1'0 MAINLINE PEAK FLOW\<\\\
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL INTENSITYCINCH/HOl~) =
SOIL CLASSIFICA'frON IS !IC'1
COM~:ERCIAL DEVELOPMEN'[ RUNOFF
SUBAREA AREAIAa~ESI = .00
lOTi~',i_ ;::~REA (ACRE~3) = 120:::.70
TC(MINI = 30.31
1.:::92
COEFFICIENT = .8784
:3UBAREA RI...INOFF ICFGI = . uu
TOTAL RUNOFFICFS) = 2829.92
~~..
~l
~.
~:~;
;~********:~*************:r*********************************************:t******
FV:'l'J F'F:CCES!~' FROtl NOVE
620.00 TO rwr'E
620.00 IS CODE =
1
,----------------------------------------------------------------------------
>>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<<
-----------------------------------------------------------------------------
.----------------------------------------------------------------------------
TOTAL Nur.'IBER OF 'O'TREAM/3 = "'
CONFLUENCE VALUES USED FOR INDEPENDENT
THIE OF CiJNCEtHRATIOtJ(I'IHJ.) = ::<0.31
RAINFALL INTENSITYCINCH/HRI = 1.89
TOTAL STREAM AREAIACRESI = 1208.70
PEAK FLOW RATEICFSI AT DJNFLUENCE =
'OiTREAM
1 APE:
2::::29.92
:~**:~**:~************:~*****~:*****************~*****************~******:~**~:***~:
FLOW PROCESS FROM NODE
700.00 TO NODE
.701.00 IS CODE =
21
-----------------------------______0______-------.----_____.________________.____
,',', , >F:ATIONAL METHOD INITIAL SU8AJ~EA ANALY'3IS<<<<<
-----,-----------------------------------------------------------------------
----------------------------------------------------------------------------
ASSUMED INITIAL SUBAREA UNIFORM
DEVELOPMENT IS SINGLE FAMILY 11/4 ACRE)
TC = Ke[ILENGTH*.31/IELEVATIC~ C~ANGE)]...2
INITIAL SUBAREA FLOW-LENGTH = 650.00
UPSTREAM ELEVATION = 1045.00
DOWNSTREAM ELEVATION = 1041.00
ELEVATION DIFFERENCE = 4.00
TC= .393*[( 650.00**3)/( 4.00)J**.2 =
100 YEAR F:AINFALL INTEW3ITY 1 HJCH/HOUH) = 2. :338
SOIL CLASSIFICATION 18 11BIl
'3INGLE-FAJ~ILYI1/4 ACRE LOTI RUNOFF COEFFICIENT =
SUBAREA Rl~VJFFICFS) = 20.33
TOTAL AREAIACRESI = 9.20
/:.:
14.4Tl
. 77'37
20.33
TOTAL Rl~OFFICFSI =
**********************************i:$**************************~:*************
FLOW PROCESS FROJ~ NODE 701. 00 TO N(J[)E 702.00 IS CODE = :)
- - - --- -- - -- - - -- - -- - - -,- -- - -- - - - - -- - -- - - - - - - -- - - --- - --- - - - - - - -- - -- - - - - - - - - -- -- -<2>1'
>>>>>COMPUTE PIPEFLOW TRAVELTHlE THRU SUBAREA<<<<<
>>>>>USING COMPUTER-ESTiMATED PIPESIZE (NON-PRESSURE FLOWI<<<<<
----------------------------------------------------------------------------
-----,-----------------------------------------------------------------------
DEPTH OF FLOW IN 27.0 INCH PIPE IS
PIPEFLOW VELOCITYIFEET/SEC.1 = 6.5
19.7 INCHES
GI
I
!
I
I
I
I
I
I
:~
I
I
I
I
I
I
I
I
I
I
I
I
I
l)Cl\;J~4::';TF(E~)M NODE ELE\/AT I ON =
FLOWLENGTH(FEET) = 650.00
ESTIMATED PIPE DIAMETERIINCHI
PIPEFLOW THRU SUBAREAICFSl =
TRAVEL TIMEIMIN.1 = 1.66
10:37.00
r-lr;"\i'~I'J I t~t~ ) :':' ;'.1 = . 1) -,-.3
- 27.00 NUMBER OJ=
PIPE:::-; .:::
1
2U.JJ
TCUHI'~.) = l6. 1~;
:J:***~~1:****:~*$***************************~:***~;***;~**************:~*******~:*~:~:
702.00 IS CODE ~
:3
FLOW PROCESS FROM NODE
70:2.00 TO NOOE
-----------------------.----.----------------------.----------------------------
>>>>>Ar~ITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
---------------------.-------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL INTENSITYIINCH/HOUR) = :2.674
:::iOIL CLA::iSiIFICATIOrJ It:\ "e"
SINGLE-FAMILYll/4 AC~E LC~) RUNOFF COEFFICIENT = .8176
SUBAREA AREA(ACRES) = 8.50 SUBAREA RUNOFF(CFS) = 18.58
TOT AL AREA (ACRE'3) = 17. 70 TOT AL RUNOFF I CFS) = :::8. 91
Te ([11W = 16.1::5
~~
:~***:~;~***************~**~****************************************:~**********
702.00 IS CODE =
1
FLOW F~OCESS FROM NODE
702.00 TO NOVE
----------------------------------------------------------------------------
..>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<<
>>>;:C,ND COMFUTE VARIOVS CONFLUENCE[) :3TREAM VALUES<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
TOTAL NUMBER OF STREAMS = :2
CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE:
"TIME OF CONCEN'fRATI0N(MIN.) = 16.15
f</:;Ir,IFALL IrrrEN~::ilTY (II'JCH/HFU = 2.67
TOTAL STREAM AREAIACRESI = 17.70
PEAl< FLo('J WHE ICF'~;) AT COI'JFLUENCE = ;J::::.91
:,,,,: CONFLUENCE DATi" **
STREAM RUNOFF
N~1BER (CFS)
1 2:~:29. 92
::: :Y::.9l
Tc
(~1m.)
30.:31
16. l5
HJTHJSI T'i
I mCH/HOU}'()
1. ':::92
:2.674
AREA
(t'"-iCF:E)
1208.70
17.70
~.~:~*~*~::~1:$***~i:***~**********~**~:WARNING****~**~:*****i~:**************i:*:~i:1:
ItJ THIS COMFUTER F'ROC;PAM, THE CONFLUENCE VALUE U'"Er) IS BASEL)
ON THE RCFC&WCD FORMULA OF PLATE 0-1 AS DEFAULT VALUE. THIS FORMULA
iHLL rJOT NECESSAPIL Y RESULT IN THE MAX Hlurl VALUE OF PEAl:: FLO~J.
i:***:~**:~~:****~**************:~*******~:*******i:***~:******~:*******~:**********
HArr~FALL INTENSITY Arw TIME OF CONCENTRATION PATIO
CONFLUENCE FOfiMULA USE V FOR 2 ~;TREAr"I~;.
:,:* PEAI<
t'TREF\11
NUr.JBER
1
TABLE **
Te:
(MIN. )
16. 1~5
30.:31
I NTErJS I TV
I INCH/HOUR)
:2.674
1. :3'5'2
A~; FOLLOW3:
Te ItHN. I =
Cor,IPUTED CorWLUEUCE
PEAl< FLOi>J RATE ICFS)
TOTAL AREAIACRESI =
E~;TI I"IATE'S ARE
= 2857.45
1:2:26.40
30.31
'"
FLOW RATE
RUNOFF
(CFS)
1546.99
2:357. 45
:+: **:+::+: * ***:t: :t::t::t: ** ** ** **:+: :t:*:t::+: ***:1: * **:+::+: * :t:** * ** ***:+: * :t::t:* * :t::t:* * *:+: ****** * * **:+: ***:+: ** *://: ~
FLOW PROCESS FROM NODE 702.00 TO NOVE 703.00 IS CODE = :3
.----------------------------------------------------------------------------
>>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
>>>>>USING COI'1F'UTER'-ESTII1ATED F'IPESIZE <l'KiN-PRESSURE FLOW) <<<<<
'2
----------------_._----------------------------------------------------------
----,------------------------------------------------------------------------
II
I
,
I
I
,
"
I
,
,
,
,
I
I
I
I
I
I
I
I
F'iPEFLOW \;ELOCITy(FE~liSEL..} = ~~.c'
UPSTREAM NODE ELEVATION = 1034.40
DOWrJS'TREAM ~JODE ELEVATIOrJ = 1028.80
FLOWLENGTH(FEET) = 550.00 MANNING'S N
ESTHIATE[) PIPE [:'IAMETER(IrJCHI = 120.00
PIPEFLOW THRU SUBAREA(CFSI = 2857.45
TRAVEL TINEer'fIN.) = .40 TC(MI~J.) =
= .01:3
NUMBER OF PIPES =
.:.
::<0.71
***:~************************************************************************
FLOW PROCESS FROM NODE 70J.00 TO NODE 703.00 IS CODE = 8
>>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLrn~{"..
----------------------------------------------------------------------------
----------------------------------------------------------------------------
lOO YEAR RAINFALL INTENSITY(INCH/HOURl =
:':::~CIIL CLA~3~3IFICATI()N IS lIe'.
COMI"1ERCI(,\L [:E'/ELOPMErH r~UNOFF
""UB,~F(EA AREA lACRES;) - .00
DJTAL AREAIACRESI = 1226.40
TCIMIN) = ::<0.71
1. ::::7:::;
COEFFICIENT = .8782
::;UBAREA RUNOFF ICF',)) = .IJIJ
TOT"AL RUNOFFCCFS) = 2857.45
. ~',
:.~;-
********~:***:~*****~*********************************************************
FLOW PROCESS FROM NODE '703.00 TO NODE
708.00 IS CODE =
1
))>>>DESIGNATE INDEPENDENT STREAM FOR CDNFLUENCE<<<<<
----------------------------------------------------------------------------
-------------------------------.---------------------------------------------
TOTAL NUi"I[IEH elF ~iTREAr~IS = L
Cm4FLUENCE VALUES U>;;:ED FOR HWEF'ENDEtH ':;TREAl'1 1 ARE:
TIME OF CONCENTRATIONIMIN.1 = 30.71
RAINFALL INTENSITY(INCH/HRI = 1.88
TOTAL STREAM AREA(ACRESI = 1226.40
PEAI< FLOW RATE l CF'; l AT CONFLUEtJCE = 2:357. 45
~:**~:~**~:********~:***********************************~:*****1:******.~**:~***~:***
FLOW PROCESS FROM NODE
704.00 TO tJOVE
705.00 IS CODE = 21
>>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<<
------------------------------------------------------------------------"----
----------------------------------------------------------------------------
ASSUI1ED ItJ I TI AL SUBAF:EA UN I FORM
DEVELOPMENT IS SINGLE FAMILY 11/4 ACRE)
rc = K*[(LENGTH**3l/(ELEVATION CHANGEl]**.2
I~ITIAL SUBAREA FLOW-LENGTH = 630.00
~~STREAM ELEVATION. 1040.00
DOWNSTREAM ELEVATION = 1036.00
ELEVATION VIFFERENCE = 4.00
rc = .393*[( 630.00*.3l/l 4.00IJ...2 = 14.228
100 YEAR RAINFALL INTENSITY (INCH/HOURl = 2.867
~:.:;OIL CLASSIFICATION IS lie"
SINGLE-FAMILYll/4 ACRE LOT) RUNOFF COEFFICIENT = .~~~~
SUBAREA RUNOFFICFSl = 22.63
TaTAL AREAIACRESl = 9.60 TOTAL Rl~OFF(CFSl = 22.63
~***************************************************************************
FLOW PROCESS FROM NOVE
70~5. 00 TO NO[,E
706.00 IS CODE =
:3
>>>>>COMPUTE PIPEFLOW TRAVELTIME THRU ':;UBAREA<<< < <
>>>>>USING COMPUTER-ESTIttIATED PIPESIZE (NON-PRE:3SURE FLOt~) <<<<<
BC\
--------------------_.~------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 30.0 I~CH PIPE IS 19.7 INCHES
PIPEFLOW VELOCITYlFEET/SEC.l = 6.6
UPSTREAM NODE ELEVATION = 1036.00
nnt>m""TRF~M NIlf:>l= FI FV~TTmJ = 1 n:,,<?, nn
'3
I
I
I ********************..****************************************.*************
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
il
, -.-"......-..... ,... ..........,.
.3U ~ I) (I
NUMBER OF PIPES .
ESTIMATED PIPE DIAMETERIINCHl =
PIF'EFLOW T~RU SUBAREA(CFSj =
TRAVEL TIMEIMIN.1 = 1.77
, - ,
..:....:-. "-"-'
11:1.99
TC UlIrJ.) :::
FLOW PROCESS FROM NODE
706.00 TO NODE
706.00 IS CODE =
:=:
--------.---------------------------------.--.-.----------.------------.----------
>>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(((((
:::::::==========================================================================
!
:[00 YEAR RAIr,FALL I1'HEI','3ITY(II'KH/HOUR) = 2.6,",8
':,OIL CLA':;";iI FI C,o,T I ClrJ L,; "e"
3HKiLE"-FA~iILY(1/4 ACRE LOTl RUrWI7F COEFFICIENT = .':;'1::::0
SUBAREA AREA(ACRES) = 9.60 SUBAREA RUNOFF(CFSj =
TOTAL AREACACRES) = 19.20 TIJTAL RUNOFFICFS) =
TC(~IIrJ) = 15.99
21.11
43.74
;~*********************************~*****************************************
FLC~ PROCESS FROM NODE 706.00 TO NODE 706.00 IS CODE = 1
~;-
~~::
-----.-----------------------------------------------------------------------
>>>>>[:-ES;IGNATE ItWEPENI:-ENI ,,;'TREAi1 FOR CONFLUENCE<<(<(
> > > > >ATW COt'lPUTE VAR I OUS' CONFLUEtKED STREA,'1 VALUES<: (<: (<:
----------------------------------------------------------------------------
----------------------------------------------------------------------------
TOTAL NUMBER OF~ STREAMS = 2
CC~FLUENCE VALUES USED FOR INDEPENDENT
TmE OF CONCENTRATIm,C~lm.) = 15.99
RAINFALL INTENSITYIINCH/HR) = 2.69
TOTAL STREAM AREAIACRESI = 19.20
PEAK'FLOW RATE(CF~S) AT CONFLUENCE =
,,;'TREA~I
2 ARE:
4:).74
<,
.. DJNFLUENCE DATA **
STREAr-j RUNOFF
NUMBER CCFSI
1 28~i7 .. 45
INIENSITY
C mCH/HOUR)
1 . '~:7:=:
AREA
(flCRE)
122E..40
I'J.20
T(.:
Ci'1IN.1
::10.7.l
15.9',
2.6:3:3
4:3n 74
.~**~1;*****i:****.~t*****:1:******:~***WARNING***:~******:~**:~************~:*******
I I', TH I '3 CDMPUTER PROGF<AM, THE CONFLUEI'KE W,LUE U'3ED I '3 BAS'ED
ON THE RCFC&WCD FOR~JLA OF PLATE D-l AS DEFAULT VALUE. THIS FDRMULA
<'JILL NOT NECESSARILY RESULT IN THE MAXIMU~l VALUE OF PEAK FLOl'J.
