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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />------------------------------------------------------------------------------------- <br />------------------------------------------------------------------------------------- <br /> <br />Al TERNATIVE <br /> <br />===================================================================================== <br /> <br />DESCRIPTION <br /> <br />ESTIMATED COST <br />I NClUD IJjG <br />25% CONTINGENCY <br /> <br />1 Embankment Dam <br /> <br />I 2 <br /> <br />- Regrade crest of dam and slope to drain <br />- Reconstruct Chambers lake inlet dike <br /> <br />Outl et Works <br /> <br />- Patch, grout and repair existing conduit <br /> <br />Spi 11 ways <br /> <br />- Patch and repair service spillway <br />- Remove riprap from auxiliary spillway, regrade dike, <br />and replace/reinforce riprap. <br />- Regrade crest of emergency spillway <br />- Reconstruct and extend riprap groin on left side of <br />channel <br /> <br />$ 185,000 <br /> <br />Embankment Dam <br /> <br />Remove riprap from emergency spillway <br />- Backfill emergency spillway to dam crest elevation <br />- Repair/reinforce riprap on upstream face of dam <br />- Raise crest of dam, if necessary, to provide one <br />foot of freeboard (0.5 feet maximum), regrade and <br />slope to drai n <br />- Reconstruct Chambers lake inlet dike <br /> <br />Outlet Works <br /> <br />- Reline conduit (steel pipe, PVC pipe or In-situ Form) <br /> <br />Spi 11 ways <br /> <br />- Remove existing service and auxiliary spillways <br />- Construct new roller compacted concrete (RCC) service <br />spi 11 way <br /> <br />$ 390,000 <br /> <br />- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <br /> <br />115lc <br /> <br />E-8 <br />