Minnegang Creek Flood Study Report - Wollongong City Council

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BRANCH CHAINAGE PMF 1% AEP 2% AEP 5% AEP 20% AEPRANCHBY3 0.057 41.61 41.55 41.54 41.53 41.52RANCHBY3 0.104 36.13 35.77 35.70 35.65 35.53RANCHBY4 0.000 42.08 42.02 42.01 42.00 41.98RANCHBY4 0.008 41.84 41.79 41.79 41.78 41.77RANCHBY4 0.057 36.83 36.75 36.74 36.73 36.70RANCHBY4 0.107 33.89 33.75 33.73 33.71 33.66LAKEHTS2 0.000 49.31 49.25 49.24 49.23 49.22LAKEHTS2 0.136 41.52 41.42 41.40 41.39 41.36LAKEHTS2 0.243 37.55 37.48 37.47 37.46 37.44LAKEHTS2 0.289 36.11 36.02 36.00 35.97 35.90LAKEHTS2 0.345 33.89 33.75 33.73 33.71 33.66LAKEHTS2 0.345 33.89 33.75 33.73 33.71 33.66LAKEHTS2 0.415 31.34 31.18 31.16 31.15 31.06LAKEHTS2 0.463 30.63 30.36 30.33 30.30 30.22CANBERRA 0.000 23.57 23.56 23.56 23.55 23.55CANBERRA 0.080 11.79 11.69 11.67 11.66 11.62CANBERRA 0.101 9.97 9.76 9.71 9.68 9.60CANBERRA 0.155 8.11 8.02 7.99 7.97 7.93CANBERRA 0.231 4.46 3.71 3.58 3.43 3.20KARRABAH 0.000 43.12 43.09 43.07 43.06 43.03KARRABAH 0.021 42.23 42.18 42.17 42.17 42.15KARRABAH 0.043 41.32 41.21 41.19 41.17 41.14GILGAND 0.000 34.87 34.83 34.83 34.82 34.81GILGAND 0.053 31.47 31.40 31.39 31.38 31.35GILGAND 0.058 31.45 31.38 31.37 31.36 31.35DENISE1 0.005 30.53 30.47 30.46 30.45 30.42DENISE1 0.055 23.55 23.49 23.48 23.47 23.45DENISE1 0.160 17.92 17.81 17.80 17.79 17.76DENISE1 0.160 17.92 17.81 17.80 17.79 17.76DENISE1 0.170 17.91 17.81 17.79 17.78 17.75DENISE1 0.234 14.81 13.97 13.85 13.73 13.56DENISE2 0.005 32.52 32.48 32.47 32.47 32.45DENISE2 0.073 24.89 24.87 24.87 24.86 24.86DENISE2 0.133 17.92 17.81 17.80 17.79 17.76DENISE3 0.000 16.84 16.81 16.80 16.80 16.79DENISE3 0.039 12.64 11.57 11.39 11.17 10.77BARINA 0.000 38.73 38.70 38.70 38.69 38.68SV8507-DO-001 Rev 2 F-418/10/02
BRANCH CHAINAGE PMF 1% AEP 2% AEP 5% AEP 20% AEPBARINA 0.018 37.83 37.80 37.80 37.79 37.78BARINA 0.046 36.52 36.47 36.47 36.46 36.45BARINA 0.078 33.65 33.58 33.57 33.56 33.54BARINA 0.181 31.10 31.03 31.02 31.02 31.00BARINA 0.307 27.82 27.54 27.50 27.46 27.37NORWEIR 1.960 3.36 2.90 2.85 2.80 2.72NORWEIR 1.980 3.35 2.89 2.85 2.80 2.72PIPE_1 0.000 27.44 27.06 27.03 26.98 26.89PIPE_1 0.005 27.44 27.06 27.03 26.98 26.89PIPE_1 0.005 27.44 27.06 27.03 26.98 26.89PIPE_1 0.026 22.51 22.51 22.51 22.51 22.51PIPE_1 0.026 22.51 22.51 22.51 22.51 22.51PIPE_1 0.078 23.09 22.81 22.75 22.67 22.42PIPE_1 0.078 23.09 22.81 22.75 22.67 22.42PIPE_1 0.131 21.93 21.56 21.49 21.42 21.14PIPE_1 0.131 21.93 21.56 21.49 21.42 21.14PIPE_1 0.205 20.29 19.81 19.75 19.67 18.20PIPE_1 0.205 20.29 19.81 19.75 19.67 18.20PIPE_1 0.236 20.08 19.69 19.62 19.54 19.41PIPE_1 0.236 20.08 19.69 19.62 19.54 19.41PIPE_1 0.332 15.09 14.29 14.14 14.01 13.79ILLAWEIR 2.029 3.32 2.88 2.84 2.79 2.72ILLAWEIR 2.037 3.24 2.31 2.04 1.82 1.44PIPE_10 0.000 28.94 28.60 28.54 28.49 28.38PIPE_10 0.041 25.07 25.07 25.07 25.07 25.07PIPE_10 0.057 24.68 24.68 24.68 24.68 24.68PIPE_10 0.159 22.57 22.57 22.57 22.57 22.57PIPE_10 0.177 22.51 22.51 22.51 22.51 22.51JANEWEIR 1.335 12.57 11.53 11.35 11.13 10.76JANEWEIR 1.339 10.68 9.68 9.54 9.38 9.11LMH69 0.000 27.44 27.06 27.03 26.98 26.89LMH69 0.003 27.43 27.06 27.03 26.98 26.89LMH70 0.000 23.09 22.81 22.75 22.67 22.42LMH70 0.003 23.09 22.81 22.75 22.67 22.42LMH70A 0.003 21.93 21.56 21.49 21.42 21.14LMH70B 0.000 20.29 19.81 19.75 19.67 18.20LMH70C 0.000 20.08 19.69 19.62 19.54 19.41SV8507-DO-001 Rev 2 F-518/10/02
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Minnegang CreekFlood Study