********t*****~:*******~:**********************************;~***i:********$***
RAmFALL HJTEW3ITY AND TItlE OF COI'JCENTRATION RATIO
CONFLUENCE FOR~IULA USEr) FOF~ '" S'TREAf'lS.
** PEAK
S'TF:EA~I
NU~1EJEF:
1
FLOl'J RATE
RUNOFF
(CFS)
15:.31.70
2:;:::;:::3. (11
TABLE **
T,=
lrlIN. )
l~i. 99
30.71
1. :378
INTE~6IT,(
CINCH/HOUR)
:2. 6:::::;:
'"
COMPUTED CONFLUENCE
F'EAK FLOW RATE IC:F:31
TOTAL AREAIACRESI .
ES'TIMATES ARE
= 2:::::3::::. 0 1
1245.60
AS FOLLOl%:
Tc(NIN.) =
30.71
***********************************;~****************************************
o.p
.----------------------------------------------------------------------------
FLiJll>J PROCESS FFW~I NODE
706.00 TO NODE
706.00 IS CODE =
12
>>>>>CLEAR MEMORY BANK ~ 3 (<(((
============================================================================
'4
~~*~~**~********~*~***************~*****************************~;;~**********
I - -, ,- -- - ,- - - u, - - - ,. - - - - - . - - . - ,. -, - --- - - . - - ---- - ,- - ,. - ,,' ,. --- ,-- - - ... - -,
;
I
;
I
i
~
I
!
I
.".,
I
,
I
I
I
I
I
I
I
I
I
I
I
I
.'.~~;'MAIN-s'rREAM MEMORY COPIED OI'JTO MEMORY BANK ~ 3
~============================~==============================================
***~****:~******************~****:~***************~*******~*******************
FLOW PROCESS FROM NODE 800.00 DJ NODE 801.00 IS CODE = 21
-----------------------------------------------------------------------------
>>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<<
~===========================================================================
A~':SlIto1EI' I N IT I AL SUBAF~EA litH FORti
DEVELOPMENT IS SINGLE FAMILY 11/4 ACRE)
TC = K*[ILENGTH**31/(ELEVATION CHANGE)]**.2
INITIAL SUBAREA FLOW-LENGTH = 650.00
UPSTREAM ELEVATION = 1051.50
r,OWNSTREAM ELEVATION = 1047.50
ELEVATION DIFFERENCE = 4.00
TC = .393*[( 650.00**3)/( 4.00)]**.2 =
100 YEAR RAINFALL INTENSITYIINCH/HOUR) = 2.838
'30IL CLA'3SIFICATIOtJ I:; "8"
SINGLE-FAMILY(114 ACRE LOTI RUNOFF COEFFICIENT =
,3UBAI~EA RUNOFF (CFSI = 15.69
J"O"J"AL AREACACRES) = 7.10
14.497
.77::':7
15. 6'~
TOTAL RUNOFF(CFSI =
***;~;~***********************************************************************
FLCvJ F'HOCE~3::i FHOM r~ODE
C:Ol.OU TO tJO[:E
802.00 IS CODE =
3
-----------.-----.---------.---------------------------------------------------
>>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
, ' >>>USING COMPUTER-E3TII'lATEV PIPE~;IZE (I'KiN-PRESSURE FLO~J) <<<<<
----------------------------------------------------------------------------.
.----------------------------------------------------------------------------
DEPTH Of' FLOt'J HJ 27. 0 I1'KH PIPE IS 17. 1 I1'KHES
F'IPEFLOi'J '/ELOCITY (FEET/SEC.) = 5..,
UPSTREAtl NO[:'E ELEVATION = 1047.'50
DOt4N:3TREl-i/'l'i NODE ELEVATION = 1 04::{. 50
FLOWLENGTHIFEET) = 750.00 MANNING'S N
ESTIMATED PIPE DIAMETERlINCHI = 27.00
p' I F'EF L 0',) THRU SU8AREA I CFS I = 15. 69
TRAVEL TIME(MIN.I = 2.12 TC(MIN.1 = 16.62
= .013
NUMBER OF PIPES =
1
**********:~************************~****************************************
FLO(.J F'RCicr3:S FRCIM NODE
'0'02.00 TO NODE
802.00 IS CODE =
'.:'
._____________________________________________________-------_____.0_.___------
>>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
-----.-----------------------------------------------------------------------
-----,-----------------------------------------------------------------------
100 YEAR RAINFALL INTENSITY I INCH/HOURI = 2.632
'30IL CU,'3SIFICATION IS "B"
:3HK1LE-Ff;~IILY(1I4 f\CRE Lon RUNOFF COEFFICIEtlT = .771'J
:'3UBAREA AREA lACRES) = 9.30 ':'UBAREA RUI'KIFF ICFSI =
TOTAL AREA(ACRESI = 16.40 TOTAL RUNOFFICFS) =
TCCrlIN) = 16.62
It:.90
:34.5::;:
**************************************************************************~*
FLOW PROCESS FROM NOVE
:0'02.00 TO NODE
803.00 IS CODE =
::t
.----------------------------------------------------------------------------
>>>>>CCitlPUTE F'IPEFLm~ TRAVELTIME THRU SUBAF,EA<<<<<
>>>>>U'3ING COMPUTER,-ESTII1ATE[' PIPESIZE C1~ON-PRESSURE FLOWI <<<<<
<\\
============================================================================
DEPTH OF FLOW IN 33.0 INCH PIPE IS 25.8 INCHES
PIPEFLO~J VELOCITYIFEET/SEC.1 = 6.':;
UPSTREAM NODE ELEVATION = 1042.20
DOWNSTREAM NODE ELEVATION = ID38.70
, FLOWLENGTH (FEETl = 670.00 MANNING'S N = .013
'5
I
I ****************:h******~*************:~********~*~**:~********~*********:~****~
-r. ::.3
I
i
I
.i
I
I
:':il
I
,
I
I
I
I
I
I
I
I
I
I
I
PIPEFLOWfHRU SUBAREACCFS) =
-rRAI/EL 'r'l~jE(MI~J_j = 1.61
.:..:4.. 5::::
TC: CflIr.l.) :::
1:::::.. 2:3
FLOl,j F'F\DCESS FROt:1 ~lODE
:::;:(1:3.00 TO i"JODE
803.00 IS (-ODE:
----------------------------------------------------------------------------
)))))ADDITION OF SUBAREA TO HAINLINE PEAK FLOW(<<<<
I..
----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL IrrrENSITYIINCH/HOURI =
SOIL CLASSIFICATION IS "B"
COMr!ERC I AL DE'/ELOF't1ENT RUNOFF
SUBAREA AREAlACRESI = .00
TOTAL AREAIACRESI = 16.40
TC(I~IN) = 18.23
2.. :~02
,
,
,
~ '
COEFFICIE~r = .8734
SUBAREA RUNOFF(CFS) =
TOTAL F~UNOFF(CFS) =
.uo
::'::4.5::;:
***************************:~************************************************
FLOW PROCESS FROM NODE
:,:03.00 TO r10DE
803.00 IS ('ODE =
1
.: ~.'
.-------------------------------------.---------------------------------------
)))))DESIG~ATEI~DEPENDENT STREAM FOR CONFLUENCE<<<(<
.----------------------------------------------------------------------------
-----------------,-----------------------------------------------------------
l"OTAL tJUMBER OF S"TREAMS = _
COhlFLUErJCE VALUES USED FOR INDEPErWENT
TIME OF CO~CEtnRATIO~IMHj.1 = lB.2:J
RAINFALL INTENSITY(INCH/HR) = 2.50
TOTAL STREAM AREAIACRESI = 16.40
PEA!< FLOt'j RATE (CFS) AT CONFLUENCE =
STREAM
1 ARE,
:34. ~58
*****~****~;~;***********~;****************~*****~;*:~***********************~:**~
FLOW PROCESS FROM NODE
:304.00 TO NODE
805.00 IS CODE =
21
j})})RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
ASS~1ED INITIAL SUBAREA UNIFORM
DEVELOPMENT IS SINGLE FAMILY 11/4 ACRE)
TC = K*[ILENGTH**31/1ELEVATION CHANGE)]**.2
I~ITIAL SUBAREA FLOW-LENGTH = 800.00
UPSTREAM ELEVATION = 1048.00
DOWNSTREAM ELEVATION = 1043.20
ELEVATION DIFFERENCE = 4.80
-r'c = ~393*[( 800.00**3)/( 4.80)]**.2 - 15.833
100 YEAR RAINFALL INTENSITY I INCH/HOURI = 2.703
SOIL CLA'3SH7ICATIOtJ IS "B"
SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7743
SUBAREA RUNOFFlCFSI = 16.75
TOTAL AREA(ACRES) = B.OO
':L
16.75
D~TAL RUNOFF(CFS) =
****~:**~**~:***********~"*****************************************************
FLO';) F'ROCES:S FROM NODE
B06.00 IS CODE =
.,.;..
:;::05.00 TO NODE
>>>>>COMPUTE PIPEFLOW TRAVELTIt'lE THRU SUBI~I,EA<<<<<
)))))USING COMPUTER-ESTIMATED PIPESIZE lNON-PRESSURE FLOWI<<<<<
----------------------------------------------------------------------------
--------,--------------------------------------------------------------------
DEPTH OF FLOI~ IN 27.0 INCH PIPE IS 17.9 ItKHES
PIPEFLOW VELOCITY(FEET/SEC.) = b.U
UPSTREAM NODE ELEVATION = 1043.20
DCi~JNSTREA1'1 tJo[)E ELEVATION = 1040.80
FLOt~LENGTH I FEET) = 450. 00 W\NtH ~G 'S N = . 013
ESTU1ATED PIPE DIANETER (INCH) = 27. 00 NU~1BER OF PIPES =
PIPEFLOI~ THRU SUBAREA(CF'3) = 16.75
TRAVEL TIMElMIN.) = 1.26 TC(MIN.) = 17.09
qz...
1
6'
I q',""'''''',
I
,
I
I
i
I
'!
,
I
I
I
I
I
I
I
I
I
I
I
I
I
~**'~'::~.**~;$':.:~~i:*~;1.-;:::.~:~:~*1:':::~*1:.I:~:~'I::l::::*:~.~:'~1:'!::!.:~*:::****'~;~~*'I:::;$;l:'!:*;~~::~.,:.~'~~.~:~~.!.
FLCii;J F'F~OCE~;S FRCil-1 i'40[:!t
::;:(If,;..OO TO i'~O[:'E
;~06.0IJ IS l:00E :::
..>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(((((
=::: ==:;:; ==:::::::;::::;;;::: == =:::;;;; =:=::: ==::::::;;:;;:;;;;:::::::::::::::::::::::::::;;:;::: ==::: =;:;;:::::::::::::::: =:::: ==::::::::::::::: ==;;::::: == = ==:;;:;;;::::::::::::::::::::::::::::::
100 YEAR RAINFALL INTENSITY I INCH/HOURI = 2.592
SOILCLAS':iIFICATIOtJ I'~ "B"
SINGLE'-FAtHLY(1I4 ACI~E LOT> F:UfKiFF COEFFICIENT = .7705
SUBAREA AREA (ACRES) = 7.70 SiU8AREA RUNOf~F (CFS) =
TOTAL AREA (ACRES) = 1'5.70 TOTAL RUNOFF (C:F:3) =
TCltlItP = 17.09
15. :3::;:
i
i
! ~
j.
;
r
I
I,'
i
:)2.1:3
***************:~*****************~:********~*********************************
FLC~ PROCESS FRC~ NODE
::;:06.00 TO NODE
806.00 IS CODE :::
1
----------------------------------------------------------------------------
, , >)>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<((((
>>>>>t-':1ND CCIJ'r~PUTE VA},\10UG CONFLUENCEO GTREAJ'1 VALUES<<<<<
r.,'
.,.
~t
~,'
~;
----------------------------------------------------------------------------
--------.--------------------------------------------------------------------
TOTAL NUMBER OF STREAMS = 2
CONFLUENCE VALUES USED FOR INDEPEffi)ENT
TIME OF CONCENTRATION (MIN. I = 17.09
RAINFALL INTENSITYIINCH/HR) = 2.59
TC~AL STREAM AREAIACRES) - 15.70
PEAt( FLOW RA1"E{('FS) AT COrJFLUENCE =
S fREAtl
2 (,iRE,
32.13
*. COM=LUENCE DATA **
STREA~I RUNOFF
N~iBER (CFS)
J 34. :;:::
2 32.13
;'"
2.:::i92
i';REA
(ACRE)
16.40
15.70
,>.
ItHE~bITY
( INCH/HOUR)
2. 50~:
Tc
(i1U,. )
1 :::.2:3
17.09
****:~*******************~,********WARNING*****************:~**:~***~,*:~*****~:*
IN THI'3 CO~IPUTER PROGf~:Ar-l, THE CmWLUENCE V{.',L1-'E Ut;ED Ei BASED
O~j THE F\CFCn,JCD, FORMULA CF PLATE 1)-1 ASi [:EF;:,ULT '/ALUE. THIS FORr'IULA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
*********~:*******~:****~,****************************~,**********************
RAINFALL I/'HEN'3ITY AtW TH1E OF CONCEI'HRATION RATIO
CONFLUENCE FORMULA USED FOR 2 STREAMS.
