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Home My WebLink AboutParcel Map 8405 Parcel 3 Observation & Field Density Test of Rough & Fine Grading Ear h echnics /lJ t/f ~() 1. J a,,e =--- REPORT OF OBSERVATION AND FIELD DENSITY TESTING ROUGH AND FINE GRADING SOCCER AND PLAYING FIELD PAD PARCEL 3, PARCEL MAP 8405 JERAMIE DRIVE TEMECULA, CAUFORNIA '. - PROJECT NO. 99186-01 JUNE 12,1999 Prepared For: Ken Smith 44040 Jeramie Drive Temecula, California 92592 Earth Technics P.O. Box 891989, Temecula, California 92589 (909) 699-5451 June 12, 1999 Project No. 99186-01 Mr. Ken smith 44040 Jeramie Drive Temecula, California 92592 SUBJECT: REPORT OF OBSERVATION AND FIELD DENSITY TESTING ROUGH AND FINE GRADING Soccer and Playing Field Pad Parcel 3, Parcel Map 8405 Jeramie Drive Temecula, California Gentlemen: INTRODUCTION This report presents the results of our observation and testing performed during construction and grading for the soccer and playing field pad during rough and fine grading of the subject lot. , The pad was constructed at the extreme east end of the Jeramie Drive cul-de-sac approximately 600 feet east of John Warner Drive in the Temecula area of Riverside County. The results of our Field Density Tests obtained during grading are tabulated in Table I, Results of Compaction Tests. The approximate locations of the tests are shown on the Plot Plan, Plate 1. The 30-scale Grading Plans were prepared by Lawrence Phelps, Temecula, undated, and were used to plot our data and guide the grading, along with field staking. proiect Description The proposed development consisted cutting the narrow ridge on the north and northeast portions of the lot and placing fill on the southern end of the pad to create a large 120 by 240 foot rectangular pad. The access driveway was constructed entirely in cut from the existing residence at 44040 Jeramie Drive. In general, the pad required cuts up to 22 feet on the northeast and fills to 35 feet on the south-southwest. Cut and fill slopes were constructed at finished inclinations of 2:1 (horizontal to vertical) or flatter. Although the current construction is to create a large playing field, the grading was performed with the consideration that the site may be ultimately used for a single- family residence. The cut slopes and daylight cuts consist of dense sedimentary bedrock that had no adversely oriented bedding to develop stability problems, and are stable as constructed. The fill slopes are stable as constructed, based on high strength values. The granular nature of the fill slopes could be easily eroded and should be planted as soon as possible. \ o . SCALE INDEX MAP 2000 N 4000 . feel INDEX ~lAP OF PARCEL 3, P.M. 8405 JE~AMIE DRIVE, TEMECULA CALIFORNIA SOURCE:U.S.G.S. 7'> MIN. QUAD. TEMECULA 1968 (Pr.. 1978) 2- 99186-01 Page 3 Purpose of Gradinq The purpose of the grading was to prepare the site for the proposed construction of the large rectangular soccer and playing field, and possibly in the future, a one and two-story single family residence, and driveway access. GRADING PROCEDURES Gradinq Procedures The site was stripped of the heavy growth and grasses, in the areas to receive fill and the pad area, and removed off-site. The soft soil/colluvium in areas to receive fill was then overexcavated 1 1/2 - 4 feet or until the dense underlying sedimentary bedrock was encountered. Fill keys were necessary as shown on Plate 1. The fill materials were brought to near optimum moisture utilizing a 1.5 inch fire hose when necessary, and compacted with a large Caterpillar D8K bulldozer. , The pad was in transition from cut to fill, so the entire pad area was overexcavated 30 inches and recompacted. The grading contractor was Gene Burchett, Fallbrook. TESTING Field Densitv Testinq Field density testing was performed in accordance with ASTM D1556-64 (Sand Cone Method). The elevations and the results of the field density tests are presented in Table I of this report. The approximate location of the tests are shown on