Laserfiche WebLink
NW .i <br /> OLD RIVER GOLF COURSE <br /> Page No. 7 <br /> and 20 were assumed. It is recommended that the rough graded <br /> proposed roadways be observed by our office and if required, <br /> additional R-value tests performed in order to obtain a <br /> representative design value. Pavement sections have been designed <br /> based on various traffic indexes. A traffic index of 4.0 <br /> represents light automobile traffic and parking, 5.0 represents <br /> light truck and heavy automobile traffic, and 6 .0 represents <br /> moderate truck traffic. If traffic indexes are different then <br /> these our office should be contacted and new designs can be <br /> provided. Designs are based on the fourth edition of the CalTrans <br /> Highway Design Manual. The pavement sections are presented next. <br /> PAVEMENT SECTION DESIGN <br /> Pavement Section-inches <br /> Subgrade Traffic Asphalt Aggregate Aggregate <br /> "R Value Index Traffic Concrete Base Subbase <br /> 5 4.0 auto 2 . 0 9. 0 -- <br /> 20 4. 0 it 2.0 6 .5 -- <br /> 5 5.0 auto/lt 2.5 11 . 0 -- <br /> truck <br /> 20 5 .0 " 2 . 5 8 . 5 -- <br /> 5 6.0 mod truck 3 . 0 6 .0 8. 0 <br /> 20 6 .0 " 3 .0 10. 5 <br /> The paving materials must conform to the requirements of the <br /> State of California, Department of Transportation, Standard <br /> Specification. Type B asphaltic concrete and class 2 aggregate <br /> base and subbase should be used. <br /> The pavement area subgrade should be stripped of all organic <br /> matter, loose soil, etc. , and any required cuts made. A minimum of <br /> 6 inches of compacted subgrade should be provided beneath the <br /> pavement sections. The subgrade should be compacted to dry <br /> densities in excess of 95 percent of the maximum dry density <br /> obtainable in the ASTM D1557 Compaction Test. The subgrade should <br /> have a minimum design R-value. <br /> VIII LIMITATIONS <br /> The recommendations of this report are based on the <br /> information provided regarding the proposed construction as well as <br /> - P VERSp� <br /> s <br /> - Z W <br /> Assoc. <br /> P <br />