** PEAl<
F:LOt'J R,o,rE
F:UNOFF'
(CP;)
64.::;5
65.~i9
TABLE **
Tc
(MIN. )
17.09
1:3. 2~3
2. ~502
HHErJSiITY
( H,cH/HOUR)
',iTREAM
NU~~8ER
j
2.592
:2
COMP~rED CONFLUENCE
PEAK FLOW RATE(CFSI
TOTAL ,'iF:EA (ACRES I =
ESTIMATES ARE AS FOLLOWS,
= 65.59 "rc(MII~.) =
32.10
1 :::~. 2:~(
:t*****************~******~*******:~******************************************
FLOW PROCESS FROM NODE
806.00 TO tKiDE
807.00 IS CODE =
:3
----------------------------------------_.~----------------------------------
>>)>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(((((
>)>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)(((<<
----------------------------------------------------------------------------
--,--------------------------------------------------------------------------
OEPTH OF FLm, IN 42. 0 II~CH PIPE IS 29.:3 INCHES
PIPEFLOW VELOCITYCFEET/SEC.) = 9.0
UPS'TREAM NO[:'E ELEVATION ,= 103:3.70
DOWNSTREAM NODE ELEVATION = 102:3.80
FLOI>JLENGTH C FEET) = 1520. (10 r.1ANN I NC; "3 N
ESTIMATED PIPE DIAMETERCINCH) = 42.00
PTPEFLOW THRU SUBAREA(CFS) = 65.59
~
- .01:1
NUMBER OF PIPES =
1
fD1
I
I
I
I
I
,
I
I
,
-
-
-
I
I
I
I
I
I
I
I
;~**:~**:~*:~**:~:r***:~***/:**:~***$*:~*.t******:~.~*:~*~::~*:~**:~*~:~$****:~*.~**:!:*:~**:~:~,~:::r~:~~
FLOW PROCESS F~JM NODE
::::07.00 TO !"JOVE
807.00 IS CO~E =
'.::
...-------------------------------------------------------------------------.--
,,)))ADDITIO~ OF SUBAREA ~J MAINLINE PEAK FLOW<""
~===========================================================================
100 YEAR RAINFALL INTENSITY(INCH/HOL~) = 2.312
SOIL CLASSIFICATIC~ IS "CO
CO~~ERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8815
SUBAREA AREACACRES) = .00 SUBAREA RUNOFF(CFS) = .00
TOT"AL AREA(ACRES) = 32.10 'rO'TAL RUNOFFCCF"S) = 65.59
TCiI'lIW = 21.04
*****~*****:~:~***:~******~:*:~***********************************~****~***~****~
FLOW PROCESS FRO~1 NODE
::::07.1)0 TO NOVE
807.00 IS CODE = 11
--------.---.-----------------.------.------------------------------------------
","'>>>CUNFLUENCE ~[E~!Of'Y BANK tt :J t.JITH THE fclAII'J-til'HEAt'l ~IEI>!OF,Y<<<<c
i::..
----------------------------------------------------------------------------
----------------------------------------------------------------------------
.t;:t: PAIN
3TREAI'1
~JUl"-IE1EF<
1
STREAM CONFLUEtJCE DATA **
R~~OFF Te INTENSITY
(CFS) (t1IN.) (IrJCH/HOUR)
65.59 21.04 2.312
AREA
(t:\CF:E)
:32.10
AFlEA
(ACRE)
1245.60
~***~*~:~**1:*****~:i:**i:*t**~****~:**WARNING*:~***~:*******************~:i:***~***
11'< T/-I IS CCilYlF'UTER FRocmAr'l, THE CONFLUENCE VALUE USED I'"' BA'"'ED
011 THE RCFU,,~'JCV FORr1ULA OF FLATE [:i-I A'", UEFAULT VALUE. THE' FORMULA
t.IILL I\I'JT rlECE::3S,o)I~ILY RE'3ULT IN THE ~1AXIMur,1 VALUE DF FEAI< FLot.).
*:~~;:~**:,,*:t:********~:~*************************~:**:~******~:*~::~****:~~:*****~:~::~**
~; * MEt'IOF:Y
~:3TREAJ'r'1
1'-~Ur'If'EF~
I
::: CDrJFLUENCE DATA ,t,,,,
Te INTENSITY
(nHl. ) (HK'H/HOUFn
:30.71 1. :::7::::
COMPU'fED CONFLUENCE
FEAK FLOW RATE(CFSl
TOIAL AREA (ACRES) =
EST! l'IATE'::. 14RE
= 2941.30
1277.70
~J::i FOL.LO~jS ~
Te(rHl'l.) =
:30.71
FLOW PROCESS FROM NcmE
::::07.00 TO NODE
BANK 11
RUNOFF
(cre; )
2::;:':"::.01
,j"" IO'EAK
:::;-rF{E~'-!t'I
i'lUr'IBEF:
.l
FUXI R,::'TE
RU~~OFF
(C:F:~;)
2044.3:::
2':t41.30
TABLE *~:
Tc:
UlIN. )
21.04
:30.71
IrHErl:,H 1'(
( INCH/HOUR)
2. ::l12
1. ::;:7:3
~*:******************************~:*******************************************
::2
807.00 IS CODE = 1~
.----------------------------------------------------------------------------
'> '> '> '> >CLEAF< r-1Er'lOF<Y BAr.lI< 11 .j < "'" ",
--------------------.--------------------------------------------------------
--------.--------------------------------------------------------------------
*~.1:****~:*****$*************1:*************************************~:********:~~:
FLOW PROCESS FROM NODE
::;:CI7.00 TO NODE
807.00 IS CODE = 10
--------------------------------------------------------------------------.---.
~
)))))MAIN-STREAH MEMORY COPIED ONTO MEMORY BANK. 3 <<<<<
----------------------------------------------------------------------------
--------.--------------------------------------------------------------------
***;~************************************************************************
FLO(;j PROCESS FROM rKiDE
900.00 TO NODE
901.00 IS CODE = 21
~8
.------------------------------.----------------------------------------------
I
,
I
"
I
-;)
I
I
I
:.:.;>
I
I
I
I
I
I
I
I
I
1
I
I
I
--..------------.-----.----------
~ .. .~. _.._"_ _. d.~ ... ._. _ ._. ..n n. n.._._ _.. "o_~.. .... .. _.. __ __ __. ... "."
---------------------------------
... .". -._ B_ n.._ __ '..._ "." .. _ __ __.._ .... ._. .... _n _ '.. n. .. "_ _ _ .._ __ _ _ __
;-~.::" _ ;_'f'!EI' j, r..J! T I ~~L ';:'Uf'i:;f'-:i.::i-1 i)i"~ 1. f::'CF~,-j
0EVELO?M~tJr [8 SItJGLE FAr~[L'{ \1/4 ~,:R~j
rc =:: K~i~L~NGT~j.!;~:J)!\ELEVi4]-IQ;J C~IArJGE)]~:'~:.2
I J'.j I r I ~~L :3UBA~~EP, F-L(H:~ ..LENGTH = 60 I) ~ (10
~PST'REAM ELEVA'rIO~ = 1120.50
DCi'.:}t.J-:::;TFt:E{-)J:l ELE\/f.'iTI(JN = 1116.20
ELE'jAT lor'l l>IFFEF-,E~,CE = 4. :JO
Ie = ~393~:[( 600~OO*~3)/( 4.30)J**.2 = 13.619
lOU YE(.~F~ I~:AINF,;~LL lj'.rn::rJ~..rT\((ll\CH,/Hi..::Uf~) =:: 2.';:t:j?
:30IL CLA'::i'3IFIC:ATION IS !1BII
SlNGLE-F"A~IILY(t/4 ACRE L01") RUNOFF COEFFICIErJT ~ .7817
SUBAREA RlINOFFCC;=S) = "L7.45
TO-r"AL Af~EA(ACRES) = 7.60 TOTAL RUNOFF(C"FSj = 17.45
:t:t****:~********~*:~~********$***:~:r*********~**~***~"*~*:~*~:*****:~*~:~*:r~:~*~"*~:~;;~;~
FLO~ PROCESS FROM NODE
'~.jO 1.. 00 TO J'-"IIJI::E
902.00 IS ('ODE =
"-;
------------------"----------"---------"---"."-----------------------------------
ti
j:'"
',~)))COMPUrl PIPEFLOW TRAVELTIME THRU SUBAREA<<<
"'~'}>)"USI~G CONPUTER-ES1"Ir1A"fED PIPESIZE (I~ON'-PRESSURE FLOW)<~
-----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FUXJ T n '2 J. . 0 I,'K:H F' I FE I::' 16. :::: II'JCHE:3
PIPEFLOW VELOCI1"Y(FEET/5EC.j = 8.4
U~~ST'~EAM l~or)E ELEVATION = 1112.30
[:-CI~.J.tJ~.:i-I'F;:EFij'"1 ~;Of::E ELEI/AT I Ci'"J =
i"::"'-Ol:JLEj-~GrH (FEE"r):= ~520 ~ (10
E:.::~:;rI;""li;~-'f"EI) r"IPE: VIP1;~1ErEF;:( INC1'1)
PIPEFLOW "r~iRU SUBAREA (CFS) -
H((,WEl.. TH':!::: '.iIHJ. i = 1. 0::::
1.1. 0:3.00
;""j,ci!'JrJ r NG ':3 N
= ~::1.00
.t"7. 4~":1
Ii'.:: '.r~IH,. I ~,
.:: ~ (I.l :~~
fjUi'"iEjEF~ UF
F'IF'E:::i =
:[
14~,,~:"~5
~:~*~::~~*;~:~~:*****:I:~:*:~*~:**;~****~:**:~****:l:*~:**:~**********:l:*~******;~*;~**~::~~**~:****
f=LOW P~~OCESS FRorl NuDE
91)2 ~ 00 "' U r40VE
90~..OO IS ('ODE =
'::'
"--"--------------------------------------------------------------------------
>~1DLtl-I"ICr~ OF
0UBAREA TO MAlrJL_lrJE f)EAK FLO~J<<'~':'"
"-"---------------------------------------------------------------------------
------------"-----------------------------------------------------------------
100 YE~f~ R~;Ir~I:~LL ItJl"ENSI"rV(INCH/HOURj =
":;(1 I L Cl_A'3';:; I F I C{~) T I or~ I ~3 II B 11
CO~MERCIAL fEVELOPNErJl" RL!NOFF
SUBAREA AREAIACRES) = .00
l"Ol"AL ARE~(ACRES) = "7.60
..:::. :::::.::::.:::
COEF~FICIE~JT = .87~6
SUBAREA RUtJOFF(CFS} =
TOTAL RL~OFF(CFSI =
~oo
17. 4~i
n:IMINI = 14.65
~::!:***:~:~:~********************~**********~******~*********w****;~******:~******~
l'.
FLOtlJ pr,,;;c:cE::;:;:::i FROt'l NODE
902.00 TO rJODE
902.00 IS CODE =
:[
, ":-"> >VE::::; I (ir-~ATE I ~\IDEF'Et~f::EI\IT :"::;TEEI:'~i~"1 F(JR C:OI'.~FLU[r-,.ICE < <: -< -< ,;."
----------------------------------------------------------------------------
--------'--------------------------------------------------------------------
{"OrAL NUMGEF~ OF STF~EA~!S = L
l:ONFLUEI~CE VALlJES USED FOR II~DEPENDENT STREAM 1 ARE:
flnE UF COUCE,',jrFMTIIJrHi"iIi',. j = J.4.I.::,":,
RAINFALL INTEn0ITYlINCH/HRI = ~.d~
rO"i"(-",L ti""I"F-~E{:i~"1 f:;f<EA ({";CF~E:3J::: 7ft 60
F'E;;i< FLCi('-) RA TE -: CF3 i AT CONFLUEI'KE = 17 " 4~5
of; "~; "~: ;.1: ;!::-l: :\: :J: :!: * :): * * :): * :-;; :~::f: :,1: of: :1: *:-1: * *:1: * :}: :~: :\; ;,t; ;1;:;: * :-k * * ;J;:1: * * '" * *..,.. :\: ;!; *:1: 't: ;): '" -'/: ;~;:-I: :}::-): * :1::-}: :};;I; :1; * :l::,}: * ;l::!: :'": :~: :l::\: :~; *:1: ,.,-
F'LOW' ~'ROCE:3'3 FROi') NOPE 90J.00 TO NOPE 904.00 IS' COPE =:21 ' " , '~v
---------_._-------------------------------------"----------------------------.-
)))))RATIONAL METHOD INiTIAL SUBAREA AnALYSIS<<<<<
=~===~==============================~=======================================
ASGUMEr:, UH TI AL ~'UBAFlEA UN I FORt'l
DEVELOPMENT IS SInGLE FAMILY (1/4 ACRE)
G9
I
i
~
I
J
~ *********.***.............*..***....**..*......*.......*.......*....**.....*
I
I
I
I
I
I
I
,
I
I
I
I
I
I
I
I
IJPSTREAM ELEVA"flON::: 1115.::9
L:I::;'.!tJ::\ThEf-\r-l EL[-~tiATiOr.j::: llU;;:;.':;'l)
ELEVATION DIFFERENCE::: 6.40
TC.::: . ::;.:'3t::H: [( 1000. UO;~;;+<i) / ( 6.. 40) J '~:~I:.. 2 :::
100 YEAR RAINFALL INTENSITY(INCH/HC~RI = 2.592
:~CnL CLA€;:::.;IFICI~TIOr~ IS,; "B"
SINGLE-FAMILYC1/4 ACRE LOTI RUNOFF COEFFICIE~r =
SUPAREA RU~~OFF(CFS)::: 21.37
l-O"fAL AREACACRES) = 10.70
1~'H"1 I~~i_
.:.: 1 ; .~.
F':ll'
L.E::i'~t~TH :::
1 OUI).. oe!
17.0::::9
a 'T70::~
TOTAL RU1~OFF(CF8) :::
21.:37
--.~
904.00 IS CODE =
1
FLOW PROC:ESS FRUr1 NODE
904.. 00 . "j'"() i'.~ODE
t--
;:
----.------.---.-----.--.------------.--------.--------.-.--------...----.--------------..---
......;.>>>J)E:3IGNr::iTE: .lNDEF'EI'~r)ENT ~,TF<Er:~r-1 FOr< CO~~FLUEI'~CE< .....~....'..
;. ;. ;. ; >P,i"-.l[) CCt"(F'UTE IjI-H\lOU:~; COr~FLUENCE::D ~::nl~EA~1 V?~LU[~3< . . .
=~==========================================================================
TOTAL ~JUr~JBEli 1'::F !3THE;.)t~p=, = ..:::
C:ONF'LUE!'~CE \/ALUE3 U':..~ED FOR I J'4DEPENDENT
Tlr:'IE C'F~ CC:NCENTF~ATION (r.ntJ.) = 17. O'~-t
RAINFALL INTENSITY(INCH/HRI = 2.59
TOTAL S'rREA~1 AREACAC:RES) =- 10.70
PEAK FLOW RATE(CFS) AT (:ONFLUENCE =
$:k CONFLUE~JCE DATA *~;
~3rEE;l1'1 RUr.JOFF
r.JLlt-'iBEf~ (I':"F~.;)
1 1"7. 45
... 21. ::<7
Tc
(MHJ. )
14. t.::!
17.09
'3TREA!1
:2 A},E:
;~~:'
,".-'
i<:'
~::"
2 i . :37
INTENSITY
( INCH/HOUR)
Ar~EA
2. :::22
(?\CRE)
7.60
10.70
***~***~~***;~***************~****WARNING*******;~****************;,;;~********
2.~i92
IN THIS CC~RUTER PROGRAM, THE CONFLUENCE VALUE USED IS BASED
ON 'l'~iE RCFC&WC[) FORMULA OF PLATE D-1 AS DEFAULT VALUE. THIS FORMULA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
*$**:~*:~*;~*:~*;!;******:~*****************~*******;~*:~*********~****;~*****;~*****
R~It~FALL I~J"rENSI1'Y AND TI~IE OF COrJCENYRA-r'IOtJ RATIO
C:C)NFLUENCE FOr<t"1ULA U'~;ED FOR 2 ~3TREAM~3.
:1:;:: PEi'':\I<
FLO:'J RI~TE
FUf.JOFF
rAE<LE *,',
Tc
crHi~. I
14. 6~~
17.09
HaEi% ITY
( HKH/HOUR)
2.:322
"
:.......
