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Home My WebLink AboutHydrology(Feb.26,1999) ~ J ~ . j, CITY OF TEMECULA COUNTY OF RIVERSIDE RECEIVED FEB 26 1999 CITY OF TEMECULA ENGINEERING DEPARTMENT HYDROLOGlC/HYDRAULIC ANALYSIS FOR TRACT 29033 REC JOB NO. 13193T February 26, 1999 ~~~ EDW, M. RATICAN R.C.E. 46804 Expires 6-30-99 Prepared for: TEMEKU HILLS DEVELOPER PARTNER L.P. A CALIFORNIA LIMITED PARTNERSHIP 2727 Hoover Avenue National City, CA 91950 Prepared by: RICK ENGINEERING COMPANY 3050 Chicago Avenue, Suite 100 Riverside, CA 92507 (909) 782-0707 \ - ; r ji TABLE OF CONTENTS PURPOSE ................................................................... 1 PROJECT DESCRIPTION ...................................................... 1 HYDROLOGy.............................................................. .1 HYDRAULICS ............................................................... 1 CONCLUSION ............................................................... 1 LIST OF APPENDICES A. HYDROLOGY STUDY (10-YEAR STORM EVENT) . . . . . . . . . . . . . . . . . . . . . . . . . .2 B. HYDROLOGY STUDY (lOO-YEAR STORM EVENT) ....................... .14 C. HYDRAULIC ANALYSIS (SURF ACE STREETS AND CATCH BASINS) ....... 26 D. HYDRAULIC ANALYSIS (WSPGN - INPUT, EDIT AND OUTPUT FILES) 1. LINE A-I ...................................................... 29 2. LINE A-2 ...................................................... 35 3. LINE B ........................................................ 41 RATIONAL METIlOD HYDROLOGIC ANALYSIS SUB-BASIN MAP ..... Pocket 1- ; , l PURPOSE This report represents the hydrology and hydraulic analysis of the 100-year, 24-hour storm event for the Temeku Hills Development, Tract 29033-1 in the City of Temecula, County of Riverside, California This report was prepared following the guidelines and regulations within the Riverside County Flood Control and Water Conservation District's Hydrology Manual (1978). PROJECT DESCRIPTION Tract No. 29033 is part of the Temecula Hills Development located in the City of Temecula. The Tracts contain 70 single family lots on Sunningdale Drive and a 2.6 acre slope down to Congressional Drive. Thirty-seven lot front on Sunningdale Drive to the north and Golf Course to the south and east. Thirty-three lots front Sunningdale Drive to the south and the slope to Congressional Drive on the north. - . LOts east of the high point in Congressional Drive drain into the storm drain systems for tract 23371- 11. The sump catch basin at the end of Meadowbrook Way connects to line "E" in Tract 23371-11. Lots west of the high point in Sunningdale Drive drain into two flowby catch basins that are joined to line "A" in Temeku Drive. Additional run off flows into Temeku Drive. The slope in Tract 29033 was graded with Tract 23371- 11 hydrology and hydraulic information for the slope are a part of the 23371-11 hydraulic and hydrology analysis. HYDROLOGY The Riverside County Flood Control and Water Conservation District (RCFC) Rational Method (Advanced Engineering Software, Version 1.5A, copyright 1982-1996) is used to determine the onsite runoff for the 100-year, 24-hour storm event. HYDRAULICS Water surface profiles in the proposed storm drain pipes are calculated using WSPGN, Riverside County Flood Control District Program No. FO 515P, Water Surface Pressure Gradient Hydraulic Analysis Computer Program, Version 7. Calculations are labeled Appendix C. CONCLUSION These supporting hydrology and hydraulic calculations are provided to substantiate the design of the proposed storm drain facilities. Onsite hydrology map is included. F:\l3193\13193V\002.WPD ~ i , t APPENDIX A HYDROLOGY STUDY (to-YEAR STORM EVENT) . ........, A. i , ~ *******~******************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON RIVERSIDE COUNTY FLOOD CONTROL & WATER CONSERVATION DISTRICT (RCFC&WCD) 1978 HYDROLOGY MANUAL (c) Copyright 1982-96 Advanced Engineering Software (aes) Ver. 1.5A Release Date: 01/01/96 License ID 1261 Analysis prepared by: RICK ENGINEERING COMPANY WATER RESOURCES DIVISION 5620 FRIARS ROAD, SAN DIEGO, CA 92110 (619) 291-0707 ************************** DESCRIPTION OF STUDY ************************** * IN 13193T TRACT 29033 TEMEKU HILLS * * DEVELOPED CONDITION, 10 YEAR, 1 HOUR * * MODELED BY EDL * ************************************************************************** FILE NAME: 193T.DAT TIME/DATE OF STUDY: 16: 0 2/22/1999 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: USER SPECIFIED STORM EVENT(YEAR) = 10.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE 10-YEAR STORM 10-MINUTE INTENSITY (INCH/HOUR) = 10-YEAR STORM 60-MINUTE INTENSITY (INCH/HbUR) = 100-YEAR STORM 10-MINUTE INTENSITY (INCH/HOUR) 100-YEAR STORM 60-MINUTE INTENSITY (INCH/HOUR) SLOPE OF 10-YEAR INTENSITY-DURATION CURVE = SLOPE OF 100-YEAR INTENSITY-DURATION CURVE = COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 10.00 I-HOUR INTENSITY (INCH/HOUR) = .8888 SLOPE OF INTENSITY DURATION CURVE = .5506 RCFC&WCD HYDROLOGY MANUAL "C"-VALUES USED NOTE: COMPUTE CONFLUENCE VALUES ACCORDING TO RCFC&WCD HYDROLOGY MANUAL AND IGNORE OTHER CONFLUENCE COMBINATIONS FOR DOWNSTREAM ANALYSES FOR FRICTION 2.360 .880 = 3.480 = 1. 