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L£ROY CRANDALL <br />AND ASSOCIATES <br />Page 9 <br />to truck traffic may be paved with four inches of asphaltic paving and eight <br />inches of base course placed on the compacted subgrade. The recommended pavement <br />sections are considered as to be the minimum acceptable; careful inspection <br />is recommended to verify that the recommended thicknesses or greater are <br />achieved.The use of thicker sections would result in reduced future main- <br />tenance. The base course should meet the specifications for Class 2 Aggregate <br />Base as defined in Section 26 of the State of California, Department of Public <br />Works, Division of Highways Standard Specifications, dated January, 1969. <br />Proper drainage of the paved areas will be very important and should be pro- <br />vided since this will reduce moisture infiltration into the subgrade and increase <br />the life of the paving. <br />If the paved areas were to be raised by placing one foot or more of <br />imported fill soils and the characteristics of the imported fill soils were <br />significantly better than those of the natural soils, the required paving <br />sections could be reduced. We would be pleased to consult with you on. this <br />when grading plans are developed and the source of imported fill soils is <br />known. <br />-000-