~:3TREPjj~1
i~~Ur-!:G'EF:
(CF~\)
2.5':12
f~'3 F.OLLC)llJ~~i:
Tc (i'IH..) =
COMPU'TEI) COl~FLUENCE
PEAK FLOW RA-TE(CF'S)
TOTAL AREA (ACRES) =
E:3TH'Ji~TE:::; AF,E
.- 37. .-+0
1::::.30
FLOW PF~OCESS FRO~I NOD~
17.0'':/
::35..76
37.40
*;~*~**~********:~:~***********************************************************
905.00 IS CODE =
:)
';':';04.00 TO r~ODE
---------------------------------.------------.--------------------------.------
}})))COM?lITE PIPEFLOW TRAVELTIME THRU SUBAREA~<<<<
???)USING CC~~UTER-ESTIMATED RIRESIZE (NON-PRESSl~E FLOW) <(<<(
----------------------------------------------------------------------------
------------------------------------~---------------------------------------
DEPTH 0]= FLOW IN 30.0 II~CH PIPE IS 20.5 INCHES
PIPEFLOW VELOCITY (FEET/SEC. I = 10.4
UPSTREAM NODE ELEVATION = 1105.00
DOWNSTREAM NODE ELEVATION = 1097.30
FLOWLENGTHIFEETI = 556.00 MANNING'S N
P3THIf.HED F'IPE DIAr"IETEf':(HJCHi = :30.00
PIPEFLOW THRU SUBAREAICFSI = :37.40
TRAVEL TIMECMIN.I = .88 rC(MIN.I - 17.97
qe:.
::: .013
NUMBER OF PIPES =
1
70
I
I
~ ~===========================================================================
I
I
I
J
I
,
,
I
,
I
I
I
I
I
I
I
I
I
..,.... ..'."" h...
", ,....-....---... ..
.': ." .': l ~ ." ." . _ : i.'
.....'..
I "CC::":.~"~' ,:':-j-:;:Ci.j ; ;C,i>:~
",i 1'1 "::; ~ (: 1,:1
.:,.':' i_Ctl.i .;;:
.. --..
;') :,,_:j.-
::IU:_,~ Uti
: .: .,: 1.:41.![.I iT.t I:'~'.j CF
SU2~REA TO ~:~lrJLlj~E f~EAj~
FLCi:j.:.. :.,,..
1 UI) \iEAF;; f~:i'-11~:r-:'hLL lr'~'rE(.i:::,.I f\i \ li',ICHlHDi_'F<) ;;;;
:::,;J I i_ C:!~_A'~,'3 I f~ I Cr-iT I C:'.~ I::':; ,t E~ II
(('MtEf~Cl'~L DEVELGP~ErJT F~UtlOFr
.-', t~." " -.
~~UBAf~EA A:;EA~ACRES) -
COEFF'IClE;~T = ~87J6
SUBAREA RU~J0FF(CFS) -
TO j'j:.:;L he'r ~f.:::Fi~-: (CF:::, j =
.00
::J7 =-40
MOO
"iCliPL ~REA\~Cf~ESJ =
.1 :::;. .~':o
i"C: U'Ul'.J) :=
l7. 'j7
:~~'~*:~*.~:~W~*:~;::~':":~:~~;~,~~*~;~~~:~:~*~:~*~~:***~*;I
;~: :~.: :~~ :-f: :.;' ~~. ::: .!: ;): ::
*~.:~*~~::~~~::~:~*~.~:*:~::~:\::~:~
~LO:.J PROCE3S VROM ~~O~E
';1(1:5. 0 U TO ;'~o.l."L
305.00 IS (OL'[ =
j'[~ESIGrJATEI:~DEPENDE~JT STREAM FOR CONFLUENCE<~'~ . .
.----------------------------------------------------------------------------
----------------------------------------------------------------------------
........
~:;:.:..
r.-_..-
l'orAl N~MBER OF STREAMS; L
CONFLUENCE VALUES USED FOR INDEPENDENT
l"lME OF CONCErJTRA1'IOfJCMltJ.) = 17.97
RAIJ~FALL INTENSITY(INCH/HR) = 2.52
-f"OTAL STREAM AREA (ACRES) = 18.30
PEAJ< FLOW RA1"E(CFS) AT COrJFLUENCE =
::::rliEAN
1 ARE:
37.40
.~:~~:~:~:**~~:~**~:~**~***~:******~::~.~*******:!:***i:$*1:***;~****~:*:~;~*:~**1:~:***~1:1:*****:j:.
FLOW PROCESS FROM NCiDE
':.:tOt::..OO TO t~IJDE
SO'7.00 IS (:ODE =
.2j
~'~)>RATIONAL METHOD INI'TIAL SUBAREA AJ'JALYSIS<<<<<
============================================================================
ASSUMED INITIAL SUBAREA l~IFDRM
VE::\/ELOF'f'IEl'JT I ::i :~31 r'.i("~LE:: F'{~r'l I L\Z (!,I 4 r1CF:E)
l'C = K*[(LENGTH**3)/(ELEVATIOrJ CHANGE)];~:~.2
INIfIAL SUBAREA FLOW-LENGTH = 800.00
UPSTREAM ELEVATION = 1109.10
~OWNS1'REAM ELEVAI'IOrJ = 1104.50
ELEVATIC~ DIFFERENCE = 4.60
TC = .393:!:(( 800.00:~i:3)/( 4.60)]*~.2 = 15.968
100 YEAR RAINFALL INTENSITYIINCH/HOURI = 2.691
:::,OIL CLA:'::;:::ilFICATIO~~ I~'; Hell
SINGLE-FAMILYI1/4 ACRE LOTI RUNOFF COEFFICIENT = .~1~1
SU8AREA RUNOFFICFSI = 17.83
TOTAL AREAIACRESI = 8.10
TOTAL RUNOFF (CFS) =
17.83
*~~:***~~****:!:t*******~:******~:*~:****~:**~:~:*~:*i:*~:*****~:*****~t~::l:****************
FLOW PROCESS FROM MJDE
907.00 TO NODE
908.00 IS CODE =
.3
'~}>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(((((
....>U6ING CC~PUTER-ESTIMATED PIPESIZE IMJN-PRESSURE FLOW)((((~
----------------------------------------------------------------------------
----------------------------------------------------------------------------
tERTH OF FLCit'J HI 27.0 INCH PIPE E, 1:0:.6 H,CHES
PIPEFLOW VELOCITYIFEET/SEC.1 = 6.1
UPS;Tf~EI-WI ~JODE ELE'/ATIO~1 = 1,[ 04. 50
DOWNSTREAM NODE ELEVATION = 1101.20
FLOWLENG'l-HCFEET) = 600.00 NA~JrJINGJS rJ
ESTIMATED PIPE DIAMETERIINCHI - 27.00
PIREFLOW THRU SUBAREAICFSI = 17.83
TRAVEL TIMEIMIN.1 = 1.64 TCIMIN.1 = 17.60
= .013
NUMBER OF PIPES =
1
<\\
*********************~:*****************:~**************~~:****************~:***
1=1 n\;.j PRnC:l="s~;; 1=h.'nM ~Jnf)~ qn:~_ nn Tn Mnnf:': qen::: nn rq I-.nnl=' = .. 11
~ ~~~~~~~~~~~~~~~~====~=======~~~=~~=~=====~~,~~====~==~~~======~~==~~=~~~~="==
I
I
,
,
I
,
I
!
I
.:1
I
I
I
I
I
I
I
I
I
I
I
I
I
"~>;'>A[fDl'rIOrJ OF SU8ARE~
FLCit,:.):.:<;' .'
'J _.,
. . i~:i-i;':..
100 YEAR RAINFALL IN'rENSI1"f(IJ~CH/HO~R);: .2.550
e.OIL CLA~:::,:=,IFICATIO~J 1:'3 lIB"
SIM3LE-FAMILYll/4 ACRE LOT) RUNOFF COEFFICIENT = .7690
:::iUElAF\EA AF\EA (ACRE:::\}:::; ::::.11) S'UE'Ar";:EA F:U~JOFF \ CF~:'l) :::;
l"OTAL AREACACRES) = 16.20 TO"fAL RUNOFFCCFS) :::;
TCININl = 17.60
15. :3':~
3"3.72
~~:**:l:**:~~:~**~:~l**~****:~*****:~**:~~****~:~**********:~***:~*:~********;~******:~~***~
!
("-
FLOl:J F'F:OCES:3 FF~Ot-1 ~!Clr:1E
'::~o:::. 00 TC) ~-~Dr:rE
908.00 IS CODE =
1
.-------------------------------------------------------
~)>>DEslaNATE IrJDEf~ENDErJ.T STREAM F'OF~ (OrJFLUEN('E<(<<~'
, , ,>>AtW CO!'W'UTE VAJ~IOUS COr<l~LUErK:ED '3TREAM VALUE'~;",:<<<,,'
----------------------------------------------------------------------------
-----------------------------------------------------------------.-----------
l"O'fAL "JUMBER OF STREAMS = _
CONFLUENCE VALUES USED FOR I~DEPENDENT
'fII'1E OF CONCEI~TRATIOI~(MIN.) = 17.60
f(f'1I~:F"'L-L rrHEI'bITY(INCH/HFO = 2.c;,3
1'OTAL Sl"REAM AREACACRES) = 16.20
PEAK FLOW RATEICFS) AT CONFLUENCE =
::'lTRE{...~r'l
:: {;r~:E;
~i
3:3. 7~'!.
** CONFLUENCE DA'fA :~*
S"fREAr'j RUNOFF
r,JUf';J81'::R (CF":3)
1 :37.40
f.;F\E{~
1*1--
(rl I i'~. )
17.. '~;17
17.60
I rJTEr-J::i I TV
( I NCH/HOU~~)
(P1CRE)
1:::. JO
16.20
2 .. ~522
2. ~Y.50
:33.72
..
*~*~:~*~~:1:****:~~:****t1:***~:~i:******wARrJING**;!:*t***~:*t~::~~:***:!:********i:*******
IN TH I~; C:(lt1F'UTER PROGI::;:Arl ~ THE CONFLUENCE VALUE USED IS B(.r3ED
O~J -rHE RCFC&WCD FORNUL~ OF PLATE D-1 AS DEFAULT VALUE. THIS FORMULA
lHLL rJOT NECE'~S!;f':ILY HESUL T II', THE MAX H1U!'1 VALUE OF PEAK FLOt.!.
*'l:~i;~;~:~~:****~:**~*~:**~:******:~~********~:*i:****:~~:*t****~******t*****~;~:***:~1;**
CC~CENTRATION RATIO
:2 STREI~r--IS.
fU~II'WALL II'.JTErJ'~;ITY ANO TIr1E OF
COrJFLUENCE FORMULA USED FOR
;~: * PEA!-=::
'3Tf':Ehtl
r,UMBER
1.
FLm.J FATE
f~UrJCifT
(CF'::;)
70. :?6
70.74
2. ~::i22
TABLE **
.-I-r::
lMHJ. )
17. (,0
17.97
INTHl'3ITY
( I NCH/HCiUFO
2.5::iO
"
,~
c c:r-W'UTED C(::i'~FLUErKE
F'EAJ< FLOi'J RATE (CFS)
TOThL AFEAIACRES) =
ESTI~!ATES ARE AS FOLLOWS:
= 70.74 ~:(NIN.) =
1.7. 'J;
:34. ~30
.~~::~**:~*~:~:~*************************:~*******************************:~****~***
FLOW PROCESS FROM NODE
':;0:::. UU TO i'W[;E
9U9.UO IS CODE =
:J
-------------------------------------------------------------------------------
.>>>>>COi'!PUTE F'IPEFLOl'J TF:AVEL TIr!E THRU t.!J8AI":EA<<<,<<
'" >USING COMPUTER-ESTIMATEO PIPESIZE (NON-PRESSURE FLOW)<<
-----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 35.0 INCH PIPE IS 27.8 INCHES
PIPEFLOW VELOCITYCFEET/SEC.) ~ 12.J
UPSTREAM NODE ELEVATION = 1097.30
DO:l/rJSTF:EAM rWDE ELEVATIOrJ ~ 10::;:9.30
FLOWLENGTHlFEET) = 570.00 MANNING'S N
ESTIMATED PIPE DIAMETER(INCH) = 36.00
PI PEFLo\'J THRU '3UBAJiEA (CF;3) = 70. 74
HlA"jEL TIME (rIUJ.) = .79 Te (!'IIN.) = 1:~:. 75
C\tb
= .013
NUMBER OF PIPES =
1.
12
I
.'
,
,
,
I~
I
I,
j
!
I,
I
I,
, ,
I
" ~ 1
I
-'
I
I
I
1
I
I
I
I
I
FLOW I)RCCES; ~'RC,-l ;;:(i~L
'::~u.:t ~ U i) i _,'
:,;,_("';'.l.!,_' 1:':.., l_ui'-t:. :=
.."; .;".:-AVDI r,iC'r'~ CF :::.I_IE;t;f~:EH '1'(1 :"il-1l;'-~L.I~jE F'Et~iJ-:.. F'LU;;~<.<-: .'.
-.---------------------------------------------------------------------------
----------------,------------------------------------------------------------
[00 YE,~F: W;Iplh'.LL HJTErJ~d TV (HKHiHOUFn = .2. ,,163
::iOIL CLASSI~";ICATION IS "B'.
COMMERCIAL DEVELOPMEMf RUNOFF COEFFICIENT = .8731
::3UBAF:EA AiiEA (ACRES);;;; . . 00 ~:,UB~"1r~:EA RUt~OFF (CF:3):= .00
TO-rAL AREA(ACRES) = 84.50 l"OTAL RUNOFFCC-FS);;;; 70.74
fClnIN) = 18.75
*:~**:~*****************;~~***;~*:~***************************:r***~*~:~:~****~:**:~~:*
FLCt:) PF:C'CL:::,::.i Fi':;:C;"'J r.iOf:E
90':).00 fiJ r'~ODE
909.00 IS COGE =
.[
: ';:. '> >:> [/E<:':.; IGi'Jt~TE I r'Jr;'EPE~~DEi'~T ~'3TF~EPII"1 FCiH CC:NFLUEj'.~CE <: <: <: <-:;
--------------------,--------------------------------------------------------
-----------------------------------------------------------------------------
TOTAL NUMBER OF STREAMS = ~
cmlFLUENCE VALUES U'3H) For-, IIHJEFENI:>ENT ,3TF:EAM 1 1'1:,(E:
TIME OF CONCENTRA'rION(MI~.) = 18.75
RAINFALL INTENSITYIINCH/HR) = 2.46
f'O"f'AL srREA~1 AREA(AC'~ES) = 34.50
i~EAK FLOW RA1"E(CFS) A'r CONFLUENCE = 70.74
***:~**********~~:~~:~:i:**~:****i:**~;*:~**i:*:~:*~:**~:*~:**~:***~**i:**:~*:~****~:***********
FLOW PROCESS FROM NODE
',J 10.00 TO /"WVE
911.00 IS CODE = 21
>>>))RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<<
-------~---------------------------------------------------------------------
----------------------------------------------------------------------------
ASSUMED Ij~ITIAL SUBAREA UNIFORM
DEVELOPMENT IS SINGLE FAMILY 11i4 ACRE)
Te = K*[(LENGTH*:t3)/(ELEVATIOtJ CHAI~GE)]**.2
INITIAL SUBAREA FLOW-LENGTH = E60.00
UPST1~EAM ELEVA"fION ~ 1101.70
fOWNSTREAf1 ELEVAT-IOrJ = 1097.10
ELEVA'fIOrJ DIFFERENCE = 4.60
Te, = .393~:[( 66u.OO*:~3)/( 4.60)J**.2 - 14.227
100 YEAR RAINFALL INTENSITYIINCH/HOUR) = ~.ob7
:::d)! L C LA'::;t; I F I CAT I cq'.,j I ~3 >l C l!
