HomeMy WebLinkAboutCT 14-08; WESTIN HOTEL AND TIMESHARE; UPDATED SHORING RECOMMENDATIONS; DWG 496-2A, GR 2016-0002; 2017-02-08OFFICE LOCATIONS
SAN DIEGO
IMPERIAL COUNTY
6295 Ferris Square
Suite C
San Diego, CA 92 J 21
Tel: 858.537.3999
Fax: 858.5:17.3990
ORANGE COUNTY
CORPORATE BRANCH
2992 E. La Palma Avenue
Suite A
Anaheim, CA 92806
Tel: 714.632.2999
Fax: 714.632.2974
INLAND EMPIRE
[4467 Meridian Parkway
Building2A
Riverside, CA 92518
Tel: 951.653.4999
Fax: 951.653.4666
QC/LA/INLAND EMPIRE
DISPATCH
800.491.2990
SAN DIEGO DISPATCH
888.844.5060
www.mrglinc.com
February 8, 2017
Grand Pacific Resorts, Inc.
5900 Pasteur Court, Suite 200
Carlsbad, California 92008
Attention: Mr. Houston Arnold
MTGL Project No: 1916A10
MTGLLogNo: 17-469
Subject: UPDATED SHORING RECOMMENDATIONS
Lot 9 Development
Westin Hotel and Timeshare
Carlsbad, California
Dear Mr. Arnold:
Per your request, we have reviewed the Temporary Shoring Plans and calculations
prepared by Shoring Design Group for the Lot 9 Development at the Grand Pacific
Resorts in Carlsbad, California for general conformance to the geotechnical
recommendations presented in our referenced geotechnical investigation. The soil
design pressure values used for the shoring are consistent with the recommendations
presented in our investigation and are acceptable for use in the design. A summary of
the values used are presented below:
Passive Earth Pressure = 350 psf/ft
Active Earth Pressure = 30 psf/ft (level)
Active Earth Pressure= 60 psf/ft (with 1: 1 backcut slope)
Minimum Live Load= 72 psf
We appreciate this opportunity to be of continued service to you. Should you have any
questions regarding the information contained herein, please contact us at your earliest
convenience.
Respectfully submitted,
MTGL, Inc.
~ (v;{
Sam E. Valdez, RCE 56226, RGE 2813
Vice President I Engineering
Attachment: References
Lot 9 Development -Updated Shoring Recommendations
Carlsbad, California
REFERENCES
MTGL Project No. 1916Al0
MTGLLogNo. 17-469
MTGL, Inc. (2014). Geotechnical Investigation, Lot 9 and CMWD Water Tank Site, Grand Pacific
Resorts, Carlsbad, California, MTGL Project No. 1916A10, Log No. 16-1168, October 20.
Shoring Desjgn Group (2016). Temporary Shoring Plans for: Lot 9 Development Westin Hotel and
Timeshare, GPA 14-03, Drawing No. 496-2A, November 11.
Shoring Design Group (2017). Temporary Shoring Design Submittal, Westin Hotel, Carlsbad,
California, Job# 16-133, February 7.