HomeMy WebLinkAbout3188; COLLEGE BLVD EXTENSTION; R-VALUE TEST RESULTS/RECOMMENDED STRUCTURAL SECTIONS; 1987-03-11-
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APR 29198
IN CORPO TEc
SAN DIEGO GEOTECHNICAL CONSULTANTS, INC.
SOIL ENGINEERING & ENGINEERING GEOLOGY
March 11 , 1,987 5 5 5
NBS-Lowry Job No. 05-6664-001-00-10
400 S. Ramona Avenue, Suite 116 Log No. 7-1292-65 - Carona, California 91719-1424
Attention:. Mr. Bruce Lyon •.
SUBJECT: R-VALUE TEST RESULTS/RECOMMENDED STRUCTURAL SECTIONS
College Boulevard Extension
55 Carlsbad, California
S
Gentlemen: •,
Provided herein are the results of R-Value-.tests performed on
representative samples from the subject site and the
S
S corresponding structural sections we recommend. The samples were
obtained under the direction of a representative from your
S firm. The traffic index of 8.5, used in the calculations of the
structural sections, was obtained from 'Rick Engineering. The
test numbers, test locations, stations represented by the test,
R-Value, and recommended base sections for various asphalt . S S
thickness are as follows: S
S S
Test Test S R- Base Thickness (Inches) .5 S -No. Location . Stations Represented Value 3" AC VAC • 5"AC
1 8 + 25 50 + 00 through 15' + 00 9 . 22 20 17 .
S
2 21 + 00 15 + 00 through 28 + 00 <5 23.5 21 18.5 .
3. 39 + 50 •28 +00 through 45 + 00 28. 16 . 13.5 11 . 4 . 56 + 00 45 +00 through 58 + 50 12 21 1.9 16 . S 5 . 72 + 50 76 + 50 through 68 + 00 16 20 17.5 15 -
6 79+ 00 76 + 00 through 81 + 00 16 20 17.5 15 . 5 7 83 + 00 81 + 00 through. 84 + 00 14 . . 20.5 18 15.5
.S
S R-Value samples were not obtained for the station intervals 58 + S
50 through 68± 00 and 84 ± 00 through 99 + 00, as these areas
were not completed-to subgrade when the sampling occurred. S
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6455 NANCY RIDGE DRIVE • SUITE 200 • SAN DIEGO CALIFORNIA 92121.9 (619) 587 0250