SINGLE-FAMILYI1/4 ACRE LOT) RUNOFF COEFFICIENT = .8222
SUBAREA RUNOFF(CFS) = 21.92
TOTAL AREAIACRES) = 9.30 TOTAL RUNOFF(CFS) = 21.92
***~**t***,~**~~**************************~:******:~**~:*********:~*:~**1:~*~****~:*
FLOW PROCESS FROM NODE
911.00 TO /"K!OE
912.00 IS COVE =
/>))>CC~PUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
'" ))USING COM?UTER-ESTIMATEI:> PIPESIZE (NON-PRESSURE FLOWI<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 30.0 INCH PIPE IS 19.6 INCHES
PIPEFLOW VELOCITY(FEET/SEC.1 = 6.4
UPSTREAM NODE ELEVATION = 1097.10
DOWJ~STREAM NODE ELEVATION = 1093.50
FLOWLENGTH(FEETI = E60.00 MANNING'S N = .013
ESTlM,C;TEO PIPE OIAJ1ETER (INCH) = 30.00 NUMBER OF F'IFE:5 =
PI PEFLm'J fHRU ~'UBAREA I CF~') = 21.92
TRAVEL TIME(MIN.) = 1.71 TC(MIN.) = 15.93
1
'\l\
*******i:***:~********"~**:~*~*~:~:**:~:~**:~~:~:***********:~*******:~******************
FLOW PROCESS FROJ1 rW[:'E
912.00 TO NOOE
912.00 IS COVE =
:3
'--:~:~; ;~~;~~~ ~ ~I~II~ -I~I~ - ';I=I~~~~~- ~I~I- ~I~ ~ I~~ ~I~~ - ~,~~;- ;~~I~~ ~ ~~:~: n -- - -- - - n - -- - - - - - -, - -13
j
I ...*...******.****...***********.***...**.....*........*....*.**...........*
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I )
I
100 \"EA?\ RAIt~FALL l!~TEN.::.lr{(Ij.~CH/HUUF;:j - _:':~6')".:r-
'::I=~IL (L.A:~;:-:i.IFICHT.lCrl 1::' liB"
3INGLE'-FAMILY(1/4 ACRE LOT> RUr~OFF i::OEFFICIEtJT = ~ 7740
SUBAREA ~REA(ACF~ES) = 9.~u SUBAREA RUrJCFF(CFS) =
TOTAL AREAIACRESI = 18.50 TOTAL RUNOFFICFSl =
TCIMINI = 15.93
1'3. 1 :~:
41.11
FLOW PROCESS FROM NODE
912.00 Te) ~'~ODE
912.00 IS CODE =
:[
..---------------------.--------------------------------------.------------------
.~~~>DESIGNATE Ir~DEPErJDENT STREAM FOR CONFLUENCE<<<<<
..'.' >>>AND CIJr.-:PUrE: I./ARICiU'3 CONFLUENCED ~:,TREAl':1 V{4LUE:3<,,", ~ "
============================================================================
TOTAL rJUI1BER OF S.fREAMS = L
CONFLUENCE VALUES USED FOf~ INDEPErJDEtJT
TIl1E OF COrJCEl~TRATION(MIN.) = 15.93
RAINFALL INTENSITYIINCH/HRI = 2.U~
TOTAL :3TREAJ-.'1 AJ~EA (ACRE:;) = 1:3. ::;0
PEAK FLOW RATECCFSI AT CONFLUENCE =
:3TEEAj~1
2 (:;F\E:
41. 11
*:f: C()NFLUEI'JCE Or'~TA **
STREA~1 RL!NOFF
1.~UI"1BER I;CFSi)
-r c:
I r.ITEI'b I TY
I HJCH/HOURI
2.46':<
2.694
r:)F~EA
U,CF:EI
34.50
1~3.~jO
( l"111'J ~ )
1 :::;:. 7:~~i
1 ;:i. '~t:3
1
70.74
41. 11
~~:~:~*i:**~*******~:~**********~~~:i:.~*WARNING:~:1:***:~*1::~:~****~:***:~**.~:~~::!:****~:****
IN TH I ~~ CClf:1PUTER PF:OGRAt'-1 ~ THE CONF-LUENC:E VALUE U~iED 1:3 Bt~SED
OI'j THE RCFU,.I'JC!:> FORf1ULA C:F F'LATE f'-:[ A'S VEFAUL T '/ALUE. TH 1:8 FORi'IULA
WILL NOT NECESSARILY RESULT IN THE MAXIM~1 VALUE OF PEAK FLOW.
~:~:*~:**~:1:~*******~:**~:**~:*****~:***~:**********~:********~:*****i:****:~*i:****~:***
RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO
CONFLUENCE FORMULA IJSED FOR 2 51.REAMS.
,:.,,:, F'EAr~
tl TF<E~)t;1
j'~Ui"1BER
fABLE **
F-LO~!j F:A TE
RUrJOFF
(CF3l
101.21
10:;::. :33
Te
a'-UN. )
IrJTEi'-Jt:i-ITY
( INCH/HOURI
2.694
2. 463
15. ':13
1 :=:. 7~5
-'~,
.-
COMPUTED CONFLUENCE
PEAK FLOW RATEICFSI
T01.AL AREACACRES) =
ESTIMATES ARE AS FOLLOWS,
= .to:3.:33 Tcll'HI'.j.l =
1:::. -75
:;i3.00
~:****:~*:~********************************************:~**************~:***~:****
FLOW P~JCESS FROM NODE
91~:. 00 TO No[)E
913.00 IS CODE =
,=\
------------------,-------_._--------------------------------------------------
. . >COMPUTE P'IPEFLOI'J TRA'/ELTIriE nmu SUE<Af~EA< . . . .
". .,..:,.::,<:,.U'~;Ir,Ci COI1F'UTER..E:~iTIr'J!HED PIPE::;IZE CI'JON-PRES'::'UPE FLO\>JI <<<<<
-----------------------------------------.-----------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 42.0 INCH PIPE IS 32.9 INCHES
PIPEFLOW VELOCITYCFEET/SEC.1 = 13.4
UPSTREAM NODE ELEVATION = 1089.30
DOWNSTREAM NODE ELEVATION = 1081.30
FLOWLENGTHIFEETI = 570.00 MANNING'S N = .013
E'::'TIMATED PIPE VIA/YfETERIIrJCHI = 42.00 rlUr'IBER OF PIPES =
PIPEFLOW THRU SUBAREACCFSI = 108.:33
TRA'/EL TI/YiE (MIN. I = .71 TC l/YIIN. I = 19.46
1
\t<JJ
...~.I....~.~.I.~.~.I..'...b.I.~~~.I......I..,.'I..I.*.,.....~**.I..~.*..I..~.'..I..I..~*..I.~'.."..I....,..1...1..1..1....~~..*~.1.'1..~.....,.*.1..1.'
'. ','" .,' ". .r....r- .,......r-...r- 'r- '1'" '.,. ',.'....... ... ,y.. ..,. -7" .......... '1............. ..,...,.,.. ......,...'.. .,........ .. '7' q..7' 'T. .,. 'j' ,,~...,.. q............. .,.......
FLO(oI r"Rl]CE~;t' FRO/YI NODE 913.00 TO NODE 91:3.00 IS' CODE = ::< 4
I .=~========================================================.====~===========
I
-
I
I
,
,
~
I
I
I
I
I
I
I
I
I
I
I
I
I
;. '.:' .;.:.. AI,ll.' 1 I I Cir~ C'r :-:-UBAF:LH -I CI t!H I Ul..l t.~t:. r"'c_,:,F. i- LC\!J".
1 OO'(i:::~-F;: F:AI~'.~FALL I~'rrEi't::dr'{ I~ iNCH/HCUF;:) =
~'~OIL Cl_A'-3'3IFlc.~irIOrJ 1:3 '1:8"
CCI'1r:-"IEF::C. I AL r:'E\./ELOF'~;!Et ~T F:UI'.iOFF:
;3UE:,i.iREA AREA (ACRES) = .00
TO'fAL AREA(ACRES) = 58.00
TCIMINI = 19.46
2. "11=.
COEFFICIENT = .8728
SUBAREA RUNOF-F(CFS)
TOTAL RL~CFF(CFSI =
- .00
1 U:~:. ::i:)
;~:~:~***~:********:~~:*********************~:*******************:~*********~***:~*~:*
,
;.
j:
FLI'::!~:J Pf;:CCE~~ti FF:On NOVE
':d3.00 1"U i'.~()VE
1
91~.OO IS COLlE =
,'.>. . >T'i:;:::."iI("~rlA"rE Ii',rf:EPEl'Jf.:ErJf ::3TF(Et~r-i FOF~ Ct'::NF.LUEj'~CE<.-:..; ,."
.-----.-----------------------------------------------------------------------
-------------.---------------------------------------------------------------
rOTAL NUMBEF~ OF S'TF~EAMS = __
C:Ol'~FLU=:NCE Vr4LUE:3 U'3ED F();.: 11'"JDEF'ENDENT
TIME OF CONCE~TRATION(MIN.1 = 19.46
RAINFALL INTENSITYIINCH/HRI = 2.41
T01"AL 3TREA~1 AREA(ACRES) = 53.00
PEAK FLOW RATEICFSI AT CC~FLUENCE =
'3TnEAr.1
1 AF:;:E:
~k"::
10:::'.33
~~:i::~********************~***~~:********~*****************i:****;::****~*****:~**1:
i=LOllJ F'r:t:OCES'3 FI:;~Ciro1 i'~CiDE
21
914.00 TO NCH:>E
915.00 IS CODE =
~'~)')>RATI0NAL NE1'HOD II~I'l-IAL SUBAREA ANALYSIS<<(".
----------------------------------------------------------------------------
----------------------------------------------------------------------------
ASSUMED INITIAL SUBAREA UNIFOJ~M.
I:'E\jELOPMEr~T I s ~3 I t4GLE:: r':'Al'"1 I L Y (1./ -4 ACRE)
TC:.:: t<:~: [(LEI'~cl.n-p..:l..:~i) I (ELEVATION CHANGE) J **.2
INITIAL SUBAREA FLOW-LENGTH = 700.00
UJ~STREAN ELEVA'fION = 1093.50
DQWNS'TF~EAM ELEVATION = 1088.70
ELEVATIOl~ DIFFERENCE = 4.80
rc.- .:.3'?::::~: t ( 700. OO*:~::j) / ( 4.:~:U)] 'l;;f:.2 :::
100 YEAR RAII~FALL II~TENSITY(II~CH/HOUR) = 2.825
:::':O.i L CLA:::i~31 F I C"1;r I tJf~ I ~0; 11 C I!
::, I IJCi!_E--F,;rlI 1._ Y I 1/4 ACRE LDTI F:UNOFF COEFF I C IEI'JT =
SUBAREA RliNOFFtCFS) = 22.04
TOTAL AREA(ACRES) = 9"50
14.614
. :~:21:J
TOTAL RUNOFFICFSl =
:22.04
*1:.~~*******1:*i:~:~*************:~*****:~*******i:1:**:~**t***:~***t:l:~:****:~*~:********
FLOW PI~OCESS FROM NODE
916.00 IS CODE =
9i!-::i.00 TO I'J()DE
.:'::
. . }COMPUTE PIPEFLOW TRAVELTIME T~RU SUBAREA<<<<<
}}}}}USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOWI<<<<<
._-,--------------------------------------------------------------------------
----------------------------------------------------------------------------
DEPTH OF FLOW IN 30.0 INCH PIPE IS 19.7 IM~HES
PIPEFLOW VELOCITYIFEET/SEC.1 = 6.5
~~STREAM NC~E ELEVATION = 1088.70
DOWNSTREAM NODE ELEVATION = 1085.10
FLtJ~'-lLENGTH(FEET) = E.::60.00 1"!?lNtHNGi/;3 fJ
ESTIMATED PIPE DIAMETERIINCHI = 30.00
PIPEFLOW THRU SUBAREAICFSI = 22.04
TnAVEL TIMEIMIN.1 = 1.70 TCIMIN.1 - 16.32
::: .01:3
rJU~lBER OF PIPES =
1
\e\
i:*:~***~:*~:********************************i:***********************~**:~*******
FLOW F~OCESS FROM NODE
916.00 TO NODE
916.00 IS CODE =
:3
}>>>>AJ)[>ITION OF :::;UBAI,Ei, TO MAII'JLINE PEAI< FLO('J<<<<<
===~~~=~~~~=~~;~;~~~=;~;~~~;;~:;~;~;~;~;~=:==;~~;,;=========================15
I
!
I
,
I ---------------------------------------------------------------~------------
I
I
,
I
I
I
-
I
,
I
I
I
I
I
I
I
I
I
;1;~GLE-F~r1ILY(1;4 ACRE
:;iJEARE~ ~F~EA\~CF~E;!
TljTA~ ~REA(ACRES) =
f'(~~~~ll;~) = 16.32
LO"f) RUNOFF i:OEFFiCIEN"r = .-7728
~~. ~;:.U '::.:Uf.::t-~;;;:~~."'::' r~<Ui'~CF'F (l....{:::;...:.