300 .5505732 .5495536 SLOPE = .90 **************************************************************************** :> FLOW PROCESS FROM NODE 10.00 TO NODE 11.00 IS CODE = 21 " , .. ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ==== == = =:= == ==== == = = = == = == = = = = = = = = = ====== = = = = = = = ===== = == ====== = ==== === = ===== = ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE) TC = ~*[(LENGTH**3)/(ELEVATION CHANGE)] **.2 INITIAL SUBAREA FLOW-LENGTH = 193.00 UPSTREAM ELEVATION = 1274.00 DOWNSTREAM ELEVATION = 1268.90 ELEVATTON DIFFERENCE = 5.10 TC = .393*[( 193.00**3)/( 5.10)]**.2 = 6.665 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.980 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY{1/4 ACRE LOT) RUNOFF COEFFICIENT = .8247 SUBAREA RUNOFF (CFS) = 1.20 TOTAL AREA(ACRES) = .49 TOTAL RUNOFF(CFS) = 1.20 **************************************************************************** FLOW PROCESS FROM NODE 11. 00 TO NODE 12.00 IS CODE = 6 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = STREET LENGTH (FEET) = STREET HALFWIDTH(FEET) 1268.90 308.00 = 18.00 DOWNSTREAM ELEVATION = 1260.90 CURB HEIGHT (INCHES) = 6. DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL{DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = 1.89 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .28 HALF STREET FLOODWIDTH(FEET) = 6.75 AVERAGE FLOW VELOCITY{FEET/SEC.) = 3.08 PRODUCT OF DEPTH&VELOCITY = .87 STREETFLOW TRAVELTIME(MIN) = 1.67 TC(MIN) = 8.33 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.636 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8167 SUBAREA AREA (ACRES) = .63 SUBAREA RUNOFF(CFS) = 1. 36 <:, "' SUMMED AREA(ACRES) = 1.12 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .30 HALFSTREET FLOODWIDTH(FEET) = FLOW VELOCITY(FEET/SEC.) = 3.38 DEPTH*VELOCITY = 2.56 7.75 1. 03 *******************,********************************************************* FLOW PROCESS FROM NODE 12.00 TO NODE 13.00 IS CODE = 6 -------------------.--------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ===================:========================================================= UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1260.90 255.01 = 18.00 DOWNSTREAM ELEVATION = 1252.00 CURB HEIGHT(INCHES) = 6. DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSS FALL (DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.23 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .32 HALFSTREET FLOODWIDTH(FEET) = 8.50 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.67 PRODUCT OF DEPTH&VELOCITY = 1.17 STREETFLOW TRAVELTIME(MIN) = 1.16 TC(MIN) = 9.49 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.454 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8117 SUBAREA AREA(ACRES) = .67 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 1.79 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (.FEET) = .32 HALFSTREET FLOODWIDTH(FEET) = FLOW VELOCITY(FEET/SEC.) = 4.43 DEPTH*VELOCITY = 1. 33 3.89 8.50 1.41 ********,******************************************************************** FLOW PROCESS FROM NODE 13.00 TO NODE 13.00 IS CODE = 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ \ TOTAL NUMBER OF STREAMS = 2 ", CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 9.49 RAINFALL INTENSITY (INCH/HR) = 2.45 TOTAL:STREAM AREA(ACRES) = 1.79 PEAK FLOW RATE(CFS) AT CONFLUENCE = 3.89 ** * * * * * * * * * * * ** * * **,* *** * * * * * * **** ** **** * * * * * * * * * *** * * * * ** * * * * *** *** ******* ** FLOW PROCESS FROM NODE 14.00 TO NODE 15.00 IS CODE = 21 -------------------.--------------------------------------------------------- >>>>>RATIONAL 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 = 447.00 UPSTREAM ELEVATION = 1262.10 DOWNS~REAM ELEVATION = 1257.10 ELEVATION DIFFERENCE = 5.00 TC = .393*[( 447.00**3)/( 5.00)]**.2 = 11.075 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.253 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(l/4 ACRE LOT) RUNOFF COEFFICIENT = .8055 SUBAREA RUNOFF(CFS) = 1.80 TOTAL AREA (ACRES) = .99 TOTAL RUNOFF(CFS) = 1.80 ********1******************************************************************** FLOW PROCESS FROM NODE 15.00 TO NODE 13.00 IS CODE = 6 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1257.10 180.00 = 18.00 DOWNSTREAM ELEVATION = 1252.00 CURB HEIGHT (INCHES) = 6. DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = STREET FLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .29 2.23 ~ " HALFSTREET FLOODWIDTH(FEET) = 7.25 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.27 PRODUCT OF DEPTH&VELOCITY = .96 STREETFLOW TRAVELTIME(MIN) = .92 TC(MIN) = 11.99 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.157 SOIL CLASSIFICATION IS "C" SINGLE-Ffu~ILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8022 SUBAREA AREA(ACRES) = .50 SUBAREA RUNOFF(CFS) = SUMMED AREA (ACRES) = 1.49 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .30 HALFSTREET FLOODWIDTH(FEET) = FLOW VELOCITY(FEET/SEC.) = 3.52 DEPTH*VELOCITY = .87 2.66 7.75 1. 