the Grading Plan, Plate 1. Maximum Densitv Determinations Maximum density/optimum moisture determinations were made from representative samples of on-site soils used in the fill operations. The tests were performed in accordance with ASTM D 1557 which consist of compacting 5 equal layers of soil in aI/3D cubic foot volume mold with 25 blows of a 10 pound hammer falling 18 inches. The results of the Maximum density/optimum determination are presented herein as Table II, Laboratory Test Results. ~ 99186-01 Page 4 Expansion Testinq A finished grade sample was obtained and tested for expansion utilizing the U.B.C. 29-2 method. The test yielded an expansion index (E.I.) of 17 which is very low expansion in classification with the U.B.C. Table 18-1-B. Soluble soil sulfate was 30 ppm allowing normal Type II concrete with 2500 psi strength, in any future construction. SUMMARY Our description of grading and backfill operations, as well as observations and testing services, were limited to those grading operations performed between May 4 and June 11, 1999. The conclusions and recommendations contained herein have been based upon our observation and testing as noted. It is our opinion, that the work preformed in the areas denoted has generally been accomplished in accordance with the recommendations of the March 15, 1999 Preliminary Geotechnical Investigation by Earth Technics, the U.B.C. Appendix Chapter 33, the Riverside County Grading Code, as amended by Ordinance No. 457 specifications, and the requirements of the regulating agencies and is acceptable for its intended purpose. The pad may also be utilized for a single- family residence of 1-2 stories without additional grading. No conclusions or warranties are made for areas not tested or observed. This report should be considered subject to review by the controlling authorities. This opportunity to be of service is sincerely appreciated. If you have any questions, please call. ~ 99186-01 Page 5 Larry J. Fast R.C.E. 29150 Registration WLS/LJF:ss Distribution: (4) Attachments: I. ,. Index Map - Page 2 Plate 1 (30-scale) - Grading Plan (In Pocket) Table I - Results of Compaction Tests Table II - Summary of Maximum Density Testing ./ ::::> .. TABLE I RESULTS OF COMPACTION TESTS' - JOB NO.: 99186-01 NAME: SMITH DATE: 6-12-99 MOISTURE UNIT DRY RELATIVE. SOIL TEST NO. DATE DEPTH CONTENT DEN~W COMPACTION TYPE C") CPC '. . C") 1 5-4-99 1123 ~.1 1UD.1 86./ II. I "ey rYes\: Sloe 1Sl:' L: la 5-5-99 1123 13.6. 112.4 9108 A Retest 1st lift 2 5-6-99 1125 14.0 113.1 92.4 A Fill West slope 3 " 1128 10.2 .119.4 92.8 B " " " 4 5-7-99 1130 9.7 118.1 91.8 B " " " 5 5-10-99 1131 10.0 120.4 93.6 B " " II 6 5-11-99 1133 9.5 117.3 91.2 B .i. " " .7 5-12-99 1134 8.5 116.5 90.6 B t: " " " 8 5-13-99 1135 12.7 109.5 89.4* A Fill Southwest 8a 5-13-99 1135 13.1 110.6 90.4 A " " " 9 II 1136 14.1 111.5 91.1 A " " II 10 5-14-99 1138 15.1 110.3 90.1 A Fill N.West 11 5-17-99 1139 .15.2 111.7 9103 A Fill N West Finish 12 II 1120 14.9 114.6 93.6 A Key 1st lift South 13 5-18-99 1121 13.3 119.2 97.4 A Fill S. Slope 14 5-25-99 1125 10.6 114.8 95.8 A Fill E. Slope 15 " 1127 10.8 113.5 92.7 A " " " 16 5-26-99 1129 9.1 119.7 93.1 B " " " 17 " 1131 8;7 116.9 90.9 B " " " 18 6-1-99 1133 9.2 117.2 91.1 B Fill East Slope 19 6-2-99 1135 8.6 117.0 ,91.0 B II " " 20 " 1137 9.0 116.8 90.8 ,B " " '" 21 6-3-99 1139 8.6 118.4 . 92.1 B Fill South Slope 22 6-7-99 . 1139 9.1 117.4 91.3 B Finish'East Side 23 6-11-99 1139 10.1 118.1 91.8 B Finish Pad 24 6-11-99 1139 9.5 119.2 92.7 B Pad Overex~'. . I ' SEE PLAN FOR TEST LOCATIONS . , :. ~S8nd Cone ASTM D1558-84 ~-Drlve CyUnder ASTM D2837-71 !'!-Nucle.r ASTM 3017-78 **TEST FAILED, SEE RETEST ft , Earth Technics o TABLE ]I LABORATORY TEST RESULTS - J08 NO.: 99186-01 SMITH DATE: 6-12-99 NAME: SOIL TYPE CLASSIFICATION . MAXIMUM OPTIMUM DENSITY (PCF) MOISTURE (%1 A On~Site Dark brown clayey silty W/sand 1:12.4 1603 B On-Site Light yellowish brown silty sand trace of clay minor gravel 128.6 10.1 , . . . , 1 EARTH TECHNICS