HomeMy WebLinkAboutCT 15-05; QUARRY CREEK PA R-3; PAVEMENT RECOMMENDATIONS-RIGID PAVEMENT; FIRE ASSCESS FOR DEGA PLACE; 2019-08-27. .,,.
GEOCON
INCORPORATED
GEOTECHNICAL ■ENVIRONMENTAL ■ MATERIALS
Project No. 07135-42-06
August 27, 2019
Cornerstone Communities
4365 Executive Drive, Suite 600
San Diego, California 92121
Attention: Mr. Jack Robson
Subject: PAVEMENT RECOMMENDATIONS -RIGID PAVEMENT
FIRE ACCESS FOR DEGA PLACE
QUARRY CREEK-R-3
CARLSBAD, CALIFORNIA
Reference: Private Improvement Plans for: Quarry Creek -Planning Area R-3, Project No. C. T 15-
05, Drawing No. 484-5E, Carlsbad, California, prepared by SB&O Inc., with a City of
Carlsbad approval date ofJune 14, 2016. GiR i'C -\7
Dear Mr. Robson:
In accordance with the request of your site superintendent, we have prepared this letter to provide rigid
(Portland cement concrete, PCC) pavement recommendations for the subject project.
The fire access is currently constructed as 12 inches of aggregate base over native subgrade. The
aggregate base should be removed to accommodate a 6-inch PCC pavement section. The rigid
pavement subgrade should be moisture conditioned and compacted to 95% relative compaction. The
recommendations for rigid pavement sections are presented on Table I.
Should you have questions regarding this letter, or if we may be of further service, please contact the
undersigned at your convenience.
Very truly yours,
GEOCON INCORPORATED
' ~-~
~e;c. Mikesell
GE 2533
RCM:RSA:dmc
(e-mail) Addressee
6960 Flanders Drive ■ San Diego, California 92121-2974 ■ Telephone 858.558.6900 ■ Fax 858.558.6159
;.. .
TABLE I
RIGID PAVEMENT RECOMMENDATIONS
Designated Pavement Location Portland Cement Concrete (inches)
Fire access at intersection of Dega Place and Marron Road 6
Project No. 07135-42-06 August 27, 2019