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HomeMy WebLinkAboutCT 14-03; BEACHWALK AT MADISON; FINAL SOILS REPORT; 2018-04-06GEOTECHNICAL | ENVIRONMENTAL | MATERIALS All material herein © 2018 GeoTek, Inc.All Rights Reserved April 6, 2018 PN 3441-SD3 Vesta Pacific Development 1818 Second Avenue San Diego, California 92011 Attention:Mr.Chris McComic Subject:Report of Geotechnical Testing and Observation Beachwalk at Madison Madison Street Improvements -Sta 23+74 to 24+74 Carlsbad,California Dear Mr.McComic, In accordance with your request, GeoTek, Inc. is pleased to provide herewith the results of our geotechnical testing and observation services associated with the services provided for the trench backfills, pavement replacement and widening in Madison Street for the Beachwalk at Madison CT 14-03. Construction Summary This report is limited to the easterly side of Madison Street from approximately Sta 23+74 to 24+74.Our testing and observations were provided on an on-call basis. Density tests were taken on trench soil backfills, subgrade, base and asphalt.Test results are enclosed as Table 1. The laboratory maximum dry density and optimum moisture content for soil types tested were determined in general accordance with test method ASTM D1557.Given the fairly small quantities of base used and given that the plant provided values seemed reasonable and in keeping with our experience for other sites those were used in our field testing.The asphalt wet density was also based on the plant data. Field density and laboratory test results indicate that the fill material, base and asphalt were compacted to a minimum of 95 percent relative compaction at the locations tested. GeoTek, Inc. 1384 Poinsettia Avenue, Suite A Vista, CA 92081-8505 (760) 599-0509 Office (760) 599-0593 Fa:, www.geotekusa.com Vesta Pacific Development April 6, 2018 Report of Geotechnical Testing and Observation Project No.3441-SD3 Sta 23+74 to 24+74 Madison Street Page 2 Conclusions It is our professional opinion that relative compaction of 95% for the subgrade,base and asphalt and are considered acceptable for the intended use of the structure. Recommendations Any additional grading or construction on the site should be done in accordance with the currently applicable codes and standards.Recommendations should be sought from the Geotechnical Engineer prior to additional grading. LIMITATIONS Fills under the purview of this report were selective tested by GeoTek, Inc. and are found to be in reasonable compliance with applicable provisions of the current California Building Code (CBC).Our field density testing and observation services were provided post grading and limited to areas adjacent to the structure.Testing may not represent the entire area. No warranty is implied nor made.This report is subject to review by the controlling authorities for this project.GeoTek, Inc. accepts neither responsibility nor liability for work,testing,or recommendations performed or provided by others. We appreciate the opportunity to be of service on this project.Please contact the undersigned if you have any questions. Respectfully submitted, GeoTek,Inc. Timothy E. Metcalfe, CEG 1142 Principal Geologist Chris E. Lillback PE 35007 Senior Project Engineer II Vesta Pacific Development April 6, 2018 Report of Geotechnical Testing and Observation Project No.3441-SD3 Sta 23+74 to 24+74 Madison Street Page 3 References: 1)Report of Geotechnical Testing and Observation, APN 203-110-01, Madison Street Project Carlsbad, California, by GeoTek,Inc., dated November 11, 2016 2)Report of Geotechnical Testing and Observation, Beachwalk at Madison -Post Rough Grading, APN 203-110-01, Madison Street Project, Carlsbad, California by GeoTek, Inc., dated November 8, 2017 3)Improvement Plans for Beachwalk at Madison, Madison Street Widening, CPD 14-03 / RP14-16 prepared by Pasco, Laret, Suitor & Associates Dated March 29, 2016 II Vesta Pacific Development April 6, 2018 Report of Geotechnical Testing and Observation Project No.3441-SD3 Sta 23+74 to 24+74,Madison Street Laboratory Testing TABLE 1 LABORATORY TEST RESULTS Soil Description Maximum Dry Density (pcf) Optimum Moisture (% H2O) A Light Brown Silty Sand 123.2 7.7 I Import Class II 122 11.0 AC Asphalt 147 -- Base Mountain Materials provided max 121 11.0 Base D Escondido Sand and Gravel Base 122 11.0 E Escondido Sand and Gravel Base 118.2 12.0 AC1 CA Commerical Asphalt from Miramar Plant 146.1 -- AC2 CA Commerical Asphalt Plant 145.6 -- II VESTA PACIFIC DEVELOPMENT Madison Street Project Carlsbad, CA GeoTek, Inc. Street 4/6/2018 Project No.: 3441 -SD3 Page 1 of 1 DATE Test No.Location Lot No. Sta No. Elev/ Depth Moisture Content (%) Dry Density (pcf) Soil Type Maximum Density (pcf) Test Type Relative Compaction (%) 12/29/16 1 Area # 1 T.S.G 7.9 119.7 A 123.2 N 97 2 Area # 2 T.S.G 7.3 121.2 A 123.2 N 98 3 Area # 3 T.S.G 7.3 118.3 A 123.2 N 96 4 Area # 1 T.Base 10.5 117.2 I 122.0 N 96 5 Area # 2 T.Base 10.9 116.3 I 122.0 N 95 6 Area # 3 T.Base 10.2 115.9 I 122.0 N 95 7 Area # 1 T.Asph. 10.2 143.3 AC 147.0 N 97 8 Area # 2 T.Asph. 10.2 142.7 AC 147.0 N 97 9 Area # 3 T.Asph. 10.2 141.7 AC 147.0 N 96 12/30/16 10 Area # 4 T.S.G 7.8 117.7 A 123.2 N 96 11 Area # 5 T.S.G 8.0 118.5 A 123.2 N 96 12 Area # 4 T.Base 10.2 115.9 I 122.0 N 95 13 Area # 5 T.Base 10.4 116.6 I 122.0 N 96 14 Area # 4 T.Asph. 10.4 142.9 AC 147.0 N 97 15 Area # 5 T.Asph. 10.4 141.3 AC 147.0 N 96 8/29/17 16 Driveway Garage Entry FSG 7.1 123.2 A 123.2 N 100 17 Driveway Garage Entry FSG 8.2 121.3 A 123.2 N 98 18 Driveway Garage Entry FSG 7.7 120.7 A 123.2 N 98 9/1/17 19 Driveway Garage Entry TOB 10.5 117.1 Base 121.0 N 97 20 Driveway Garage Entry TOB 12.6 117.2 Base 121.0 N 97 21 Driveway Garage Entry TOB 11.3 118.4 Base 121.0 N 98 9/15/17 22 Driveway Entrance Subgrade -1.5' 8.1 120.3 A 123.2 N 98 23 Driveway Entrance Base -8' 12.9 116.7 D 122.0 N 96 11/1/17 24 East Section Subgrade -1' 8.2 119.7 A 123.2 N 97 25 East Section Subgrade -1' 9.4 121.6 A 123.2 N 99 26 East Section Base -6" 12.7 115.3 E 118.5 N 97 27 East Section Base -6" 13.2 115.1 E 118.5 N 97 28 East Section Asphalt -2" - 145.2 AC1 146.1 N 99 29 East Section Asphalt -2" - 144.6 AC1 146.1 N 99 11/2/17 30 East Section FG - 139.1 AC2 145.6 N 96 31 East Section FG - 139.4 AC2 145.6 N 96 32 East Section FG - 140.0 AC2 145.6 N 96 TABLE 1 SUMMARY OF FIELD DENSITY TESTS Street Note: N = Nuclear Guage Test FSG+Finished SubGrade FG = Finished Grade Test All elevations are approximate