07 **************************************************************************** FLOW PROCESS FROM NODE 13.00 TO NODE 13.00 IS CODE = 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>k~D COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 11.99 RAINFALL INTENSITY (INCH/HR) = 2.16 TOTAL STREAM AREA (ACRES) = 1.49 PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.66 ** CONFLUENCE DATA ** STREAM RUNOFF NUMBER (CFS) 1 3.89 2 2.66 Tc (MIN.) 9.49 11.99 INTENSITY ( INCH/HOUR) 2.454 2.157 AREA (ACRE) 1. 79 1. 49 *********************************WARNING********************************** 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 CONFLUENCE FORMULl, USED FOR 2 STREAMS. ** PEAK FLOW RATE TABLE ** STREAM RUNOFF Tc INTENSITY ~ , NUMBER 1 2 (CFS) 6.00 6.09 (MIN.) 9.49 11.99 ( INCH/HOUR) 2.454 2.157 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 6.00 3.28 AS FOLLOWS: Tc (MIN.) = 9.49 **************************************************************************** FLOW PROCESS FROM NODE 20.00 TO NODE 21.00 IS CODE = 21 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE) TC = ~*[(LENGTH**3)/(ELEVATION CHANGE)] **.2 INITIAL SUBAREA FLOW-LENGTH = 279.00 UPSTREAM ELEVATION = 1246.50 DOWNSTREAM ELEVATION = 1239.10 ELEVATION DIFFERENCE = 7.40 TC = .393*[( 279.00**3)/( 7.40)]**.2 = 7.717 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.749 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8195 SUBAREA RUNOFF (CFS) = 1.53 TOTAL AREA(ACRES) = .68 TOTAL RUNOFF(CFS) = 1.53 ********.******************************************************************** FLOW PROCESS FROM NODE 30.00 TO NODE 31.00 IS CODE = 21 >>>>>RATIONAL 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 = 334.00 UPSTREAM ELEVATION = 1262.10 DOWNSTREAM ELEVATION = 1257.86 ELEVATION DIFFERENCE = 4.24 TC = .393*[( 334.00**3)/( 4.24)]**.2 = 9.610 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.436 SOIL CLASSIFICATION IS "C" \ SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8112 \0 , SUBAREA RUNOFF (CFS) = TOTAL AREA (ACRES) = 1. 50 .76 TOTAL RUNOFF(CFS) = 1. 50 **************************************************************************** FLOW PROCESS FROM NODE 31.00 TO NODE 32.00 IS CODE = 6 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = STREET LENGTH (FEET) = STREET HALFWIDTH(FEET) 1257.86 310.00 = 18.00 DOWNSTREAM ELEVATION = 1246.04 CURB HEIGHT(INCHES) = 6. DISTANCE FROM CROWN TO CROSS FALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 2.32 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .28 HALFSTREET FLOODWIDTH(FEET) = 6.75 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.78 PRODUCT OF DEPTH&VELOCITY = 1.07 STREETFLOW TRAVELTIME (MIN) = 1.37 TC(MIN) = 10.98 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.264 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8059 SUBAREA lL~EA(ACRES) = .89 SUBAREA RUNOFF (CFS) = SUMMED AREA(ACRES) = 1.65 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .30 HALFSTREET FLOODWIDTH(FEET) = FLOW VELOCITY(FEET/SEC.) = 4.13 DEPTH*VELOCITY = 1. 62 3.13 7.75 1. 25 **************************************************************************** FLOW PROCESS FROM NODE 33.00 TO NODE 34.00 IS CODE = 21 >>>>>RATIONAL 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 = 334.00 UPSTREAM ELEVATION = 1262.10 DOWNSTREAM ELEVATION = 1258.06 ELEVATION DIFFERENCE = 4.04 TC = .393*[( 334.00**3)/( 4.04)]**.2 = 9.703 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.423 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8108 SUBAREA RUNOFF (CFS) = 1.36 TOTAL :AREA(ACRES) = .69 TOTAL RUNOFF(CFS) = 1.36 **************************************************************************** FLOW PROCESS FROM NODE 34.00 TO NODE 35.00 IS CODE = 6 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = STREET LENGTH (FEET) = STREET HALFWIDTH(FEET) 1258.06 310.00 = 18.00 DOWNSTREAM ELEVATION = 1245.77 CURB HEIGHT(INCHES) = 6. DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIFIED NUMBER OF HALF STREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = 2.16 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .27 HALF STREET FLOODWIDTH(FEET) = 6.25 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.95 PRODUCT OF DEPTH&VELOCITY = 1.08 STREETFLOW TRAVELTIME(MIN) = 1.31 TC(MIN) = 11.01 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.260 SOLL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8057 SUBAREA AREA(ACRES) = .89 SUBAREA RUNOFF (CFS) = SUMMED AREA(ACRES) = 1.58 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (.FEET) = .30 HALFSTREET FLOODWIDTH(FEET) = FLOW VELOCITY(FEET/SEC.) = 3.93 DEPTH*VELOCITY = 1. 