HomeMy WebLinkAboutCT 14-04; MILES BUENA VISTA; REVISED ADDENDUM PRELIMINARY GEOTECHNICAL EVALUATION; 2014-07-08c,r -D-:
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Geotechnucal. Geologic. Coastal • Environmental
5741 Palmer Way • Carlsbad, California 92010 • (760) 438-3155,. FAX (760) 931-0915. • Www.geosoilsinc.com
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July 8: 2014 .
W.O. 6637-Al-SC
Miles-Pacific, LP
do bHA, Inc. . ..
5115 Avenida Encinas, Suite L -
Carlsbad, California 92008-8700
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Attention Mr. Rod Bradley and Mr. Dale Clark F
Subject: Revised Addendum to. Preliminary Geotechnical Evaluation, Proposed
. . . Residential Subdivision, 1833 Buena Vista Way, Carlsbad, San Diego
County, California - 41t - VtSTA -
References: 1. "Preliminary Geotchnical Evaluation, Proposed Residential Subdivision, 1833 Buena Vista
Way, Carlsbad, San Diego County, California," W.O. 6637-A-SC, dated March 17, 2014, by
- -.
F GeoSoils, Inc..,
2. "City of Carlsbad Engineering Standards, General Design Standards," Volume 1, 2004
Edition, by City of Carlsbad (2008 revisions).
Dear Mr. Bradley and Mr. Clark:
GeoSoils, Inc. (GSl) is providing this revised addendum to our preliminary geotechnical
evaluation report (see Reference 1). This addendum provides preliminary asphaltic
concrete pavement sections, and Portlarid concrete cement pavement sections that
conform to City of Carlsbad minimum criteria, indicated in Reference 2. Unless specifically
superceded herein, the conclusions and recommendations provided in Reference 1 are
still considered valid and applicable and should be appropriately implemented during the •' -
balance of project design and construction.
The revised preliminary asphaltic concrete pavement and Portland concrete cement
pavement sections are included in the table on the following page:
RETWJ
OCT 28 O16 .
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LAND DL'i: C 'A \IT
ENGNEEFth3
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I ASPHALTIC CONCRETE PAVEMENT I
TRAFFIC SUBGRADE A.C. THICKNESS CLASS 2 AGGREGATE
T.t.<1J BASE THICKNESSC2l AREA A-VALUE {Inches) <Inches}
Private Street 4.5 30(3) 4.0<4> 4.0(4)
Private Street 5.0 30<3> 4.0<4> 4.0<4>
<1> Assumed Tl values based on a review of Reference 2. The actual value should be confirmed by the Project Civil
Engineer prior to construction.
<2> Denotes standard Caltrans Class 2 aggregate base R .2:_78, SE .2:_22).
<3> Assumed.
<4> City of Carlsbad minimum thickness.
PORTLAND CONCRETE CEMENT PAVEMENTS {PCCP)
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TRAFFIC CONCRETE PCCP TRAFFIC CONCRETE PCCP
AREAS TYPE THICKNESS AREAS TYPE THICKNESS
(Inches) {Inches)
520-C-2500 7.0 520-C-2500 8.0
Light Vehicles Heavy Truck Traffic
560-C-3250 6.0 560-C-3250 7.0
NOTE: All PCCP is designed as un-reinforced and bearing directly on compacted subgrade. However, a 2-4 inch thick
leveling course of compacted aggregate base, or crushed rock may be considered where pavement subgrade is
uneven due to the presence of coarse rock. All PCCP should be properly detailed Oointing, etc.) per the industry
standard. Pavements may be additionally reinforced with #4 reinforcing bars, placed 12 inches on center, each way,
for imoroved performance. Trash truck loadina oads shall be 8 inches oer the Citv.
LIMITATIONS
The conclusions and recommendations are professional opinions. These opinions have
been derived in accordance with current standards of practice, and no warranty, either
express or implied, is given. Standards of practice are subject to change with time. GSI
assumes no responsibility or liability for work or testing performed by others, or their
inaction; or work performed when GSI is not requested to be onsite, to evaluate if our
recommendations have been properly implemented. Use of this report constitutes an
agreement and consent by the user to all the limitations outlined above, notwithstanding
any other agreements that may be in place. In addition, this report may be subject to
review by the controlling authorities. Thus, this report brings to completion our scope of
services for this portion of the project.
Miles-Pacific, LP
1833 Buena Vista Street, Carlsbad
File:e:\wp12\6600\6637a1 .atp GeoSoils, Inc.
W.0. 6637-A1-SC
July 8, 2014
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If you have any questions or comments regarding this letter, please do not hesitate to
contact the undersigned.
Respectfully submitted,
GeoSoils, Inc.
JPF/DWS/jh
Distribution: (2) Addressee
Miles-Pacific, LP
1833 Buena Vista Street, Carlsbad
File:e:\wp12\6600\6637a1 .atp GeoSoils, Inc.
W.0. 6637-A1-SC
July 8, 2014
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