Minnegang Creek Flood Study Report - Wollongong City Council

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PEAK DISCHARGE (m 3 /s)BRANCH CHAINAGE PMF 1% AEP 2% AEP 5% AEP 20% AEPMINNEGAN 0.026 1.86 1.09 0.97 0.89 0.69MINNEGAN 0.057 2.93 1.71 1.52 1.41 1.10MINNEGAN 0.099 3.02 1.74 1.54 1.43 1.07MINNEGAN 0.152 8.34 4.61 4.10 3.77 2.93MINNEGAN 0.193 8.33 4.48 4.00 3.65 2.86MINNEGAN 0.253 13.53 7.26 6.47 5.87 4.54MINNEGAN 0.343 15.15 8.15 7.26 6.61 5.14MINNEGAN 0.428 15.09 8.16 7.26 6.63 5.19MINNEGAN 0.490 14.74 8.09 7.19 6.57 5.16MINNEGAN 0.527 21.85 11.77 10.50 9.40 7.14MINNEGAN 0.541 0.30 0.30 0.30 0.30 0.30MINNEGAN 0.565 32.85 16.14 14.30 12.83 9.76MINNEGAN 0.586 32.74 16.24 14.38 12.89 9.74MINNEGAN 0.606 33.43 16.71 14.78 13.23 9.87MINNEGAN 0.631 33.34 16.82 14.87 13.30 9.85MINNEGAN 0.658 38.48 18.92 16.74 14.94 10.91MINNEGAN 0.694 41.15 20.10 17.72 15.70 11.42MINNEGAN 0.737 39.73 19.27 16.14 13.86 8.43MINNEGAN 0.769 39.42 18.62 16.02 13.17 6.68MINNEGAN 0.791 51.41 23.41 19.42 14.93 7.24MINNEGAN 0.808 51.40 23.54 19.34 15.06 7.22MINNEGAN 0.824 51.45 23.62 19.37 15.14 7.28MINNEGAN 0.857 52.27 23.96 19.26 15.26 7.41MINNEGAN 0.883 53.98 24.18 20.16 14.79 7.57MINNEGAN 0.941 58.56 24.94 20.08 14.98 7.50MINNEGAN 1.003 60.68 24.19 19.91 14.97 7.44MINNEGAN 1.033 61.08 24.42 19.78 14.95 7.50MINNEGAN 1.061 61.08 24.49 19.69 14.91 7.51MINNEGAN 1.076 62.09 24.70 19.82 15.01 7.62MINNEGAN 1.108 62.08 24.81 19.45 14.86 7.62MINNEGAN 1.178 67.97 26.18 20.49 15.42 8.22MINNEGAN 1.246 67.96 25.89 20.50 15.36 8.15MINNEGAN 1.288 67.94 25.61 20.45 15.36 8.10MINNEGAN 1.322 71.77 25.87 20.91 15.76 8.49MINNEGAN 1.337 54.15 25.69 20.87 15.74 8.49MINNEGAN 1.361 71.76 25.67 20.84 15.73 8.49SV8507-DO-001 Rev 2 F-618/10/02
BRANCH CHAINAGE PMF 1% AEP 2% AEP 5% AEP 20% AEPMINNEGAN 1.394 71.75 25.73 20.81 15.72 8.50MINNEGAN 1.460 71.74 25.84 20.71 15.68 8.50MINNEGAN 1.529 71.73 25.97 20.50 15.56 8.49MINNEGAN 1.565 73.85 26.45 20.78 15.72 8.70MINNEGAN 1.608 73.84 26.48 20.87 15.76 8.67MINNEGAN 1.656 73.83 26.46 20.95 15.80 8.63MINNEGAN 1.715 73.81 26.17 21.00 15.82 8.65MINNEGAN 1.782 82.03 27.36 22.21 16.80 9.68MINNEGAN 1.827 82.01 27.11 22.01 16.66 9.51MINNEGAN 1.869 82.00 27.17 21.82 16.53 9.47MINNEGAN 1.931 81.98 27.14 21.52 16.38 9.41MINNEGAN 1.971 0.03 0.13 0.39 0.85 0.85MINNEGAN 1.984 85.54 27.24 21.88 16.65 9.43MINNEGAN 2.002 85.52 27.04 21.79 16.57 9.44MINNEGAN 2.023 85.51 26.93 21.75 16.52 9.44MINNEGAN 2.033 0.06 0.85 0.85 0.85 0.85MINNEGAN 2.042 85.50 26.84 21.71 16.49 9.44LAKEWEIR 0.542 31.47 15.58 13.82 12.42 9.50MELINDA 0.023 0.80 0.45 0.40 0.37 0.28MELINDA 0.073 1.86 1.08 0.96 0.88 0.68MELINDA 0.110 1.85 1.10 0.98 0.90 0.71MELINDA 0.164 5.04 2.92 2.60 2.39 1.88MELINDA 0.243 4.98 2.85 2.54 2.35 1.86MELINDA 0.278 7.00 3.82 3.36 3.06 2.45MELINDA 0.305 8.43 4.59 4.02 3.71 2.96MELINDA 0.356 8.35 4.49 4.03 3.65 2.92MELINDA 0.405 8.30 4.53 4.06 3.68 2.88MELINDA 0.447 9.45 5.27 4.77 4.48 3.59MELINDA 0.490 9.43 3.71 2.73 2.07 1.12RANCHBY1 0.023 3.27 1.84 1.64 1.52 1.20RANCHBY1 0.049 3.26 1.84 1.64 1.52 1.19RANCHBY1 0.076 4.28 2.43 2.16 1.99 1.56RANCHBY2 0.022 0.37 0.22 0.19 0.17 0.13RANCHBY2 0.048 5.19 2.78 2.46 2.27 1.82RANCHBY2 0.078 5.25 2.82 2.49 2.27 1.81RANCHBY3 0.024 0.60 0.33 0.29 0.27 0.21RANCHBY3 0.053 1.57 0.80 0.71 0.66 0.53SV8507-DO-001 Rev 2 F-718/10/02
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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
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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 and 110: BRANCH CHAINAGE PMF 1% AEP 2% AEP 5
Page 111: BRANCH CHAINAGE PMF 1% AEP 2% AEP 5
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Minnegang Creek Flood Study Report - Wollongong City Council

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