62 2.98 7.75 1.19 \"l- , *****~**************,********************************************************* FLOW PROCESS FROM NODE 40.00 TO NODE 41.00 IS CODE = 21 ------------------_._-------------------------------------------------------- >>>>>RATIONAL 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 = 447.00 UPSTREAM ELEVATION = 1262.40 DOWNSTREAM ELEVATION = 1257.40 ELEVATION DIFFERENCE = 5.00 TC = .393*[( 447.00**3)/( 5.00)]**.2 = 11.075 10 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.253 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8055 SUBAREA RUNOFF(CFS) = 2.16 TOTAL :AREA(ACRES) = 1.19 TOTAL RUNOFF(CFS) = 2.16 ********1******************************************************************** FLOW PROCESS FROM NODE 41.00 TO NODE 42.00 IS CODE = 6 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1257.40 180.00 = 18.00 DOWNSTREAM ELEVATION = 1252.20 CURB HEIGHT(INCHES) = 6. DISTANCE FROM CROWN TO CROSS FALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = 2.69 STREET FLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .30 HALFSTREET FLOODWIDTH(FEET) = 7.75 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.55 PRODUCT OF DEPTH&VELOCITY = 1.08 STREETFLOW TRAVELTIME(MIN) = .84 TC(MIN) = 11.92 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.164 SOIL CLASSIFICATION IS "C" \~ SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8024 SUBAREA AREA(ACRES) = .61 SUBAREA RUNOFF(CFS) = SUMMED AREA (ACRES) = 1.80 TOTAL RUNOFF(CFS) = END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) = .32 HALFSTREET FLOODWIDTH(FEET) = FLOW VELOCITY(FEET/SEC.) = 3.66 DEPTH*VELOCITY = 1. 06 3.22 8.50 1.17 **************************************************************************** FLOW PROCESS FROM NODE 42.00 TO NODE 43.00 IS CODE = 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1252.20 305.00 = 18.00 DOWNSTREAM ELEVATION = 1230.50 CURB HEIGHT(INCHES) = 6. DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.56 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .29 HALFSTREET FLOODWIDTH(FEET) = 7.25 AVERAGE FLOW VELOCITY(FEET/SEC.) = 5.22 PRODUCT OF DEPTH&VELOCITY = 1.53 STREETFLOW TRAVELTIME(MIN) = .97 TC(MIN) = 12.89 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.072 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7991 SUBAREA AREA(ACRES) = .41 SUBAREA RUNOFF (CFS) = SUMMED AREA (ACRES) = 2.21 TOTAL RUNOFF(CFS) = END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) = .30 HALFSTREET FLOODWIDTH(FEET) = FLOW VELOCITY(FEET/SEC.) = 5.15 DEPTH*VELOCITY = .68 3.90 7.75 1. 56 **************************************************************************** FLOW PROCESS FROM NODE 60.00 TO NODE 61.00 IS CODE = 21 ---------------------------------------------------------------------------- \A >>>>>RATIONAL 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 = 185.00 UPSTREAM ELEVATION = 1271.10 DOWNSTREAM ELEVATION = 1269.00 ELEVATION DIFFERENCE = 2.10 TC = .393*[( 1&5.00**3)/( 2.10)]**.2 = 7.759 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.741 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8193 SUBAREA RUNOFF(CFS) = 1.06 TOTAL!AREA(ACRES) = .47 TOTAL RUNOFF(CFS) = 1.06 *******************.********************************************************* FLOW PROCESS FROM NODE 61.00 TO NODE 62.00 IS CODE = 6 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1269.00 554.00 = 18.00 DOWNSTREAM ELEVATION = 1252.40 CURB HEIGHT(INCHES) = 6. DISTANCE FROM CROWN TO CROSS FALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIBIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 2.47 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .29 HALF STREET FLOODWIDTH(FEET) = 7.25 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.61 PRODUCT OF DEPTH&VELOCITY = 1.06 STREETFLOW TRAVELTIME(MIN) = 2.55 TC(MIN) = 10.31 10 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.343 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8084 SUBAREA AREA(ACRES) = 1.49 SUBAREA RUNOFF(CFS) = SUMMED AREA (ACRES) = 1.96 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: 2.82 3.88 \-5 1- ; DEPTH (-FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = FLOW VELOCITY(FEET/SEC.) = 3.66 DEPTH*VELOCITY = 9.50 1. 24 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- END OF STUDY SUMMARY: PEAK FLOW RATE (CFS) = TOTAL :AREA(ACRES) = Tc(MIN.) = 3.88 1.96 10.31 END OF RATIONAL METHOD ANALYSIS ============================================================================ \<'e *******************1********************************************************* RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON RIVERSIDE COUNTY FLOOD CONTROL & WATER CONSERVATION DISTRICT (RCFC&WCD) 1978 HYDROLOGY MANUAL (c) Copyright 1982-96 Advanced Engineering Software (aes) Ver. 1.5A Release Date: 01/01/96 License ID 1261 Analysis prepared by: RICK ENGINEERING COMPANY WATER RESOURCES DIVISION 5620 FRIARS ROAD, SAN DIEGO, CA 92110 (619) 291-0707 ************************** DESCRIPTION OF STUDY * IN 13I93T TRACT 29033 TEMEKU HILLS * DEVELOPED CONDITION, 100 YEAR, 1 HOUR * MODELED BY EDL ************************** * * * ************************************************************************** FILE NAME: 193T.DAT TIME/DATE OF STUDY: 16: 2 2/22/1999 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS (DECIMAL) TO USE 10-YEAR STORM 10-MINUTE INTENSITY (INCH/HOUR) = 10-YEAR STORM 60-MINUTE INTENSITY (INCH/HOUR) = 100-YEAR STORM 10-MINUTE INTENSITY (INCH/HOUR) 100-YEAR STORM 60-MINUTE INTENSITY (INCH/HOUR) SLOPE .oF 10-YEAR INTENSITY-DURATION CURVE = SLOPE .oF 100-YEAR INTENSITY-DURATION CURVE = COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 I-HOUR INTENSITY (INCH/HOUR) = 1.3000 SLOPE OF INTENSITY DURATION CURVE = .5496 RCFC&WCD HYDROLOGY MANUAL "C"-VALUES USED NOTE: .COMPUTE CONFLUENCE VALUES ACCORDING TO RCFC&WCD HYDROLOGY MANUAL AND IGNORE OTHER CONFLUENCE COMBINATIONS FOR DOWNSTREAM ANALYSES FOR FRICTION 2.360 .880 = 3.480 = 1. 