18.70 rorAL RurJ~:FF\C:FS) ~
1. ';:;. '.:;'u
~~ iJ . ,):::;
******~:******$*~**************:~:~****~:**~:*********~:**************~****~******
FLO~~ PROCESS FROM NO~E
':i' 16. U (I 'flj ~.~Of:E
916.00 IS CODE =
'~j>DESIGr~ATE ItJDEPENDEtJT' s-rREAM FOR CONFLUEr~C-E<<<<~
. . ~').AND COMPUTE VARIOUS COrJFLUENCED STREAM VALUES<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------------------
TOTAL r~UMBER OF S'TREAMS = 2
CONFLLIENCE VALUES USED FOR INDEPEtJDEtJT
fIME OF CO~JCENTRA.TIOrJ(MlrJ.) = 16.32
RAU'JF~LL I ~JTErJ::,IT"{ (rt.ICH/Hfn = 2. t:,E,
fOTAL S'fREAM AREA(ACRES) = 18.70
PEAb~ FLOW RATE(CFS) Al' CONFLUENCE =
:~* LONFLUENCE DATA ;~*
:::iT:'~:E(..:;r-1 RUN(JFF
NL~BER ICFSI
1 10:;:.:3:3
.2 40.'j5
~.:\ TF:EI:4r"1
:2 AF-:E:
40. ';j~:;
E:::'
Ie:
I r-,I fEt-JS I TY
I INCH/HOUR)
2.41:3
{;i~EA
IACREI
:::;:3.00
1:3.70
d'1HL)
.1_':'1. .16
16.32
2.6r:i'~
;~~~:~:;~~::~******i:*~:*1:*~:**:~*~:***i:~***~ARNING**~:~:~:~:**~:~:***1:~:*:!:***********:~***:~*
IN THIS COMPUTER PRO~RArl~ THE COI~FLUENCE VALUE USED IS BASED
orJ 'l"HE RCFC&WCD FORI1ULA CF PLA1'E 0-,1 AS DEFAUL.T VALUE. 'i"HIS FORt':ULA
WILL t~OT I~ECESSARILY RESULT II~ THE MAXlr1UI~ VALUE OF PEAK FLOW.
***~:***~~:*~::~***.~*~*******~;*~:~:**:~**~:*~I:*:~~:!:*:~:~:~~:~::~:~:~*******:!:;~1:*~**:~**:k******
RAI!'JFALL INTENSI'TV AND TIME OF
CONFLUENCE FORMULA USED FOF~
CONCENTRATION RATIO
.:: :::ITREAr:!:::;.
....
8. PEAK FLOW RATE TABLE 8*
SfREA~1 RUrJOFF fc
rJUMBEF:
I C:F'3 )
131.1'7
145.4,}
I rJTErj:3 I TV
\rlm.l
( Il'~CH/HCIUF\)
.[
~
CO~PUTED CONFLUENCE
f::'EA)::: FLO~!J F:ATE (CF:3)
TOTAL ~REA(ACRES) =
11~'. 32
:2.659
J.9.46
2.41:3
E~3 T 1 t'1A Tt:~:::i PiPE
:::: 145.49
71.'70
A~i FCLLO~;J:=;:
Tc ItlIN.) =
J.'~.46
:r****:~*****~.********************~*************************~*****************
FLOW PROCESS FROM t-JODE
'~16.UO TO rWVE
917.00 IS CODE =
.=,
.>.> .>.> .>cOt!FUTE PI PEFUJ(>J n\A'/EL T I ~!E H!t':U :3UBimEA<, -, -, ,
-"'.>USING COMPUTER-ESTIMATED PIPESIZE INON-PRESSURE FLOWI<<<<<
-------------------------------------------------------.---------------------
----------------------------------------------------------------------------
DEPTH OF FLOW It-J 48.0 INCH PIPE IS 35.7 INC~ES
PIPEFLOW VELOCITVIFEET/SEC.I= 14.5
UPS'fREAM NODE ELEVA'TION = 1081.30
DOWNSTREAM t-JODE ELEVATION = 1071.10
FLOWLENGTHIFEETl = 730.00 MANNING'S N
ESTIMATED PIPE DIAMETERIINCHI = 48.00
PIF'EFLOVJ THRU SUBAF,EA ICFSI = 145.49
TRAVEL TIMECMIN.1 = .84 TCIMlt-J.) = 20.30
= . (11:3
NUMBER OF PIPES =
1
t vz..-
****************************************************************************
FLOW PROCESS FROM NODE 917.00 TO NODE 917.00 IS CCIDE = 1
- -~~ .~.~.~ ;~~ ~,;~~~~ - ~~;~;~~;~~~- ~~~:~~~- ~,~,~ - ~~,~~~C~~,~~~~~ ~ -~ - -.. - - - - -- - -.. - - - - - - - -.,(;
I,
~
I
I
1
I
I
,
I
.,
I
I
I
1
I
I
I ---------------------------------------------------------------~------------
,
I
I
I
I
T01~L ~JU~IPEr~ O~ SlREAt-IS = ~
COr~~'LUEN(:E VALUES LiSEI) FOR Ii~DEPENDENT
r I ;--:[ (iF C C~\Ic-Er-rjF-;HT I Ot'4 un tL j = .2 (I. .:.; (I
RAINFALL INTENSITY,INCH/HR) = ~.~b
l"OTAL STREAM ARE~(ACRES):::: 71.70
F'E~W: FLOt~J F:ATE (CF::;;) AT CcrNFLUEt~CE ::::
:3TF:EAf"~
1 {~FE;
14~5. 49
~~*~*~:***~:*~:*1:~:~::~*:~****~:*******~*1:*******~*~**********~~:************~:***:~::~*:~
FLOW PROCESS FROM NODE
'::'1:;::.. 00 TO I'JODE
919.00 IS CODE ::::
,21
"~~'>)'FATIONAL MET~iOD INI'fIAL SUBAI~EA ANALYSIS<<<<<
----------------------------------------------------------------------------
----------------------------------------------------------------.--------.----
ASSUMED Ij~ITIAL SUBAREA U!~IFORM
DEVELOPNE~JT IS SINGL,E F~(IILY (1/4 ACRE)
TC :;:: ~C~: [':LE/'JGTH'~':,~';J) I ~ELE\,'f~Tr()l'J Cj-1t:Jl"'~GE)] **. 2
I ~J I:T I ;::jL :3UBf.;F\Ef2l F'LOllJ"-LEj-',~(~ 1'/'1 = /0 0 ~ 00
UPS'fREA:1 ELEVA'TION = 1085.40
I>c!~':r'J~=; rf~Et;r-1 ELEI.;'I:.'1T I cr.1 - 10::;:0. ;~;o
ELEVATION DIFFEREI~(:E = 4.6Q
l'e = .393*(, 700.00:~*3)/( 4.60)J~:~:.2 = 14.739
100 YEAR RAII~FAlL INTEI'JSITY(lj~CH/HOUR) = 2.812
:::.:cnL C:LA:'l~.:nF'ICHT.IC!r.1 I~:::; "C.ll
SII~GLE'-FAMILY(i/4 ACRE LOT) RUNOFF COEFFICIENT = .8210
SUPAREA RUrlOFF(C'FS) - 23.09
r-OTAL AREA(ACRES) = 10.00
\:::;,
~;;~-
,.
TOTAL RlW~JFFICFSI =
23.09
*~:~:~***i:**:~**:~*i:~:~**~*****:~~;*:~*1:~:*~:~**:~*************,:;~~*;~:*1:':*:~*****~******:1
FLOW PROCESS FROM NODE
'.:::1';t.OO TO NODE
920.00 IS C~DE =
:3
. , >>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<<
~~>)>USlr~G CO~IPUTER-ESTl~!ATED PIPESIZE (NOrJ-PF~ESSURE FLOW)
",..',.':,':..';,
.----------------------------------------------------------------------------
----------------------------------------------------------.-------------------
~EPTH OF FLOW IN ~o.o INC~ PIPE IS 20.3 INCHES
PIPEFLOW VELOCITY(FEET/SEC.) = 6.5
UPf.;TF<E?;~'l 1'~O[)E E::LE\,IA T I O~J::; .l 0:::0. ~~~O
DO~)NSTREAI1 NODE ELEVATIOj'J = 10'76.'70
FLOW~E~JG1'H(FEET) = 750.00 r':ArJNING1S ~J
I:::~;T I i'1:'1TEO PIPE [:0 I fii"lETER I I I'~CH) -. 30. 00
PIPEFLOW THRU SUBAREAICFSl = 23.09
rl~AVEL TH1E':t'lH~.1 = 1.92 TCII'III'~.) = 16.66
::; .013
I',UI"IBEF:
f:'IPE::; =
OF
1
>>:*****;~:t***;~~;*:~*i::~*~:****;t~:*1:~***~::~*,~;****~:****:~**:~;~~*:~;~~*~;*1;*~:~::!:*:~*~:****~:;l:***
FLOW PROCESS FROM NODE
920.00 IS CODE =
~:.:..
9:20.00 TO NODE
>>>>>AO[:oITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
-------~---------------------------------------------------------------------
----'------------------------------------------------------------------------
100 ~:::AR RAIM=ALL INTENSITYIINCH/HOURI = 2.629
;:;OIL CLA'~;tiIFICATIOtl 1'3 "B"
SINGLE-FAMILYll/4 ACRE LOT) RUNOFF COEFFICIENT = .7718
SUBAREA ARE~(ACRES) = 14.40 SUBAREA RUNOFF(CFS) =
rurAL AREAIACRESI = 24.40 TOTAL RUNOFFlCF31 =
TCIMINi = 16.66
:~~':1. 22
52. :30
****************************************~;***P*******************************
FLi~::'lP"WCES'~, FRDt1 N'J[)E' '~20.00 TO NiXE '~20.00 It, CODE = l' .",. \0'0
>>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<<
'" >:> > >Ar-W COMPUTE VAl, I DUG CONFLUENCEV t'TREAM VALUE3< < < < <
=====:====================================================.===================
rOTAL NUI1BER OF STREAW3 = 2
CCt.IFLUENCE '/ALUES USEr:< FOF< HWEPENDEtH STREAt:1
2 i:4RE:
17
I
I
I
I
I
I
-:;';
I
:.:.)
-
,
,
I
I
I
I
,
I
I
I
I
RAI;'~F~LL lrJ-f'E~JSli"{'~INCH/HR) LB63
TOrA~ STRE~M AREA(ACRES) = 24.40
PE~K ~LC~J F~Al'E(CFS) ~T' CONFLUENCE =
** COrJFLUENCE DATA ~*
:::rrREt~rTJ I:;;Ui'~jJFF
I'JU~IBER I CPo)
.!. 14~5. 4'3
52.. :30
ore:
iMII'J. I
20.:30
16.66
HHUJ'o,] IY
( H.JCH/HCiURI
"2. 3~~~;=;
2..629
::j,::. JO
(iF:EA
(r)CF~E )
71.70
24.40
~**~**~;~***:~*:~~:~:~:~**:~*****~:~****$WARNING*i:*******~:****:~:1;*:~~:~*:~:~*********1:*
IIJ THI::3 C'JI'IPUTEI~ PROGRA!'l, THE CONFLUEI'JCE Vr'lLUE USED 1:3 Bi)':~ED
OtJ "fHE R(FC&~C[) FORrrULA OF PLA1"E D-1 AS DEFAULT VALUE. I"HIS FORMl!LA
t:J I LL rJOT i.-~ECE:::;'3t~R IL. Y F\E:3ULT Ii'~ THE r.1AX I t1UM \){~iLUE C)F F'EP,}< FLCH',J..
*1:*~:***~********~********1:*~:**1:*~********1:****:~1::~***i:*~***1;****~:*~;~;*1;*;!:***
RAINFALL INTENSITY AND TIME
CONFLUENCE FORMULA USED FOR
. "'. F'EAI<
;3 rRE{1~r
I'JUI'1BfC:F:
.[
FLO~~; F:t-':,TE
RUt'40FF
ICFSI
17.i. b-/
192.4t
OF CONCENTRATION RATIO
..:. :3TF:Ei;f:'!~\.
TABLE ,',,"
Tc
UHN.1
16. r:.6
20.30
mTENSIT'i
I HJCH/HOUm
2.62';1
2. :3~3::::
E::,",T I fo!A rES (~f(E
= 19:2.4.1
':"16.1 U
i~~; FCLLCt:J:3;:
Tc (1~'JIN.) =
20.30
*~****~*~;****;~**$***~***:~***************************************************
.':':'
COMPU'fED CONFLUENCE
PEA!< F'LOt~; F:PITE (CFS)
T01"AL AREA(ACRES) =
FLOW PROCESS Ff~O~j NODE
'':/20. I) (I TU r'~ODE
92U.00 IS CODE = It
>jCO~JFLUEN(E 1~!E~jORY DANK ~ 2 WITH THE ~!AIN-STRE~~I ~IE~IOF~Y<<
-----,-----------------------------------------------------------------------
-------------------------------------------------------------------.---------
**MA.[ ~J
3TF<E;~J"'1
NU,'IBEH
1
srREA~1 CONFLUENCE DATA **
RUNOFF Tc INTENSITY
(CFS) (MIN.) (INCH/HOUR)
192.41 20.30 2.358
*:}; t:~Er"!ORY
'3TREAi"1
l\IUj,'IBEF~
.t
8t'''M< II
r~Ui'~:JFF
(CFS)
2;J7~i. 04
2 CONFLUENCE DATA **
Tc INTENSITY
(~IHj. ) (HJCH/f-/OUrn
27.63 1.991
AF:EA
IACRE)
96.11)
Af':EA
(ACREI
934. ::;:0
~;*~;*,i;***i:*~*******~******~*******wARNlrJG*~******************~;********~:**~*
IN TH 1:3 CO~lF'UTER PROGRAI1, THE CONFLUEI'JCE V,'iLUE U:~iED 1'3 BA'3E[:'
ON THE f~CF'C:U':(:D FORi"IULA OF PLATE [)-1 A'O:i [)EFAULT 'JALUE. THI:3 Fom'IULA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
1;~~i:.,;;~~:*****:~****************i;*~I:*:~*******~:*~:****~:i;******~*:~***~;*****;~***;~i;
"'* PEA!'::
::i rPEf,~1
NUMBER
1
FLO!,I RATE
RUNIJF'F
(CFS.;)
[','<37.73
:25:]7. 4:::~
TABLE **
lc
II'lHJ. )
20. :30
:27.63
I NTEN"-iIT'i
i INCH/HOURI
2.35:::;:
1. ',1';11
E'O:iTI I'IMES Af~E
= ~25:37 . 4::::
lQ30.91)
(:'):3 FfJLLOl:.JS::
TcUHI'J. I =
27.63
\cA
.":,
,.
COi"II"UTED CONFLUE:'jCE
PEAK FLOW RATEiCFS)
TOTAL ilREA U.lCRDo>) =
**:~****************************************************************;~********
FLClllJ :Ph'nf',F~;S J="/;'.nr--I l"Jnr:rl= q'::;"1 _ nn Tn l'JnT:ri=" q':-)j fI.... T<:':; ,"'nr'll=" = 7 78
I
I
~
I
:1
I
~
I
-oj
I
:.,
I
I
,
I
,
I
"
I
I
I
I
I
I
I
'~.,;'LI~E~~ EPEI:.IF.iLi! ~-I\~J~CIL8~y 1;~f"ljRI-=~II0j-1 ~; ~~C!0~~;
=====:=============================================~=========================
iJ2EF-S?ECi~IE[~ i!~L.l'ES ARE AS FCLLOI~S~
TC(MIN) = 20.00 RAIN INTErJSITY(INCH/HOUR) = ~.J~
rOl"AL AREA(ACRES) = 106.00 fO'TAL RUNOFF (('FS) = 180.00
*:~*~:********:~**********:~*:t********~***********:!~********;t***********:~****:~::~**
FLOW I~ROC'ESS FROM NODE
921.00 TO j\IOI::E
J
921.00 IS CODE =
_ _ >>>[:'ESI'~,r!ATE IrH:EPErH:E;'Jr STF:U\;"/ Fon Cm~FLUEfjCE<.
