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i• <br />APPENDIX A <br />DESIGN CALCULATTONS <br />Structural Number VeriGptfon <br />• <br />(AASHTO Design oC Pavement Structure - 1986) <br />Traffic: Design 18 kip ESAL: <br />Reliability: <br />Overall Deviation: <br />Soils: Resilient Modulus <br />PSI Loss Due To Traf£tc: <br />Required Structural Number = 136 <br />Required Gravel Section <br /> <br />Minimum Structural Number(MSN) required = 1.36 <br />Gravel Section Required, using 9 inches of existing subbase gravels = > <br />(1.36. 9(0.0.9))/0.14 = 3.9 = > <br />Add 4 inches of new road base gravels. <br />6,500 <br />50 percent <br />0.40 <br />5000 psi <br />2.0 <br />~R d~~ <br />