HomeMy WebLinkAboutCT 00-06; BRESSI RANCH; ADDENDUM TO THE AS-GRADED REPORT OF MASS GRADING CONCERNING THE COMPLETION OF SETTLEMENT MONITORING, PLANNING AREA PA-3; 2004-08-26Leighton and Associates, Inc.
A LEIGHTON GROUP COMPANY
To:
Attention:
Subject:
August 26, 2004
Lennar Communities
1525 Faraday Avenue, Suite 300
Carlsbad, California 92008
Mr. John Slatton
Project No. 971009-014
Addendum to the As-Graded Report of Mass Grading Concerning the Completion
of Settlement Monitoring, Planning Area PA-3, Bressi Ranch, Carlsbad,
California
References: Leighton and Associates, 2004a, As-Graded Report of Mass Grading, Planning
Areas PA-1, PA-2, and PA-3, Metropolitan Street, and a Portion of Town Garden
Road, Gateway Road, and Alicante Road, Carlsbad Tract No. 00-06J Bressi
Ranch, Carlsbad, California, Project No. 971009-014, dated April 15, 2004
----, 2004b, Status of Deep Fill Settlement Monitoring, Planning Areas
PA-1 through PA-5, Bressi Ranch, Carlsbad, California, Project No. 971009-014,
dated August 24, 2004
In accordance with the project geotechnical recommendations, settlement monuments were
installed upon the completion of the fine grading operations for Planning Area P A-3 of the
Bressi Ranch project, located in Carlsbad, California. A total of two settlement monuments were
placed within the deep fill areas (i.e. fills greater than 40 feet in depth) of Planning Area PA-3.
The settlement monuments were surveyed generally on a twice monthly to monthly basis for a
minimum period of five months.
Based on our evaluation of the survey data obtained from the settlement monuments placed in
Planning Area P A-3 of the Bressi Ranch project, it is our professional opinion that. the primary
settlement of the fill soils is essentially complete. Therefore, from a geotechnical standpoint,
construction of the improvements within Planning Area P A-3 may begin. Consequently, survey
readings of the monuments within Planning Area PA-3 can be discontinued and the monuments
may be removed. Secondary consolidation settlement of t · ·
future settlements are expected to be less than 1 inch.
MAR -4 2005
J. T. l{RUER & COMPANY
3934 Murphy Canyon Road, Suite B205 • San Diego, CA 92123-4425
858.292.8030 • Fax 858.292.0771 • www.leightongeo.com
971009-014
If you have any questions regarding this letter, please contact this office. We appreciate this
opportunity to be of service.
Distribution: (2)
(2)
(1)
Addressee
Respectfully submitted,
LEIGHTON AND ASSOCIATES, INC.
William D. Olson, RCE 45283
Senior Project Engineer
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Director of Geology
Sares Regis Group, Attention: Mr. Patrick Russell
Lennar Communities, Attention: Mr. Jim Urbina
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Leighton