Level 2 Strategic Flood Risk Assessment (.pdf ... - Wigan Council

Design Flood EventFluvial Depths (m)Surface water Depths (m)Estimatedminimumdepth (m)Estimatedmaximumdepth (m)Estimatedmeandepth (m)Estimatedminimumdepth (m)Estimatedmaximumdepth (m)Estimatedmeandepth (m)Wig 161 1.3% (1 in 75) 0 2.2 0.5 0 1.1 01% (1 in 100) 0 2.2 0.50.5% (1 in 200) 0 2.2 0.4 0 1.3 00.1% (1 in 1000) 0 2.4 0.5 0 2.1 0.1Wig 655 1.3% (1 in 75) --- --- --- 0 0 01% (1 in 100) --- --- ---0.5% (1 in 200) --- --- --- 0 0 00.1% (1 in 1000) --- --- --- 0 0 0Wig 047 1.3% (1 in 75) --- --- --- 0 0.1 01% (1 in 100) --- --- ---0.5% (1 in 200) --- --- --- 0 0.1 00.1% (1 in 1000) --- --- --- 0 0.2 0Wig 140 1.3% (1 in 75) --- --- --- 0 0.2 01% (1 in 100) --- --- ---0.5% (1 in 200) --- --- --- 0 0.2 00.1% (1 in 1000) --- --- --- 0 0.4 0.1Wig 137 1.3% (1 in 75) 0 3.6 0.4 0 0.9 01% (1 in 100) 0 3.7 0.40.5% (1 in 200) 0 3.7 0.4 0 1.9 0.10.1% (1 in 1000) 0 3.7 0.4 0 3.5 0.2Wig 695 1.3% (1 in 75) 0 1.7 0.3 0 0.1 01% (1 in 100) 0 1.7 0.30.5% (1 in 200) 0 1.7 0.3 0 0.4 00.1% (1 in 1000) 0 1.8 0.4 0 1.8 0.1Wig 694 1.3% (1 in 75) --- --- --- 0 0.5 0.11% (1 in 100) --- --- ---0.5% (1 in 200) --- --- --- 0 0.6 0.20.1% (1 in 1000) --- --- --- 0 0.7 0.2Wig 740 1.3% (1 in 75) 0 2.7 0.6 0 1.3 01% (1 in 100) 0.1 2.8 0.60.5% (1 in 200) 0 2.9 0.7 0 2 00.1% (1 in 1000) 0 3.1 0.8 0 3.5 0.3Wig 131 1.3% (1 in 75) 0 3.5 1 0 1.8 01% (1 in 100) 0 3.6 0.90.5% (1 in 200) 0 3.7 0.6 0 2.4 0.10.1% (1 in 1000) 0 4 0.7 0 4.1 0.2Wig 060 1.3% (1 in 75) --- --- --- 0 0.9 0.11% (1 in 100) --- --- ---0.5% (1 in 200) --- --- --- 0 1.1 0.10.1% (1 in 1000) --- --- --- 0 1.3 0.1Wig 657 1.3% (1 in 75) 0 1 0.4 0 0.4 0.11% (1 in 100) 0 1 0.40.5% (1 in 200) 0 1.1 0.4 0 0.6 0.10.1% (1 in 1000) 0 1.2 0.5 0 0.9 0.3Wig 125 1.3% (1 in 75) 0 1.8 1.1 0 0.8 0.31% (1 in 100) 0 1.8 1.20.5% (1 in 200) 0 2.1 1.4 0 1.2 0.80.1% (1 in 1000) 0.2 2.3 1.7 0 2 1.5Wig 706A 1.3% (1 in 75) 0 2.1 1 0 1 0.21% (1 in 100) 0.1 2.2 1.10.5% (1 in 200) 0.3 2.4 1.3 0 1.5 0.60.1% (1 in 1000) 0.6 2.5 1.6 0.5 2.3 1.4