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HomeMy WebLinkAboutCT 15-08; CARLSBAD RANCH PA 5 PHASE 3; SLOPE STABILITY ANALYSIS; 2016-06-08RECORD COPY c,--r 1-oc technical Engineering onstruction Inspection Materials Testing Environmental OFFICE LOCATIONS SAN DIEGO IMPERIAL COUNTY 6295 Ferris Square Suite C San Diego CA 92121 Tel: 858.537.3999 Fax: 858.537.3990 ORANGE Cour CORPORATE BRANCH 2992 E. La Patina Avenue Suite A Anaheim, CA 92806 Tel: 714.632.2999 Fax: 714.632.2974 INDlO 44917 Golf Center Pkwy Suite I Indio. CA 92201 Tel: 760.342.4677 Fax: 760.342.4525 OC/LA/INLANO EMPIRE DISPATCH 800.491.2990 SANDIEGo DISPATCH 888.844.5060 V/WV.fl1tgliI1C.COfll June 8, 2016 Grand Pacific Resorts MTGL Project No. 1916B1 I 5900 Pasteur Court, Suite 200 MTGL Log No. 16-611 Carlsbad, California 92008 Attention: Mr. Houston Arnold Subject: SLOPE STABILITY ANALYSIS RECEIVED PA-5 Phase 3 Anchor Retaining Wall Marbrisa Resorts - Phase ifi JUN 10 206 Grand Pacific Resorts Carlsbad, California LAND DEVELOPMENT ENGI NEERING Reference: MTGL, Inc. (2015). Geotechnical Investigation, Marbrisa Resorts - Phase III, Grand Pacific Resorts, Carlsbad, California, MTGL Project No. 1916A11, MTGL Log No. 15-1063, April 24. Red One Engineering, Inc. (2016). PA-5 Phase 3 Anchor Retaining Wall Plans, 5 Sheets. Dear Mr. Arnold: In accordance with your request, we are providing this letter addressing the global stability of the planned anchor retaining walls to be located within Phase III of Marbrisa Resorts. The referenced plans show eight anchor retaining walls with a maximum wall height of seven feet. We performed slope stability analysis of the planned anchor retaining walls. Based on our slope stability analysis, the global stability of the slopes which have the anchor retaining walls are considered geotechnically stable with regard to deep seated failures. The findings and conclusions contained in this letter were based on the site conditions as they exist at the time of our study using the standard of care and level of skill ordinarily exercised under similar circumstances by reputable soil engineers and geologists currently practicing in this or similar localities. No warranty, express or implied, is made as to the conclusions and professional advice included in this report. INLAND Esu'IRE 14,467 Meridian Parkway Building 2A Riverside, CA 92518 Tel: 951.653.4999 Fax: 951.653.4666 ii Marbrisa Resorts - Phase 3 MTGL Project No. 1916B 11 Carlsbad, California MTGL Log No. 16-611 We appreciate this opportunity to be of service to you. Should you have any questions regarding the information contained herein, please contact us at your earliest convenience. Respectfully submitted, MTGL, Inc. Sam E. Valdez, RCE 56226, GE 2813 Vice President I Chief Engineering Page 2 of 2 '- -,