Minnegang Creek Flood Study Report - Wollongong City Council

Mannings n 0.025 0.025 0.025 0.025 0.02 0.05% impervious 5 5 5 10 5 5Initial loss 15 35 10 15 15 15Continuing loss 2.5 2.5 0 2.5 2.5 2.5MH50A 4.45 4.38 4.50 4.62 4.72 4.04MH52 4.52 4.44 4.58 4.68 4.78 4.10MH52C 7.92 7.70 8.02 8.16 8.28 7.05MH53 2.72 2.69 2.75 2.80 2.85 2.49MH54 1.51 1.50 1.53 1.55 1.57 1.37MH56 0.51 0.51 0.52 0.54 0.55 0.42MH59 1.18 1.18 1.20 1.22 1.25 1.05MH60 1.11 1.11 1.13 1.16 1.17 0.96MH61 0.86 0.86 0.87 0.89 0.91 0.73MH62 0.77 0.73 0.79 0.83 0.85 0.63MH67 19.29 17.45 19.74 20.54 21.03 15.85MH68 19.47 17.63 19.93 20.74 21.22 16.03MH69A 27.66 25.34 28.27 28.96 29.50 23.55MH70 27.93 25.60 28.55 29.23 29.76 23.85MH72 0.93 0.92 0.94 0.98 1.00 0.78MH76 0.99 0.99 1.00 1.04 1.06 0.83MH77 29.56 27.13 30.23 30.77 31.23 25.63MH78 28.48 26.16 29.13 29.79 30.29 24.49MH79 30.19 27.69 30.88 31.32 31.75 26.33MH80 30.26 27.76 30.96 31.40 31.83 26.41MH87 0.86 0.75 0.87 0.89 0.91 0.69MH94 0.46 0.41 0.47 0.49 0.51 0.36MH95 0.43 0.38 0.44 0.46 0.47 0.33MH96 0.37 0.32 0.37 0.38 0.40 0.28MH98 1.95 1.77 1.99 2.07 2.12 1.64MH99 2.01 1.83 2.06 2.13 2.17 1.70MHA 1.57 1.56 1.59 1.66 1.69 1.35MHB 1.95 1.95 1.98 2.06 2.09 1.63MHC 16.19 14.62 16.61 17.32 17.81 13.05MHD 17.13 15.47 17.56 18.24 18.78 13.85MHE 17.53 15.82 17.96 18.68 19.21 14.23MHF 30.48 27.95 31.17 31.59 32.01 26.66MHG 35.72 32.78 36.60 36.51 36.82 33.15Table D2 20% AEP flood eventMannings n 0.025 0.025 0.025 0.025 0.02 0.05% impervious 5 5 5 10 5 5Initial loss 15 35 10 15 15 15Continuing loss 2.5 2.5 0 2.5 2.5 2.5MC1 19.90 11.55 20.68 20.54 20.82 17.61MC2 20.24 11.85 21.08 20.88 21.15 18.04MC3 20.49 12.04 21.34 21.11 21.36 18.35SV8507-DO-001 Rev 2 D-418/10/02