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Home My WebLink AboutFDP202000009 Other 2020-07-31 (3)Sugar Hollow Dam 19C071.00 7/20/2020 CFS 'No -Rise' HEC-HMS Study Summary Ckd by BWD 7/21/20 Existing Proposed Storm Event Peak Inflow Peak Discharge Max W.S.E. (cfs) (cfs) (ft) Peak Inflow Peak Discharge Max W.S.E. (cfs) (cfs) (ft) 100 Yr, 24 Hr 11147.7 11241.9 976.3 11147.7 11241.8 976.3 Sugar Hollow Dam 19C17071.00 7/20/2020 CFS Existing and Proposed Stage Storage Comparison Ckd by BWD 7/21/20 Existing Area Existing Area EX. Incremental Proposed Area Proposed Area Pro. Incremental Vol. Change Existing Storage Proposed Elevation (sq ft)* (ac) Volume (ac-ft) (sq ft)* (ac) Volume (ac-ft) (ac-ft) (ac-ft)** Storage (ac-ft) 970 0 - - 0 - - - - - 975 3162.9 0.07 0.18 2938.4 0.07 0.17 -0.01 1338.7 1338.7 980 9109.3 0.21 0.70 10778.1 0.25 0.79 0.08 1589.2 1589.3 985 13813.2 0.32 1.32 16169.5 0.37 1.55 0.23 1856.6 1856.8 *Contours isolated within project area and closed to compute incremental areas for comparison. **Incremental storage volume from "Dam Breach Analysis Report & Inundation Mapping" prepared by Schnabel Engineering and dated June 28, 2012