----------------------------------------------------------------------------
-----.-----------------------------------------------------------------------
-rOTAL rJUr-IPER OF' STREA~!S =: ~
C:IJtJFLUEi'JC:E \;'(,,!....UE~:.~ U'::,ED FOF( I j'.~DEPE[\I[)EI'.JT ~3TPEAt'j 1 ?;HE:
'fIt-IE: C~I::- C"U:';CE:i..~THPj.rICjr'.l (l~jII'"I.) -" :::O.OU
RAII'JFALL II.~.rEtJSI-l-Y(II.JCH/HR) = "~.~~
f:J TPiL ::.:;Tf~:E{~i'"1 i~f\:Ef:.::r ((iC i"-;;E:":.) =: :J. 06. (I I,)
i='EAK FLOW RATE(CFS) AT CONFLUEI~CE =
l;~;Oft 00
~:~>.
~:*t:~*~~*t**~:~~~::,:~"~:.~~:~~~:~::~*:l::~t**~:***~:*~::~:~*~~:*:~;::*~::::t*~::!:**:~**:~*~::~:~*~::~:~*a:*:~***:'::I:
FLOW PROCESS FROM NODE
':1:21.00 TO I'JOVE
921.00 IS CODE =:
-,
,
))),>>USER SPECIFIED HYI)ROLOGY II~FOI~MATION AT NODE<<<<(
----------------------------------------------------------------------------
--------------------------------------------.--------------------------------
U~iEF:~-:~:;eEC I FI ED \...'~LUES A}t:E AS F(JLLOt"J~::i:
TI~:(tn:j) = 17.C'd) F:,'\II'.I HHE,'EolrYUNCH/Huum = 2.56
To'rAL 'AREA(AC:RES) = 25.00 TOTAL RUNOFF (CFS) ~
62.00
~:*~:~*:~:~*1:*i:~*****:~1:***~:*~:1:******~:*******~******~*~:******~:****~:*i:****:~*****i:*
FLOW PROCESS FROM NODE
'}21.00 TO NO[:'E
921.00 IS CODE =
1
. ~}>OESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(((((
>>>>)AND COMPU1"E VARIOUS CONFLUEtJCED STREAM VALUES<< ~
----------------------------------------------------------------------------
----------------------------------------------------------------------------
TOTAL NUMBER OF STREAMS = ~
(:ONFLUENCE VALUES USED FOR II~DEPENDENT STREAM ~ ARE:
"rI~:E OF CONCENTRAT'IOrJ(MIN.) = 17.50
!~AINFALL INTENSITY<INCH/HR) = 2.56
TOTAL ~:iTr~Ef{!"1 AREA U::;Cf~:ES) =: [::). uO
PEAK FLOW RA"fE(CFS) A"r COJ~FLUEI'JCE = 62.00
** ('ONFLUE~JCE DA1'A ~:~
STREAM R~~OFF
J'JUI'"lBEF< (CFS)
1::;:0.00
<: 62.0(1
I ;'HEI','3 I TY
( I rKH/HOUR)
:2. 37'"'
,'\F:Ef:\
1,:;CRE)
1 Of":,. 00
:~~5. 00
1#:
Tc
(~Im.)
20.00
17. ~;o
2.559
*:k*~::~**:~****************:~********WARNING**********************************
IN THIS CC~PUTER PROGRAM, THE CONFLUENCE VALUE USED IS BASED
ON THE RCFC&WC~ FORMULA OF PLATE 0-1 AS DEFAULT VALUE. THIS FORMULA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
:~******:~*~*********:~******************************************************
RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO
CON:'-;LUEt~CE FOliMULA UGED FOR 2 GTF:EAMS.
"'''' PEAK
fOTREAM
NU~IBEF\
1
~cP' __
FLOt'J RATE
RUNOFF
(CFS)
21':.1.50
237.61
TABLE 'i'-"
Tl=
(MI~J. )
17.50
20.00
INTENS ITY
( INCH/HOUR)
2.559
-;,
L
2.37'='
COl1PUTED CONFLUENCE ESTII'lATES ARE ,;S FOLLOWS:
1~
I
~::::j
I
I
I
I
I
~*~:~**:t********:~**~***~***************************************:~:~************
I
I
I
I
I
I
I
I
I
I
I
I
I
fl~-:~!_ ~~EA(ACRE8) -
1.~~1. UCi
~~:***:tQ:~*~:~*~**:~*~:***:!::~*:~****~:*:!:*~:~:******~:**:~~~::~***.!:**:~~::}
**:~.~**;~;!:~:*:~~':'::~:!:*:\:.\::~
FLOW PROCESS FRO~1 r~ODE
':1:21. UI~1 TfJ ;'.~Or.:E
921.0U IS CODE =
1 j
>)))CGNFLUENCE ~IE~!ORY BAt~K I 3 WI1"H THE ~IAlrJ-S'fREAM HEMORY\<<~<
.----------------------------------------------------------------------------
--------------------------------------.--------------------------------------
:!. :~. l'-"!A I I'J
:3TF:EA1"i
~,JUnBEF~
1
:~~TF;;EAt:'1 CONFLUENCE [:rATA :~:';:
I~UNOFF Tc Il~TEi~SITY
(C"F:;) ((l1tJ. j (li)CH./HOUF~j
237.61 20.00 2.3"78
Al:;:EA
(AC:F:E~ )
131.00
:t;t: j'"IEI!C~F;Y
':~;Tr",Ei~j"'l
l'~I_'r"lE[r(
BAr\lt< -!t
FUt~OF'F
(CF::::;)
2')4.1.30
~ CO~JFLUENCE DA1"A ~:~
1. iHEI'.j':; ITY
( I r~CH/HUUF:)
Aj:(EA
(?iC:RE)
1277.70
Ie
U1HJ. )
:::0.71
1. '='7:=:
1
1:~::~~*~::~~*~*~**~~:*~:***i:**~:~*******wARrJING*****$:~*~:*:~~:~:****:~*~:~:***:~****~:****
\
Ij~ 'r~iIS COMPUTER PROGRAM~ THE CONFLUENCE VALUE USED IS BASED
Otj :THE RCFC:,,(.KI:' FORI'/LlLA C'F PLATE f)-I AS I:EFAUL T VALUE. THE' FOR/"IULA
WILL NOT NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
~.~*~:**~:~:~:t;*~**i::~~:**~:***~:******~*:!:*************~:1:*******~:**1:~**************
:~: 8 PEAK
~:.:i"rF(EA;-"j
i',UI'1E<Ef(
i
FLm.! /=:ATE
r::UtjOFF
I J'~TEN~::i I TV
I H,CH/HOUF\l
2.:37:::;:
1. 87:~:
TABLE .*
Te
.;J'HN.)
20.(10
30.11
~
(CF:3)
21~52."97
312':.1.02
CO~IPUTED CONFLUENCE
r:'EAJ< FLC!\r: l':::t~TE r:CFS)
-('OTAL AREA(ACRES) =
EST li'IAT[':S ,'iF'::::'
:::: :312';1.0:2
140:::.7U
{~S FOLLOllJ~S::
To;: (I'HN. I =
:JO.71
FL(it:J F'RCCES~; FF~Of"1 NODE
'=,121.00 -ro NOVE
922.00 IS CODE =
~~i 1
~":")j>COMPUT"E -l"RAPEZOIDAL CHANNEL FLOW<<<<<
. . )))TRAVELTIME THRU SUBAREA<<<<<
----------------------------------------------------------------------------~
-----------------------------------------------------------------------------
UP3TREAt1 NC)[:fE ELE\/ATIC)tJ = 1028. ::::0
DOWNSTREAM NODE ELEVATION = 1026.00
CHMONEL LENGTH THRU SUBA/=:EA IFEET) =
C'~!ArJNEL SLOPE = .0035
CHAW,EL BA~iE(FEETI = 33.00 "l" FACTOR = 1.~,OO
MANNING'S FACTOR = .015 MAXIMUM DEPTHIFEET) = 7.00
CHANNEL FLO~J THRU :3UBAREAICF:3) = 3129.02
FLOW VELOCITYIFEET/SECI = 14.93 FLOW I:EPTHIFEETl =
FRAVEL TIMEIMIN.1 = .89 TC(MIN.) = 31.61
:;::00.00
~.
::;. 1 ~5
1:**~*,~:~********i:****t~**~:****~**t******************t~:*******:~*i:**~**~*~*****
FLOW PROCESS FROM NODE
922.00 TO NODE
922.00 IS CODE ::::
)))))ADDITIC~ OF SUBAREA TO MAINLINE PEAK FLOW<<<<<
----------------------------------------------------------------------------
-~---------------------------------------------------------------------------
100 YEAR RAINFALL INTENSITYIINCH/HOUR) =
fOIL CLASSIFICAT"ION IS I'C"
COI1f't/ERCIAL DEVELDF'f'tlENT RUJ'WFF
SUBAREA AREAIACRESI = 1.(10
TOTAL ;IREA (ACRESI = 1409.70
rCIMIN) = 31.61
1 . :349
toe:>
COEFFICIENT = .8780
SUBAREA RUNOFFICFSI = 1.62
TOTAL RUNOFFICFSI = 3130.64
80
I
I
I
I
I
I
I
I
)
~
,
-
I
I
I
I
I
I
I
I
C.'..',-,.
" ~', ,.- .:. .
.:' ;~; .!" .!' ;1' :!: .~. ;', .~,
'.. ". \~ - \, .'
.1:.~.~:~.~:~.I..:':~.~:~.t:I::t.:_~.~.~.~.t~~.~.~~.::.t.:'.~;~;~:l'.!'::'-:'.:'.\
FLOW .~R~CE~S FRO~I ~;OD[
'92.2.. U (I TO i'~ur:~:.:.
~~2.lI0 l~ CO['E =
~>>DESI~NA1-E INDEPE;'JDEI~l' STRE~M FOF~ (ONFLliEN(E~~~~
~====:=======================================================================
TOTAL NUMBER OF STREAMS = 2
CCiI'~:=LUENCE VALUE:3 USEO FOR II'JDEFHJOErn :3T;:;:EA!'1 1 Af<E:
TINE OF CONCENTRATIONIMIN.1 = 31.61
RAINFALL INTENSITYIINCH/HR) = 1.85
DJTAL STREAM AREAIACRESI = 1409.70
PEA1< FLOW RATEiCF:::'1 AT CONFLUErKE = 31::::0.64
~i:**~;,*~:~;*~:****.~t~.~;***~;i;1:*****~:~*~*******~:~~:**~:i:~::~:!;~~:**:!::~~::!:~:~;*****~:,~~:*:~:~*:~**~:
FLOW PROC:ESS FROM NODE.
'~22.. I) 0 TO r,~crDE
922..00 IS CODE =
7
------------------------------------.-----------------"---------"-------------"-------
" _ -:->>USER :3F'ECIFIED HYDF::()LCiCry" '(i"JFDRt-U:1TIOl'J ?iT l"~Or.fE<<<<<
==~==================~=======================================,===============
uSER'.SPECIFIED VALUES ARE AS FOLLOWS~
rc (f-Uf-~) ;;:: ::0. 00 f';;Pdf~ II'4TEJ'~S:,I"r\1 (Ir~CH/HUUI:;') = 2. :3:::
j-OTAL AREA(ACRES);;:: 13.00 fo'rAL RUNOFF(CFS) ;;::
:2f-.... 00
~-
ry-
~1:1:i:~:"~~:~:~:$*:!:~:*1:~:t*:~~:"~:~:1;~:*~:*$*1:;~~::~~:~.l:*~:**~::~~:**:~*:~****1:**$*~*:I::~;I:*~:~:~***:~~***:~*
FLOW PROCESS FROM NODE
922..00 TO i-~C)[)E:
922.00 IS CODE ;;::
1
----------------.-------------------------------------------.----.-----------"-.
"'""l"))"DESIG!~A"fE IrJDEPENDENT S"fREAM FOR COrJFLUENCE<,~."
_ " >:;: :':PII'.iD CC:f":PU"TE ;.l~;RICU-:; COrJFLUE~~CE[) tiTF~E~jr-1 \./ALUE:3<<<<<
[::_".
----------------------------------------------------------------------------
----------------------------------------------------------------------------
-f"OT"AL NU~!BEF~ OF Sl"REA~IS = _
CCINFLUE~~CE \/ALUE~=; USED FOR I i'JDEPENDENT ~3TI~EAI\1 2 ARE:
TIME OF CONCENTRATION(MIN.l = 20.00
I':AII'WALL II'HE/'JSITY I IrJCH/HRI = 2. :::"0'
rOTAL S"'fREAt"j AREA(ACRES) = 13.00
PEAl::: FLO~l~ F:ATE (CF:::n PIT CONFLUENCE = 26.00
*:~ CO~JFLUE~JCE DATA *~.
S"fREAM RUNOFF
t'JUt"IBEF;: (CF::::i)
1_-
'-
(!"'J I r~. )
:31.61
2U.00
IrnEW',ITY
l; II'JC:HlHOUf;:)
1. ',,:49
AHEA
IACF(E)
140':.t.70
13.0U
j
313U.64
26..00
2.::::7:3
*:~************************~******WARNING**************:k************~******
:[~J THIS COtlPUTER PROGRA~I~ r~~E CONFLUErJCE VALUE USED IS BASED
O!'J THE RCFCM'JCO FOF':MULA OF PLATE [)-1 .,3 DEFAULT \',~LUE. THI'o. FOF,MULA
WILL NOT NECESSARILY RESULT IN THE NAXI~JM 0ALUE OF PEAK FLOW.
*:~**"l:**:~***~**********~:********~******************************************
,>.
ft.
flA I :'Jh~LL I :JTE/'6I TV AIJD T I i'IE OF CONCENTF(AT I C'N RA r I 0
COl'JF"LU~::1'4::'::E FORMULPt U~;ED FOF< A. ;.::\TF:EAJ'1~:i.
".1: :~: f' E A ~::..
