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<br />TOTAL IMPROVEMENT COSTS <br /> <br />Cost <br />$ 0 <br />$ (840) <br />$12,200 <br /> <br />$12,200 <br /> <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 />COMMENTARY - SHEET 10 <br /> <br />The existing grass-lined channels in this section of Little Dry Creek, as evident on <br />the plan view of Sheet 10, has capacity adequate for conveyance of the 100-year flood. <br />The depth at which the 100-year flood overtops Webster Way exceeds the maximum depths <br />recommended in the Urban Storm Drainage Criteria Manual (Referenc E). Since Webster <br />Way is a local street and not considered as part of the access network for emergency <br />vehicles and because the potential flood damage resulting from the undersized culverts <br />beneath Webster Way and Pierce Street is minimal, the enlargement of these culverts was <br />not included as part of this Master Plan. <br />The floodplain should continue to be regulated and all channel modifications should <br />be closely monitored. Residents in the vicinity of the 100-year floodplain should be <br />notified annually of the potential flood hazards and the acquisition of flood insurance by <br />those property owners who should be adversely affected by the 100-year flood should be <br />encouraged. The channel should be cleared of all debris regularly during the flood season <br />and after all major storms. <br /> <br />TOTAL IMPROVEMENT COSTS - SHEET 10 <br />Item <br />TOTAL CONSTRUCTION COSTS <br />Annual Operation and Maintenance Costs <br />Present Worth Operation and Maintenance Costs <br />