300 .5505732 .5495536 SLOPE = .90 ********L******************************************************************** \\ FLOW PROCESS FROM NODE 10.00 TO NODE 11.00 IS CODE = 21 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SuBAREA UNIFORM DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE) TC ~ ~*[(LENGTH**3)/(ELEVATION CHANGE)] **.2 INITIAL SUBAREA FLOW-LENGTH ~ 193.00 UPSTREAM ELEVATION ~ 1274.00 DOWNS~REAM ELEVATION ~ 1268.90 ELEVATION DIFFERENCE ~ 5.10 TC ~ .393*[( 193.00**3)/( 5.10)]**.2 ~ 6.665 100 YEAR RAINFALL INTENSITY (INCH/HOUR) ~ 4.349 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY{1/4 ACRE LOT) RUNOFF COEFFICIENT ~ .8455 SUBAREA RUNOFF (CFS) = 1.80 TOTAL AREA{ACRES) ~ .49 TOTAL RUNOFF(CFS) ~ 1.80 **************************************************************************** FLOW PROCESS FROM NODE 11. 00 TO NODE 12.00 IS CODE ~ 6 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION ~ STREET LENGTH (FEET) ~ STREET HALFWIDTH(FEET) 1268.90 308.00 ~ 18.00 DOWNSTREAM ELEVATION ~ 1260.90 CURB HEIGHT (INCHES) ~ 6. DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK ~ 16.00 INTERIOR STREET CROSS FALL (DECIMAL) ~ .020 OUTSIDE STREET CROSSFALL(DECIMAL) ~ .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF ~ 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) ~ 2.83 STREET FLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) ~ .32 HALFSTREET FLOODWIDTH(FEET) ~ 8.50 AVERAGE FLOW VELOCITY(FEET/SEC.) ~ 3.22 PRODUCT OF DEPTH&VELOCITY ~ 1.02 STREET FLOW TRAVELTIME(MIN) ~ 1.59 TC(MIN) ~ 8.26 100 YEAR RAINFALL INTENSITY (INCH/HOUR) ~ 3.866 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT ~ .8396 SUBAREA AREA(ACRES) ~ .63 SUBAREA RUNOFF (CFS) ~ \to 2.04 SUMMED AREA(ACRES) = 1.12 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (.FEET) = .34 HALFSTREET FLOODWIDTH (FEET) = FLOW VELOCITY(FEET/SEC.) = 3.63 DEPTH*VELOCITY = 3.85 9.50 1. 23 **************************************************************************** FLOW PROCESS FROM NODE 12.00 TO NODE 13.00 IS CODE = 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH{FEET) 1260.90 255.01 = 18.00 DOWNSTREAM ELEVATION = 1252.00 CURB HEIGHT(INCHES) = 6. DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = 4.86 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = 9.50 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.59 PRODUCT OF DEPTH&VELOCITY = 1.55 STREETFLOW TRAVELTIME (MIN) = .93 TC(MIN) = 9.19 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.646 SOIL CLASSIFICATION IS "e" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8365 SUBAREA AREA(ACRES) = .67 SUBAREA RUNOFF (CFS) = SUMMED AREA (ACRES) = 1.79 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .36 HALF STREET FLOODWIDTH(FEET) = 10.50 FLOW VELOCITY(FEET/SEC.) = 4.68 DEPTH*VELOCITY = 1.68 2.04 5.89 **************************************************************************** FLOW PROCESS FROM NODE 13.00 TO NODE 13.00 IS CODE = 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================\~ TOTAL NUMBER OF STREAMS = 2 11.0 CONFLBENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 9.19 RAINFALL INTENSITY (INCH/HR) = 3.65 TOTAL~STREAM AREA(ACRES) = '1.79 PEAK FLOW RATE (CFS) AT CONFLUENCE = 5.89 **************************************************************************** FLOW PROCESS FROM NODE 14.00 TO NODE 15.00 IS CODE = 21 -------------------,--------------------------------------------------------- >>>>>RATIONAL 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 = 447.00 UPSTREAM ELEVATION = 1262.10 DOWNSTREAM ELEVATION = 1257.10 ELEVATION DIFFERENCE = 5.00 TC =.393*[( 447.00**3)/( 5.00)]**.2 = 11.075 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.290 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1!4 ACRE LOT) RUNOFF COEFFICIENT = .8307 SUBAREA RUNOFF (CFS) = 2.71 TOTAL :AREA(ACRES) = .99 TOTAL RUNOFF(CFS) = 2.71 **************************************************************************** FLOW PROCESS FROM NODE 15.00 TO NODE 13 . 00 IS CODE = 6 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1257.10 180.00 = 18.00 DOWNSTREAM ELEVATION = 1252.00 CURB HEIGHT (INCHES) = 6. DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .32 3.36 'ZP 1'1 HALFSTREET FLOODWIDTH(FEET); 8.50 AVERAGE FLOW VELOCITY(FEET/SEC.); 3.82 PRODUCT OF DEPTH&VELOCITY ; 1.22 STREETFLOW TRAVELTIME(MIN); .78 TC(MIN); 11.86 100 YEAR RAINFALL INTENSITY(INCH/HOUR) ; 3.169 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT; .8285 SUBAREA AREA (ACRES) ; .50 SUBAREA RUNOFF(CFS) ; SUMMED AREA (ACRES) ; 1.49 TOTAL RUNOFF (CFS) ; END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) ; .34 HALFSTREET FLOODWIDTH(FEET) ; FLOW VELOCITY(FEET/SEC.) ; 3.79 DEPTH*VELOCITY; 1. 31 4.02 9.50 1. 28 **************************************************************************** FLOW PROCESS FROM NODE 13.00 TO NODE 13.00 IS CODE; 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- TOTAL NUMBER OF STREAMS; 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OFCONCENTRATION(MIN.) ; 11.86 RAINFALL INTENSITY (INCH/HR) ; 3.17 TOTAL STREAM AREA (ACRES) ; 1.49 PEAK FLOW RATE (CFS) AT CONFLUENCE = 4.02 ** CONFLUENCE DATA ** STREAM RUNOFF NUMBER (CFS) 1 5.89 2 4.02 Tc (MIN. ) 9.19 11.86 INTENSITY ( INCH/HOUR) 3.646 3.169 AREA (ACRE) 1. 