HomeMy WebLinkAboutCT 05-10; POINSETTIA PROPERTY; SUPPLEMENTAL GEOTECHNICAL DRAINAGE RECOMMENDATIONS; 2011-02-28•
i7irh Sitrai Inc.
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BETTER PEOPLE. BETTER SERVICE. BrTEPPFSlJLTs
February 28, 2011 Project No. 10707-10G
Mr. Chris Courtney
K. HOVNANIAN HOMES•
1500 South Haven Avenue, Suite 100
Ontario, CA 91761
Subject: Supplemental Geotechnical Drainage Recommendations, The Tides Development,
Located on the Southwest Corner of Poinsettia Lane and Lowder Lane, City of
Carlsbad, San Diego County, California
Pursuant to your request, Earth-Strata has provided supplemental drainage design recommendations for
the subject property located on the southwest corner of Poinsettia Lane and Lowder Lane in the City of
Carlsbad, San Diego County, California. This letter has been prepared to address a comment from the City
of Carlsbad regarding the distance from property lines to the proposed drainage swales in some
locations. From a geotechnical standpoint, the distance from property line to the proposed drainage
swale may be reduced from 2 to 1 feet. It is our opinion that this reduction will not have a significant
impact on the proposed development.
The opportunity to be of service is appreciated. Should you have any questions or require further
clarification, please notify our office at your earliest convenience.
Chad E. Welke, PG, CEG, PE
Principal Geologist/Engineer
CW/am
Attachments: Retaining Wall Calculation Sheet No. 4 (Rear of Text)
APPENDIX A - References
Distribution: (1) Addressee
(4) Craig Kahien, Rick Engineering
Respectfully submitted,
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APPENDIX A
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REFERENCES
APPENDIX A
References
Earth-Strata, Inc., 2010, Interpretive Report for Infiltration System, Proposed 29-Lot Residential
Development, Located on the Southwest Corner of Poinsettia Lane and Lowder Lane City of
Carlsbad, San Diego County, California, dated May 6.
________• 2010a, Prelimihary Geotechnical Interpretive Report, Proposed 29-Lot Residential Development,
Located on the Southwest Corner of Poinsettia Lane and Lowder Lane City of Carlsbad, San
Diego County, California, dated May 11.
________• 2010b, Geotechnical Review of Draft Retaining Wall Alternative Analysis Report, Proposed 29-Lot
Residential Development, Located on the Southwest Corner of Poinsettia Lane and Lowder
Lane City of Carlsbad, San Diego County, California, dated May 25.
2010, Preliminary Turf Block Recommendation Letter, Proposed Residential Development,
Located on the Southwest Corner of Poinsettia Lane and Lowder Lane, City of Carlsbad, San
Diego County, California, dated September 14.
2010, Geotechnical Review of Foundation Plans for the Proposed 25-Lot Residential Development,
Located on the Southwest Corner of Poinsettia Lane and Pasceo Del Norte, City of Carlsbad,
San Diego County, California, dated October 20.
________• 2010, Supplemental Geotechnical Retaining Wall Design Recommendations, Proposed Poinsettia
Residential Development, Located on the Southwest Corner of Poinsettia Lane and Lowder
Lane City of Carlsbad, San Diego County, California, dated October 20.
2010, Update Geotechnical Retaining Wall Design Recommendations, Proposed La Marea
Residential Development, Located on the Southwest Corner of Poinsettia Lane and Lowder
Lane City of Carlsbad, San Diego County, California, dated November 11.
2010, Geotechnical Evaluation of Storm Water Management for the Proposed 25-Lot Residential
Development, Located on the Southwest Corner of Poinsettia Lane and Pasceo Del Norte, City
of Carlsbad, San Diego County, California, dated November 11.
_______• 2011, Revised Geotechnical Evaluation of Storm Water Management and Recommendations for
Side Yard Drainage for the Proposed 31-Lot Residential Development, Located on the
Southwest Corner of Poinsettia Lane and Pasceo Del Norte, City of Carlsbad, San Diego
County, California, January 25.
________• 2011, Second Supplemental Geotechnical Retaining Wall Design Recommendations, The Tides
Development, Located on the Southwest Corner of Poinsettia Lane and Lowder Lane, City of
Carlsbad, San Diego County, California, February 15.
Lawson and Associates, Inc., 2005, Preliminary Geotechnical Investigation Report, Proposed 29-Lot Residential
Development, Southwest Corner of Poinsettia Lane and Paseo Del Norte, City of Carlsbad, California, dated February
24.