STF{EA~l
r~LWIDEF(
1
FLOvJ F(,; TE
j":UNOFF
iCFSI
2007.04
;) 1 :50. :'=:6
T,4E<LE" '"
Tc
(~lIrj. I
20.00
31.61
I iHEJ"J'o' I TY
( Ii'-JCHlHOUR)
:2. :37:3
1. :::'49
L
CCi~1F'UTE[:' CmJFLUEI'JCE
PEAK FLOW RATEICFSI
TOTAL AREAIACRESI =
ESTH1ATE'3 ARE
;;:: 31~50.:=:6
1422.70
A'3 FOLLOVJ:3:
Tc U1IrJ. I =
:31. 6:L
\01
***********************************************~****************************
FLOW PROCESS FROM NOOE
923.0U IS COOE = 51
81
922.00 TO rJOVE
-------,---------------------------------------------------------------------
~
.,
I
I
I
,
I
I
I
:~~J
I
-.1
~
,I
I
I
I
,
I
I
I
I
I
I
-"--:->T~:{1';.:::.~~.; '_,",t~ ,- ".:u ~'UE;.:~F~EA<-::':'
----------------------------------------------------------------------------
----------------------------------------------------------------------------
UF'S'-REAH NODE ELEVATIOrJ = 1026.00
rCjl.Hj.~iTr_~EAI'""I rll.JtE ELEI/HT' I ur~:::: 1 U23. 60
CHANNEL LENGTH THRU SUBAREAIFEETI = 680.00
CHAN~IEL SLOPE:::: .tIO~5
CH,';NrJEL BA'3E(FEETj.- 33.00 "Z" FAC:TOF<::;:; 1.500
MArJNING'S FACTOR:::: .O.l5 i1AXl~U:~1 DEPT"H(FEET):::: 7.(10
CHANNEL. FLOW '-HRU SUBAREA(CFS):::: 3150.86
FLOW VELOCIfVIFEET/SECI = 15.01 FLOW DEPfH(FEEll = 5.15
TRAVEL TIl'1E(MlrJ.):;:; .76 1"CeJ111-J.) = 32.36
~:~:~:~:1~~t*~:*~****~1;**~:~:*1:~:***i:~:i:~:~:*1:*'~****1:~:~:~::~~:~:*~:*"~*1:**~:~::~**1:~::~**~:*~:~:*~:*:~:*"~::~
FLOW PROC:ESS FROM r~ODE
',j:23.00 TO iWC'E
323.00 IS COL'E =
'-'
~"~"}>jADDITION OF SUBAREA TO MAII~LINE PEAK FLOW<<<<(
-----,-----------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEA!=l: j~~tIN!:.;"f~L.L I1.rrEI'J~3ITy (IJ'4C:H/HOUH) =
SOIL CLASSIFICA1"ION IS FIe"
C!JMMERCIAL DEVELOPMENT RUNOFF
SL!8AREA AF~EA(ACRES) = 1.00
rOT{';L A!~EA(ACRES;) - 142:).70
1.C(~llrJ) ~ 32.36
1. :=:2~i
;..;::
:'::
COEFFICIENT = . :377:;::
SUBAREA RUNOFF(CFS) = 1.60
TOTAL RUNOFF(CFS) = 3152.46
~********:~:t*******~~~:*:~****~::~~::~**********************************************
FLOW PROCESS FROM NODE
'':}2:J.00 TO NO[:'E
923.00 IS CODE =
i
)"~>DESIGNA1"E IrJDEPEI~L'ErJT STREA~I FOR COrJFLUENCE<<~~~(
----------------------------------------------------------------------------
----------------------------------------------------------------------------
rOl"AL tlU~IB[R OF S"T"REAMS = 2
CONFLUEI'.jCE VALUE,:,,' U'::.ED FOP, II'WEF'ENDEI'{j" ',iTREAI"I 1 Ap,E,
l"iME OF l"ONCE~JTRA-T"iON(MI~J.) = 32.36
RAINFALL INTENSITVII~:H/HR) = 1.83
rO-I-AL STREA~I AREA(ACRE5j = 1423.70
PEAK FLOW RATE(CFS) AT CONF"LUENCE = 3152.46
*i::~*******:~*~**1:***.~**:~****~~:******i:*~:***:I:.~*:!::~**:~1::~:~"~i;~;~***:~***"!:i:**:~~:**:~:~***
i:'~LOl;J PRC)CE~;'::i Fl=(Or:1 NODE
923. 00 TO Nor:oE
923.00 IS COI)E =
7
. . >>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<<
-----------------------------------------------------------------------------
-------------------------------------------------------------------------.---
USER.-SPECIFIED VALUES ARE AS FOLLOWS:
TCIMINl = 20.00 RAIN INTENSITVIINCH/HOURl = ,.~v
TOTAL P,F(Ei~ IACRESI = 40.00 TOTAL RUNOFF ICF'3) =
~~
'92.00
*.~~~;:~~:~~:~:~:*********~:****~***************************1:****~**************:~***
FLOW PROCESS FROM NODE
923.00 IS CODE =
'323.00 TO NODE
1
~)>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<<
>>>>>A~W CCWIPUTE '!?\F(IOU~i CONFLUEilCED STF(EAI1 W\UJES<<,'
-----------------------------------------------------------------------------
----------------------------------------------------------------------------
fO"TAL rJl!M8EF~ OF STREAMS = _
CONFLUENCE VALUE:3 U'3E[) FOR INDEPENDEin ,3TREAM 2 AF:E:
TIME OF CONCENTRATI~~IMIN.1 = 20.00
RAINFALL INTENSITYIINCH/HRI = 2.38
TOTAL STREAM AREAIACRESI = 40.00
F'EA1< FLO\v RATE (CFSI AT C;CiI'JFLUENCE = 92.00
lOCO
.* CONFLUENCE DATA ..
~3TREAJ1 RUtJCIFF Tc
~.r11/71~H!I=J:;' f1~"i=":C: ~ i J'!ol T "I ,
I IHENS I TY
( T 1\11-"1.-1 ILJnIIC;"
AREA
az
{A,-.r;,C\
I
I
I
I
I
I
I
,
,
,
I
,
I
I
I
I
I
I
I
I
:7 ~.. ~ :j. I
..:j.IJ. uU
.;.. ~ "_' .. ,n,
~:~:~.~:::*:~;~:~::::~:~*;~;~::::~,t:t:~:~~.~**:~~:~:~:~**:~blARNlrJG:~;r*:~**;~:r*:~*:~:~:!M~:~:t*:r:~:~.~:~*'~:~:~'::!'i";"i'
r i"J TH I :::' C C!rlF'UTE.F~ r~'F~C::.in(~i"j ~ THE C C!:'.iFLUENC E \/{iLUE U~:::;EI.I I:;3 D;:':\:::E:D
ON TI.iE RCFCtWCD FORMULA OF PLATE [).-! AS DEFAULT VALUE. "THIS FO:~MULA
!:J I LL NU r ~./ECE~'::;,'.AF: I L Y F~E:0'UL-r I ~~ THE i"!AX I t-!t~~'l Ijf':ILUE UF PE{~;l< FLIJl:J.
**~****~*********:~**************************~:*******~:****:~***:~*********:~*~:
Ri~HWALL HHEiJ:3ITY Am, fmE IJF CorJC Er.iTF:f-\Tl ur.1 F,ATIO
CONFLUENCE FORi1ULA USED FOR 2 S'fREAr1S.
:~::7: PEAl:::
:-3TF:EAM
i"l'-!I~iBEF
1
FLOW RATE TABLE .*
I i'JTENS I TY
I U1CH/HCURl
fc
(r-II~L )
.20~ 00
Rur~OFF
(C-F:~\)
2040. ::iO
~i22:=,.. 0:::; .
2.. :37;;;:
-- -,-
.--'~~. :.:,! I~:.,
1.. ::::2~i
COJ1PUTED CONFLLIENC:E ESTI1'1ATES ARE AS FOLLOWS:
PEf""il< FLC~)J F<ATE(CF:t3).- :3223.0;~:: rc(f'''IIN~);;;; 32..36
fOTAL AREACAC:RES) = 1463..70
~::::::
E:::::
~~,r**~~*~**~:****:~***~:****~:********:~*************:~*****************:~*******~:*
FLGl:J F'1=<OCES::::; FFcr"l NODE
924..00 IS C'ODE;;;; 51
923.00 TU r'~UI::E
. . >CCf':F'UTE TF<{,eEZiJI[::{',L C:Ht-)r~i'~EL FLOllJ<<<<-:~
':.)>)).'-RAVELTIME T~iRU SUBAREA<<<<<
----------------------------------------------------------------------------
-------_._--------------------------------,-----------------------------------
IJPSTREAM NODE ELEVATION;;;; 1023..60
0JW~STREAM NODE ELEVf-\TION = 1021.20
f:HANNEL LENG'fH l-HRU SUBAREA (FEET) = 690..00
CHAf',.!~-JEL €,-LOF'E:;;; .003::i
CH:4N~jEL E1A,=;E (F..-EET) =: :::' J ~ (I (I 11 Z 11 FACTOR:::: 1.. 50 (I
MANf~lNI~'S FACTOR = ..015 MAXIMLIM DEP1'H(FEET) = 7.00
1:~fANNEL FLOW -rHRU SUBAREA (CFS) =: 3223..08
FLOW VELOCITYIFEET/SECI = 15.04 FLC~ DEPfHIFEETI - 5.24
TPi';VEL TItlE It-1IN.) = .76 TC (!'lIt,. I = ::3.13
i:***1:$*~:tt***i:**i:i:t*****~**ti:****~:***********~*t~:**~:~:*i:~**1:******~:*i:1:*~t****
FLOW PROCESS FROM NODE
924.00 TO rwr:'E
924.00 IS CODE =
.::.
>AN:>ITIOI', OF '3'-'BAREA TO ~tyH,LII',E F'EAK FLOl.J<<<<<
-----------------------------------------------------------------------------
----------------------------------------------------------------------------
100 YEAR RAINFALL INTENSITYCINCH/HOUR) =
~301L CLA::;SIFICATI01'.J I::i llCfI
COMME~:IAL DEVELOPMENT RL~OFF
SUBAREf-\ RREAIACRES) = 1.00
rOTAL ~REA(ACRESI = 1464.70
'I-C(~llN) = 33..13
1. :302
COEFFICIENT = .8775
S;lJBi;REA RUrJOFF I CF~, I = 1.5:;::
TOTAL RUNC~F(CFSI = 3224.66
:~******~******************************************************:~~****~*:~:~****
F"LDtIJ Pf\CII:::E:::;~3 FF~:Or-1 f,JO[:;E
924.00 TO l'mVE
924.00 IS CODE =
1
>>>>>CESIGNf-\TE INDEPENDENT STREAM FOR CONFLUENCE<<<<<
.----------------------------------------------------------------------------
----------------------------------------------------------------------------
DJTAL NUMBER OF STREAMS = ~
CONFLUENCE VALUE::> U'3ED FOR I1'mEPENDENT S;"TREAM 1 ARE:
TIME OF CONCENTRATIONCMIN.) = 33.13
l'(AItWALL INTEN~::rTY(]NCH/HRI = 1.:30
TOTAL STREAt-1 ~mEA IACRES)" = 1464.70
PEAJ< FLOW RATE (C:F:3) AT CONFLUENCE = 3224.66
\O~
83
I
I
I
I
I
I
I
I
I
I
I
I
I
II
I
I
I
I
I
I
FLO~ ~ROCE3S FRO~ r~~GE
"324.00 13 CG0E =
---- ------ -------------------
~;.USER SPECIFfE[) HYIJROLOG'( IrJFORMA-rION AT r~O[}E<;.
===============================================================~============
USER.-SPECIFIED VALUES ARE AS FOLLOWS:
l-CtMINl = ~J.lIO RAlrJ IN1'ErJSIT"Y(IrJC"H/HOUR) = 2.20
TOTAL AREAIACRESI = 20.00 nJTAL RUNOFFICFS) =
40.00
~:~;*:~~t~~;1:***~t*~:~t~:~~:*:J:~;;N:~**1:****~:'N**'~***~*~:**~~~:'~~:**'~~i:****:~*'!:~**:!:~::~*:~~::~i:;~*
Fl_OW PROCESS FROM NODE
':;'24.00 TO i'~':IDE
924.00 IS CODE =
1
--------------.--------..-.-------.----------.----------.------.----.---------------.-
.>).).:~>[)ESIGtJ~l-E INDEPENDEI~T S"l-REAM FOR CONFLUE!~CE<<(' .
". ': "":- ">;:"-'d""~V C CTiF'UT:::: \.I{~~r-( I CUf'::i C Oi'Jf7LUEr--K"E~I:' :~,TF:Ef,iiMI \.II~"LUE:3< <" ":,".... .'
_0_--------------------------------------------------------------------------
----------------------------------------------------------------------------
TOTAL tJUr"12ER OF S"fREAtIS = ~"
CO!'~FLUENCE V:~LUE:=; U3ED FOR I I.~DEPEI'~DENT :3TREAj"1 :2 Ai;:E:
TInE IJF C-CtKENTF:ATICtJnilI:;~.) :;:: 2.3.00
RAIN~ALL INTENSITY(INCH/HRI = 2.20
fOTAl STREAt'l AREA(ACF~ES):;:: 20.00
PEAK FLOW RATE(CFS) AT CONFLUENCE = 40.00
"~:,~, CC'~:FLUEtJC-E DI~~Mr"A ""~: .~:
STF:EAtl
:'JU!~JEIEh
F:urJOFF
(CF":Zi)
3224" "':,6
40~OO
Tr:::
U'lIN. I
33.13
2:3.00 .
WTEtj:3ITY
( INCH/HOUF:)
1. ':::02
~"2. 2U2
l~nEA
(?,;CF:E)
1464.70
~~o.oo
1
~
~:**~:~:**~::~***:~**~:~:*********~,***:~**WA!~NING***********~*******************~*:~
itJ 'THIS COMPUTER PROGRArl~ T~~E CONFLUENCE VALUE USED IS BASED
ON THE F\:CFC:::.:l1JCD FORrJULA OF PLATE 0",,1 A~3 DEFAULT V?iLUE. TH 1:3 FOFJ'jULA
WILL Nor NECESSARILY RESULT IN THE MAXIMUM VALUE OF PEAK FLOW.
,::~*:t:~*~*:~$****~:*****{:~:*~***************~:*********~:****:~************:~******
F~I:':IIJ'JF"riLL ll'.jrE\"~~\ITY Hr~v Tlr"IE OF CCr-1CErJfPHfIOI'J H?:tTIO
CO]'~FL.UErJCE FC)f-~:I','lULA U'3ED r'C!!:;: .2 ~3TREAI'''lS.
"~: .:: F'EI-:i~::"
FLC~iJ F;;A TE
r=i:UNOF"F
(CF"~::i J
r ~;II')LE :~: :1:
Te
11"IHl.1
23.00
33.1:)
I I'HEt,'3 I TY
I li'lCHiHOURI
2.202
:[. :~:(I2
STREPli"t
NUrrIFEF:
I.
227::;:.';,:t::i
32~j 7 .. ::::~'::~
CO~lPUTED C'JNFLUEI'KE e'3TH1ATES AF:E A'::. FCiLLm.iS:
PEAK F:LOW RATE(CFS) = 3257.39 Tc(MI~J.):;:: 33.13
T'OTAL AREA (ACRES) = 1484.70
----------------------------------------------------------------------------
----------------------------------------------------------------------------
END OF STUDY SUMMARY:
PEAK FLOW RATECCFSI = 3257.39
TOTAL AREA(ACRESI - 1484.70
Te (tHI'j.) =
33.13
----------------------------------------------------------------------------
----------------------------------------------------------------------------
EtJD OF RATIOrJAL ~IE-r~!OD ANALYSIS
\\0
84