79 1.49 *********************************WARNING********************************** 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 CONFLUENCE FORMULJ. USED FOR 2 STREAMS. ** PEAK FLOW RATE TABLE ** STREAM RUNOFF Tc "l- \ INTENSITY .,-, NUMBER 1 2 (CFS) 9.00 9.14 (MIN.) 9.19 11. 86 ( INCH/HOUR) 3.646 3.169 COMPUTED CONFLUENCE PEAK FLOW RATE (CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 9~OO 3.28 AS FOLLOWS: Tc (MIN.) = 9.19 **************************************************************************** FLOW PROCESS FROM NODE 20.00 TO NODE 21.00 IS CODE = 21 >>>>>RATIONAL 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 = 279.00 UPSTREAM ELEVATION = 1246.50 DOWNSTR~k~ ELEVATION = 1239.10 ELEVATION DIFFERENCE = 7.40 TC = .393*[( 279.00**3)/( 7.40)]**.2 = 7.717 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.013 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8415 SUBAREA RUNOFF(CFS) = 2.30 TOTAL AREA(ACRES) = .68 TOTAL RUNOFF(CFS) = 2.30 **************************************************************************** FLOW PROCESS FROM NODE 30.00 TO NODE 31.00 IS CODE = 21 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE) TC = K* [(LENGTH**3) 1 (ELEVATION CHANGE)] **.2 INITIAL SUBAREA FLOW-LENGTH = 334.00 UPSTREAM ELEVATION = 1262.10 DOWNSTREAM ELEVATION = 1257.86 ELEVATION DIFFERENCE = 4.24 TC = .393*[( 334.00**3)/( 4.24)]**.2 = 9.610 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.557 SOIL CLAS:3IFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8351 1..-z.. Ir, SUBAREA RUNOFF (CFS) ; TOTAL 'AREA(ACRES) ; 2.26 .76 TOTAL RUNOFF(CFS) ; 2.26 ********1******************************************************************** FLOW PROCESS FROM NODE 31. 00 TO NODE 32.00 IS CODE; 6 --------.-------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM ELEVATION ; STREET LENGTH(FEET) ; STREET HALFWIDTH(FEET) 1257.86 310.00 ; 18.00 DOWNSTREAM ELEVATION; 1246.04 CURB HEIGHT(INCHES) ; 6. DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK; 16.00 INTERIOR STREET CROSSFALL(DECIMAL); .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF; 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS); 3.49 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET); .32 HALFSTREET FLOODWIDTH(FEET); 8.50 AVERAGE FLOW VELOCITY(FEET/SEC.); 3.97 PRODUCT OF DEPTH&VELOCITY ; 1.26 STREETFLOW TRAVELTIME(MIN); 1.30 TC(MIN); 10.91 100 YEAR RAINFALL INTENSITY (INCH/HOUR) ; 3.317 SOIL CLASSIFICATION IS "e" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT; .8312 SUBAREA 'AREA (ACRES) ; .89 SUBAREA RUNOFF (CFS) ; SUMMED AREA(ACRES); 1.65 TOTAL RUNOFF(CFS) ; END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) ; .34 HALFSTREET FLOODWIDTH(FEET) ; FLOW VELOCITY(FEET/SEC.) ; 4.45 DEPTH*VELOCITY; 2.45 4.71 9.50 1. 50 **************************************************************************** FLOW PROCESS FROM NODE 33.00 TO NODE 34.00 IS CODE = 21 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE) TC - K*[(LENGTH**3)/(ELEVATION CHANGE)] **.2 '],.1> INITIAL SUBAREA FLOW-LENGTH = 334.00 UPSTREAM ELEVATION = 1262.10 DOWNSTREAM ELEVATION = 1258.06 ELEVATION DIFFERENCE = 4.04 TC =.393*[( 334.00**3)/{ 4.04)]**.2 = 9.703 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.538 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8348 SUBAREA RUNOFF(CFS) = 2.04 TOTAL :AREA{ACRES) = .69 TOTAL RUNOFF(CFS) = 2.04 **************************************************************************** FLOW PROCESS FROM NODE 34.00 TO NODE 35.00 IS CODE = 6 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = STREET LENGTH (FEET) = STREET HALFWIDTH(FEET) 1258.06 310.00 = 18.00 DOWNSTREAM ELEVATION = CURB HEIGHT (INCHES) = 6. 1245.77 DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIRIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.26 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .30 HALFSTREET FLOODWIDTH(FEET) = 7.75 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.30 PRODUCT OF DEPTH&VELOCITY = 1.30 STREETFLOW TRAVELTIME(MIN) = 1.20 TC(MIN) = 10.91 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.318 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8312 SUBAREA AREA (ACRES) = .89 SUBAREA RUNOFF(CFS) = SUMMED AREA (ACRES) = 1.58 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTHCFEET) = .34 HALFSTREET FLOODWIDTH(FEET) = FLOW VELOCITY(FEET/SEC.) = 4.24 DEPTH*VELOCITY = 2.45 4.49 9.50 1.43 7..A... ********,******************************************************************** FLOW PROCESS FROM NODE 40.00 TO NODE 41.00 IS CODE = 21 --------.-------------------------------------------------------------------- >>>>>RATIONAL 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 = 447.00 UPSTREAM ELEVATION = 1262.40 DOWNSTREAM ELEVATION = 1257.40 ELEVATION DIFFERENCE = 5.00 TC = .393*({ 447.00**3)/{ 5.00)]**.2 = 11.075 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.290 SOIL CLASSIFICATION IS "C" SINGLE-Fk~ILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8307 SUBAREA RUNOFF(CFS) = 3.25 TOTAL AREA (ACRES) = 1.19 TOTAL RUNOFF(CFS) = 3.25 **************************************************************************** FLOW PROCESS FROM NODE 41. 