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<br />Thc following Table 9, Unit Construction Costs, lists the specific unit costs used in dctclmining the <br />estimated probable construction costs: <br /> <br />TABLE 9 <br />UNIT CONSTRUCTION COSTS <br /> <br />~tern Description <br /> <br />Gabion Baskets <br />Rip Rap <br />Heavy Rip Rap <br />Granular bedding materials <br />Reinforced concrete <br />Concrete channel lining <br />Structural backfill <br />Structural excavation <br />Unclassified excavation and embankment <br />Seeding (native) <br />48" RCP <br />54" RCP <br />60" RCP <br />66" RCP <br />72" RCP <br />78" RCP <br />72" RCP (Jacked) <br />42" CMP (pipe and installation) <br />54" CMP (pipe and installation) <br />6' X 5' Box culvert <br />8' X 5' Box culvert <br />10' X 5' Box culvert <br />12' X 5' Box culvert <br />15' X 6' Box culvert <br /> <br />Unit <br /> <br />Estirn~lted <br />Unit ';;os1 <br /> <br />CY <br />CY <br />CY <br />CY <br />CY <br />CY <br />CY <br />CY <br />CY <br />Acre <br />LF <br />LF <br />LF <br />LF <br />LF <br />LF <br />LF <br />LF <br />LF <br />LF <br />LF <br />LF <br />LF <br />LF <br /> <br />$85.00 <br />$35.00 <br />$45.00 <br />$20.00 <br />$265.00 <br />$180.00 <br />$8.00 <br />$5.00 <br />$2.50 <br />$1000.00 <br />$75.00 <br />$90.00 <br />$120.00 <br />$150.00 <br />$170.00 <br />$200.00 <br />$650.00 <br />$60.00 <br />$70.00 <br />$260.00 <br />$300.00 <br />$400.00 <br />$525.00 <br />$600.00 <br /> <br />NOTE: Pipe and culvert costs do not include utility relocation costs. <br /> <br />B. Preliminary Estimate of Probable Construction Costs <br /> <br />As previously stated, the proposed improvements arc illustrated on the alternate conceptual plans that <br />arc included in Appendix B. Conceptual construction costs were estimated for cach alternate based on <br />the unit construction costs provided in this section and an: also in Appendix B. Preliminary <br />construction costs for the selected alternate are provided in Appendix C. <br />