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June 13,2023 <br />HWA Project No. 2022-188-21 <br />Table 4. Recommended Pavement Layer Thickness for Southeast Area <br />(r) HMA: Hot Mix Asphalt: Binder Grade PG 64H-28. HMA shall be placed in 2 lifts. <br />(2) CSBC: Crushed Surfacing Base Course, compacted as specified. <br />(3) Thickness of Select Borrow may be reduced if base of over-excavation and replacement with <br />CSBC is at least 22 inches below the top of new roadway. <br />Table 5. Recommended Pavement Layer Thickness for Northeast Area <br />HMA: Hot Mix Asphalt: Binder Grade PG 64H-28. HMA shall be placed in 2 lifts. <br />CSBC: Crushed Surfacing Base Course, compacted as specified. <br />Thickness of Select Borrow may be reduced if base of over-excavation and replacement with <br />CSBC is at least 22 inches below the top of new roadway. <br />(l) <br />(2) <br />(3) <br />Material <br />Description <br />Minimum Pavement Layer Thickness <br />(inches) <br />WSDOT Standard <br />Specification <br />HMA'7.0 e-02.1(4) <br />CSBC2 6.0 e-03.e(3) <br />Select Borrow 9.03 e-03.r4(2) <br />Material <br />Description <br />Minimum Pavement Layer Thickness <br />(inches) <br />WSDOT Standard <br />Specification <br />HMAI 7.0 9-02.r(4) <br />CSBC2 6.0 e-03.e(3) <br />Select Borrow 9.03 9-03.14(2) <br />2022-188-21 KCTS - Final Geotechnical Report 19 HWAGEOSCIE}.ICES INC.