00 TO NODE 42.00 IS CODE = 6 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1257.40 180.00 = 18.00 DOWNSTREAM ELEVATION = 1252.20 CURB HEIGHT (INCHES) = 6. DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = 4.05 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .34 ~LFSTREET FLOODWIDTH(FEET) = 9.50 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.83 PRODUCT OF DEPTH&VELOCITY = 1.29 STREETFLOW TRAVELTIME(MIN) = .78 TC(MIN) = 11.86 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.169 SOIL CLASSIFICATION IS "C" ~ ~. SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8285 SUBAREA AREA (ACRES) = .61 SUBAREA RUNOFF (CFS) = SUMMED AREA(ACRES) = 1.80 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS, DEPTH (:FEET) = .36 HALF STREET FLOODWIDTH (FEET) = 10.50 FLOW VELOCITY(FEET/SEC.) = 3.85 DEPTH*VELOCITY = 1.38 1. 60 4.85 ********,******************************************************************** FLOW PROCESS FROM NODE 42.00 TO NODE 43.00 IS CODE = 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1252.20 305.00 = 18.00 DOWNSTREAM ELEVATION = 1230.50 CURB HEIGHT(INCHES) = 6. DISTANCE FROM CROWN TO CROSS FALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 5.37 STREET FLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .32 HALFSTREET FLOODWIDTH(FEET) = 8.50 AVERAGE FLOW VELOCITY(FEET/SEC.) = 6.11 PRODUCT OF DEPTH&VELOCITY = 1.94 STREETFLOW TRAVELTIME (MIN) = .83 TC(MIN) = 12.69 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.053 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8262 SUBAREA AREA (ACRES) = .41 SUBAREA RUNOFF(CFS) = SUMMED AREA (ACRES) = 2.21 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = FLOW VELOCITY(FEET/SEC.) = 5.56 DEPTH*VELOCITY = 1. 03 5.89 9.50 1. 88 **************************************************************************** FLOW PROCESS FROM NODE 60.00 TO NODE 61.00 IS CODE = 21 ---------------------------------------------------------------------------- ~~ >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< -- ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE) TC = ~*[{LENGTH**3)/{ELEVATION CHANGE)] **.2 INITIAL SUBAREA FLOW-LENGTH = 185.00 UPSTREAM ELEVATION = 1271.10 DOWNSTREAM ELEVATION = 1269.00 ELEVATION DIFFERENCE = 2.10 TC = .393*[{ 185.00**3)/{ 2.10)]**.2 = 7.759 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 4.001 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY{1/4 ACRE LOT) RUNOFF COEFFICIENT = .8414 SUBAREA RUNOFF{CFS) 1.58 TOTAL 'AREA(ACRES) = .47 TOTAL RUNOFF{CFS) = 1.58 ********.******************************************************************** FLOW PROCESS FROM NODE 61.00 TO NODE 62.00 IS CODE = 6 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1269.00 554.00 = 18.00 DOWNSTREAM ELEVATION = 1252.40 CURB HEIGHT (INCHES) = 6. DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 16.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF 1 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = 3.73 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = 9.50 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.52 PRODUCT OF DEPTH&VELOCITY = 1.19 STREETFLOW TRAVELTIME (MIN) = 2.63 TC(MIN) = 10.38 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.409 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8327 SUBAREA AREA(ACRES) = 1.49 SUBAREA RUNOFF(CFS) = SUMMED AREA (ACRES) = 1.96 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: 4.23 5.81 z"..... u DEPTH ('FEET) = .38 HALFSTREET FLOODWIDTH (FEET) = 11. 50 FLOW VELOCITY(FEET/SEC.) = 3.93 DEPTH*VELOCITY = 1.49 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- END OF STUDY SUMMARY: PEAK FLOW RATE (CFS) = TOTAL AREA{ACRES) = 5.81 1. 96 Tc{MIN.) = 10.38 ============================================================================ END OF RATIONAL METHOD ANALYSIS , ~ .215 APPENDIX C HYDRAULIC ANALYSIS (SURFACE STREETS AND CATCH BASINS) ~o.. **************************************************************************** HYDRAULIC ELEMENTS - I PROGRAM PACKAGE (C) Copyright 1982-96 Adva~ced Engineering Software (aes) Ver. 6.1 Release Date: 01/01/96 License ID 1261 Analysis prepared by: RICK ENGINEERING COMPANY WATER RESOURCES DIVISION 5620 FRIARS ROAD, SAN DIEGO, 92110 (619) 291-0707 TIME/DATE OF STUDY: 10:11 2/26/1999 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ************************** DESCRIPTION OF STUDY ************************** * IN 13193T TRACT 29033 TEMEKU HILLS * SUMP CATCH BASIN AT NODE 13 * EDL * * * ************************************************************************** **************************************************************************** >>>>SUMP TYPE BASIN INPUT INFORMATION<<<< Curb Inlet Capacities are approximated based on the Bureau of Public Roads nomograph plots for flowby basins and sump basins. BASIN INFLOW (CFS) = BASIN OPENING(FEET) = DEPTH OF WATER(FEET) = 9.00 .67 .67 >>>>CALCULATED ESTIMATED SUMP BASIN WIDTH(FEET) = 5.32 ~~~~~~============~~==========~~================================~=========== ?P . 