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Phase A - Alternatives Analysis Report - Urban Drainage and Flood ...

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PHASE A – ALTERNATIVES ANALYSIS REPORTMajor <strong>Drainage</strong>way Planning Update for Hidden Lake-Bates LakeFigure B-1Existing Detention Basins10-Year <strong>and</strong> 100-Year HydrographsHidden LakeBates Lake2,5006002,000500Flow (cfs)1,5001,00010-year Inflow10-year Outflow100-year Inflow100-year OutflowFlow (cfs)40030020010-year Inflow10-year Outflow100-year Inflow100-year Outflow50010000:00 2:24 4:48 7:1200:00 1:12 2:24 3:36 4:48 6:00 7:12Time (hours:min)Tim e (hours:min)James Baker ReservoirLake Sangraco2,0001,4001,8001,6001,2001,4001,000Flow (cfs)1,2001,00080010-year Inflow10-year Outflow100-year Inflow100-year OutflowFlow (cfs)80060010-year Inflow10-year Outflow100-year Inflow100-year Outflow600400400200200000:00 0:28 0:57 1:26 1:55 2:24 2:520:00 2:24 4:48 7:12Time (hours:min)Time (hours:min)

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