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33 <br /> vIf <br /> base. The base material should be compacted to 95 percent of the maximum dry <br /> density determined by ASTM D1557 or California Test No. 216. <br /> Design Pavement Section <br /> For the preceding subgrade and base material recommendations, we recommend <br /> the following pavement sections. <br /> Traffic Index Pavement Sections <br /> 4 2.5" AC over 2.5" Base or <br /> 3" AC over 0" Base <br /> 6 2.5" AC over 7" Base or <br /> 3.5" AC over 4" Base <br /> 8 4" AC over 8" Base or <br /> 5" AC over 6" Base <br /> Because the heaviest loads are likely to occur during construction of the <br /> facility, we suggest you consider delaying paving the access road until the end <br /> of constructions. A check should be made to verify that the base and subgrade <br /> thicknesses are adequate for the anticipated construction wheel loads. Hence it <br /> may be desirable to choose the pavement section from the preceding table with <br /> the thinner AC and thicker base. By delaying paving to late in construction, any <br /> deformations and rutting of the base can be rebladed, infilled, and recompacted <br /> as appropriate. <br /> Proper drainage of the paved and surrounding areas is essential. Grades <br /> should be established to expedite runoff away from the pavements and reduce <br /> moisture infiltration into the base and subgrade. <br /> SEISMIC CONSIDERATIONS <br /> Seismicity and Faulting <br /> Central California is traversed by many active, potentially active, and <br /> inactive faults. Many of these faults have either historically caused widespread <br /> groundshaking and ground rupture, or have the potential to cause groundshaking <br /> and ground rupture. No known active or potentially active faults have been <br /> `1 <br /> 1144A/CC-33 U;McClelland <br />