0< (() ~. *******************,********************************************************* HYDRAULIC ELEMENTS - I PROGRAM PACKAGE (C) Copyright, 1982-96 Advanced Engineering Software (aes) Ver. 6.1 Release Date: 01/01/96 License ID 1261 Analysis prepared by: RICK ENGINEERING COMPANY WATER RESOURCES DIVISION 5620 FRIARS ROAD, SAN DIEGO, 92110 (619) 291-0707 TIME/DATE OF STUDY: 15: 9 2/ 9/1999 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ************************** DESCRIPTION OF STUDY ************************** * IN 13~93T TRACT 29033 TEMEKU HILLS * * FLOWBY CATCH BASIN AT NODE 35 * * EDL * *******,******************************************************************* ********,******************************************************************** >>>>FLOWBY CATCH BASIN INLET CAPACITY INPUT INFORMATION<<<< Curb Inlet Capacities are approximated based on the Bureau of Public Roads nomograph plots for flowby basins and sump basins. STREETFLOW(CFS) = 4.49 GTJTTER FLOWDEPTH(FEET) = .50 BASIN LOCAL DEPRESSION (FEET) = .33 FLOWBY BASIN WIDTH(FEET) = 9.27 >>>>CALCULATED BASIN WIDTH FOR TOTAL INTERCEPTION = 9.3 >>>>CALCULATED ESTIMATED INTERCEPTION (CFS) = 4.5 ;;;;~~~~=;~=====;;;;;;;=;;=;================================================ 'b\ '27 ~. **************************************************************************** HYDRAULIC ELEMENTS - I PROGRAM PACKAGE (e) Copyright 1982-96 Advanced Engi~eering Software (aes) Ver. 6.1 Release Date: 01/01/96 License ID 1261 Analysis prepared by: RICK ENGINEERING COMPANY WATER RESOURCES DIVISION 5620 FRIARS ROAD, SAN DIEGO, 92110 (619) 291-0707 TIME/DATE OF STUDY: 11:28 2/26/1999 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ** * * * * *,* * * *** * * ** * * * ****** DESCRIPTION OF STUDY * * * * * ** * * * * * * * *** * ** * **** * * IN 131.93T TRACT 29033 TEMEKU HILLS * FLOWBY CATCH BASIN AT NODE 32 * EDL * * * ************************************************************************** ********,******************************************************************** >>>>FLOWBY CATCH BASIN INLET CAPACITY INPUT INFORMATION<<<< Curb Inlet Capacities are approximated based on the Bureau of Public Roads nomograph plots for flowby basins and sump basins. STREETFLOW(CFS) = 4.71 GUTTER FLOWDEPTH(FEET) = .50 BASIN LOCAL DEPRESSION(FEET) = .33 FLOWBY BASIN WIDTH(FEET) = 9.70 >>>>,CALCULATED BASIN WIDTH FOR TOTAL INTERCEPTION = 9.7 >>>>~ALCULATED ESTIMATED INTERCEPTION (CFS) = 4.7 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ?J~ a? . APPENDIX D HYDRAULIC ANALYSIS (WSPGN - INPUT, EDIT AND OUTPUT FILES) '?f7 193ta1.wsn T1 IN 13193T TRACT 29033 TEMEKU HILLS 0 T2 LINE A-I T3 EDL FEB 2,6, 1999 SO 1409.761233.67 1 1234.75 JX 1573.381239.75 1 2 .013 4.90 1240.21 43.2 .000 T.S 1575.691240.26 2 .013 20.340 R 1607.501242.54 2 .013 .000 .000 0 SH 1607.501242.54 2 1242.54 CD 1 4 1 .00 2.00 .00 .00 .00 .0 CD 2 4 0 .00 1. 50 .00 .00 .00 .0 Q 4.71 .0 :A Page 1 "Jt1 W S P G N - EDIT LISTING - Version 7.0 Date: 2- 6-1999 Time:ll:34:l9 WATER SURF ACE PROFILE - CHANNEL DEFINITION LISTING PAGE 1 I CARD SECT CHN NO OF AVE PIER HEIGHT 1 BASE ZL ZR INV Y(l) Y(2) Y(3) Y(4) Y(5) Y(6) Y(7) Y(8) Y(9) Y(lO) I CODE NO TYPE PIER/PIP WIDTIl DIAMETER WIDTH DROP :CD 1 4 1 'CD 2 4 0 2.00 1.50 WSPGN PAGENO 1 WATER SURFACE PROFILE - TITLE CARD LISTING HEADING LINE NO 1 IS - IN 13193T TRACT 29033 TEMEKU HILLS HEADING LINE NO 2 IS - LINE A-I HEADING LINE NO 3 IS - EDL FEB 5, 1999 WSPGN PAGENO 2 WATER SURF ACE PROFILE - ELEMENT CARD LISTING ELEMENTNO 1 IS A SYSTEM OUTLET U/S DATA STATION INVERT SECT W S ELEV 1409.761233.67 1 1234.75 ELEMENT NO 2 IS A JUNCTION * * * * STATION INVERT SECT LAT-l LAT-2 N Q3 1573.38 1239.75 1 2 0 .013 ELEMENT NO 3 IS A TRANSITION * STATION INVERT SECT N 1575.69 1240.26 2 ELEMENT NO 4 IS A REACH * STATION INVERT SECT N 1607.501242.54 2 .013 ELEMENT NO 5 IS A SYSTEM HEADWORKS * STATION INVERT SECT W S ELEV 1607.501242.54 2 1242.54 .013 * U/S DATA Q4 INVERT-3 INVERT-4 PHI 3 PHI 4 4.90 .00 1240.21 .00 43.20 .00 RADIUS ANGLE .000 .000 * *U/SDAT RADIUS ANGLE 6.507 20.340 U/S DATA RADIUS ANGLE ANG PT MAN H .000 .000 .000 0 * UIS DATA * * ?P ?,,., <il ~ ua. o + :> Z H II :> <il "' <il (I) ~ (I) o ;0 ~ o :I: Z H Z o H E-< ~ :> <il "' <il E-< 0:: <il :> Z H.... 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W S P G N - EDIT LISTING - Version 7.0 Date: 2-26-1999 Time: 10:24: 12 WATER SURF ACE PROFILE - CHANNEL DEFINITION LISTING PAGE 1 CARD SECT CHN NO OF AVE PIER HEIGHT 1 BASE ZL ZR INV Y(l) Y(2) Y(3) Y(4) Y(5) Y(6) Y(7) Y(8) Y(9) Y(lO) CODE NO TYPE PIERJPIP WIDTIl DIAMETER WIDTH DROP CD 1 4 1 1.50 WSPGN PAGENO 1 WATER SURFACE PROFILE - TITLE CARD LISTING HEADING LINE NO 1 IS - IN 13193TTRACT29033 TEMEKUHlLLS HEADING LINE NO 2 IS - LINE "B" HEADING LINE NO 3 IS - EDL FEB 26,1999 WSPGN PAGENO 2 WATER SURF ACE PROFILE - ELEMENT CARD LISTING ,ELEMENT NO 1 IS A SYSTEM OUTLET * * * U/S DATA STATION INVERT SECT 1485.161242.16 1 ELEMENT NO .2 IS A REACH U/S DATA STATION INVERT SECT N 1535.11 1245.82 1 .013 'ELEMENT NO 3 IS A SYSTEM HEADWORKS U/S DATA STATION INVERT SECT 1535.11 1245.82 1 W S ELEV 1242.81 * * * RADIUS ANGLE ANG PT MAN H .000 .000 .000 0 * * W S ELEV 1245.82 A,"" .. \' 'It 193tb.wsn T1 IN 13193T TRACT 29033 TEMEKU HILLS 0 T2 LINE "Brr T3 EDL FEB 26, 1999 SO 1485.l61242.l6 1 l242.81 R 1535.11l245.82 1 .013 .000 .000 0 SH 1535.111245.82 1 1245.82 CD 1 4 1 .00 1. 50 .00 .00 .00 .0 Q 9.00 .0 Page 1 A,\ , '" ~. 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