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© Kellogg Brown & Root Pty Ltd, 20
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SummaryThis report presents the det
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The RatHGL modelling indicated that
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FIGURESSectionPageFigure 2-1 Catchm
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ABBREVIATIONSAEPAHDARIAR&RDCPIFDLEP
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2 Catchment DescriptionThe Minnegan
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Figure 2.1CATCHMENT AND STUDY AREAM
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Illawarra Flood Study investigated
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The catchment was divided into 64 s
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To determine the peak flow from the
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5 Hydraulic Modelling5.1 INTRODUCTI
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Table 5-1 MIKE 11 river branchesBra
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elationship that is determined from
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interaction between the numerical m
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significantly affected since the ex
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Since Points A and B correspond to
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5.9 MODEL SENSITIVITY ANALYSESSensi
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555053.09RANCHBY AVEElevation (m AH
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Creek and pass directly over Northc
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5.12.4 Overland flow pathsAs discus
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Table 6-1 Peak design dischargesBra
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55.050.0PMF Flood Level1% AEP Flood
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1% AEP velocities and flow distribu
Page 60 and 61: 2524.52423.5RL (m)231% AEP velociti
Page 62 and 63: RL (m)3433.53332.53231.53130.53029.
Page 64 and 65: Figure 5-6.Table 6-2 Piped drainage
Page 66 and 67: that handrails above these structur
Page 68 and 69: flooding within the catchment are n
Page 70 and 71: 35.01% AEP flood level - blocked ca
Page 72 and 73: 20.01% AEP flood level - blocked ca
Page 74 and 75: Appendix AReferencesBureau of Meteo
Page 76 and 77: Appendix BGLOSSARYSV8507-DO-001 Rev
Page 78 and 79: hydraulicshydrographhydrologyMIKE 1
Page 80 and 81: Appendix CHistorical Flood DataRECO
Page 82 and 83: Time Rain(mm)Time Rain(mm)Time Rain
Page 85 and 86: Appendix DRAFTS HYDROLOGIC MODELSV8
Page 87 and 88: MHE .5359 .3573 12.10 12.10 5.000 1
Page 89 and 90: Mannings n 0.025 0.025 0.025 0.025
Page 91 and 92: Mannings n 0.025 0.025 0.025 0.025
Page 93 and 94: MH94 67.500 15.00 1.500 2.500 .0000
Page 95 and 96: Appendix EMIKE 11 HYDRAULIC MODELSV
Page 97 and 98: EXIST ; DENISE2 ; 0.005; 0.133; 100
Page 99 and 100: 22.40; 88.40;23.30; 100.00;25.10; 1
Page 101 and 102: 27.26; 128.96;27.43; 137.64;28.08;
Page 103 and 104: 1; 1.250;0;1.800; 1.250; 0.000; 0.0
Page 105 and 106: PIPE_10; 0.108; EXIST;57.000; 159.0
Page 107 and 108: Appendix FMIKE11 RESULTS SUMMARYThi
Page 109: BRANCH CHAINAGE PMF 1% AEP 2% AEP 5
Page 113 and 114: BRANCH CHAINAGE PMF 1% AEP 2% AEP 5
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Minnegang Creek Flood Study Report - Wollongong City Council

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