HomeMy WebLinkAboutCT 02-19; BRESSI RANCH PA 11; COMPLETION OF SETTLEMENT MONITORING; 2005-07-26c1-o2--11
Leighton and Associates, Inc.
A LEIGHTON GROUP COMPANY
July 26, 2005
Project No. 971009-037
To: Barratt American
5950 Priestly Drive, Suite 101
Carlsbad;-California-92008
Attention: Ms. Janice Patterson
Subject: Completion of Settlement Monitoring, Planning Area PA- 11, Bressi Ranch,
Carlsbad, California
References: Leighton and Associates, 2001, Deep Fill Area Settlement Monitoring
Recommendations, Bressi Ranch, Carlsbad, California, Project No. 971009-006,
dated February 13, 2004 revised February 16, 2004
2004, As-graded Report of Rough and Fine Grading, Lots 1 through
25,. Planning Area PA- 11, Bressi Ranch, Carlsbad Tract No. 00-06, Carlsbad,
California, Project No. 971009-014, dated October 8, 2004
In accordance with the project geotechnical recommendations (referenced above), settlement
monuments were installed upon the completion of the mass or rough grading operations within
the deep fill areas of Planning Area PA-11 of the Bressi Ranch project, located in Carlsbad,
California. A total of four settlement mQnuients were placed within the deep fill area (ie. . fills
greater than 40 feet in depth). The settlement monuments were surveyed generally on a twice
monthly to monthly basis for a minimum period often months.
Based on our evaluation of the survey data obtained from the settlement monuments placed in
Planning Area PA- 11, it is our professional opinion that the primary settlement of the fill soils is
essentially complete. Therefore, from a geotechnical standpoint, construction of the development
may begin. Consequently, survey readings of the monuments in Planning Area PA-I 1 can be
discontinued and the monuments may be removed. Secondary consolidation settlement of the fill
soil may continue; however, future settlements are expected to be less than 2 inches.
3934 Murphy Canyon Road, Suite B205 • San Diego, CA 92123-4425
858.292.8030 • Fax 858.292.0771 • www.leightongeo.com
971009-037
If you have any questions regarding this letter, please contact this office. We appreciate this
opportunity to be of service.
Respectfully submitted,
LEIGHTON AND ASSOCIATES INC. Si0
William D. Olson, RCE 45283
CIVIL
Senior Project Engineer
Randall K. Wagner, dEG 161'0i '
Senior Associate Geologist if No. 16.12
Distribution: (4) Addressee
* (a CERTIFIED "1 *
ENGINEERING
GEOLOGIST
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