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Pk Rik I Environmental
Materials Testing
March 29, 2010 Project No. I051222-64
Mr. Bill Dalton
THE WAREHOUSE AT CREEKSIDE
41911 5T" Street, suite 302
Temecula, California 92590
Subject: Pavement Recommendations for a Portion of 3rd Street Adjacent to the Proposed Warehouse
at Creekside, Located at 42081 3"d Street, City of Temecula, Riverside County, California
Introduction
Pursuant to your request, LGC Inland, Inc. (LGC) is providing pavement design recommendations for the
portion of 3`d Street adjacent to the proposed Warehouse at Creekside, located at 42081 3`d Street, City of
Temecula, California. Representative samples of the subgrade soils were obtained from the subject site for R-
Value testing.
Laboratory Testing
R-value tests were performed on representative samples collected fi-om the near subgrade soils and were tested in
conformance with California Test Method No. 301. An R-value of 17, obtained from R-value testing of the near
subgrade soils, was used for the pavement design of a portion of 3rd Street, adjacent to the proposed Warehouse at
Creekside. The test results are tabulated below.
SAMPLE LOCATION SAMPLE DESCRIPTION R-VALUE
Street Subgrade Dark Brown Clayey SAND 17
41531 Date Street 9 Murrieta • CA 92562-7086 •(951) 461-1919 . Fax (951) 461-7677
Recommendations
Flexible and Rigid Pavement Design
Based on a design R-value of 17 for near subgrade soils, and the provided Traffic Index (TI) of 6.0, we recommend the
following minimum paving sections.
Asphaltic Concrete Pavement Design
(A portion of and Street adj. to The Warehouse
at Creekside
Alternate I
Traffic Index 6.0
Design R-value 17
AC Thickness 4.0
AB Thickness 10.5
Notes: AC—Asphaltic Concrete (inch)
AB —Aggregate Base (inch)
Portland Concrete Cement Desi
Design R-Value PCC Aggregate Base
PCC Section 17 6.0 4.0
Notes: PCC— Portland Concrete Cement (inch)
AB — Aggregate Base (inch)
Concrete pavement should be reinforcement with a minimum of#3 bars at 18-inches on center, in both directions,
placed at mid-height of the concrete.
Subgrade soil immediately below the aggregate base (base) should be compacted to a minimum of 90 percent
relative compaction based on ASTM Test Method D1557 to a minimum depth of 12 inches. Final subgrade
compaction should be performed prior to placing base and after all utility trench backfills have been compacted
and tested.
Base materials should consist of Class 2 aggregate base conforming to Section 26-1.02B of the State of
California Standard Specifications or crushed aggregate base conforming to Section 200-2 of the Standard
Specifications for Public Works Construction (Greenbook). Base materials should be compacted to a minimum
of 95 percent relative compaction based on ASTM Test Method D1557. The base materials should be near
optimum moisture content when compacted. Asphaltic concrete materials and construction should conform to
Section 203 of the Greenbook.
Project No. 1051222-64 Page 2 March 29, 2010
i •
Closure
We appreciate the opportunity to be of service. Should you have any questions, please do not hesitate to contact
this office.
Sincerely, �oQpUggt pHI
L G C INLAND, INC. qQ �C'Oyp
01616
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Blake Elliott, RCE 70705Op CAltf� Joseph Montgomery
Project Engineer Project Manager
BJE/CEJ
Distribution: (4) Addressee
Project No. 1051222-64 Page 3 March 29, 2010