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Pre-Request Response Application 132001.210310.1
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Flood Investigation & Stormwater Quantity Management Plan BROWN
SI’IUIt’t llit
Proposed Residential Development at Doonella Stage C
-
C2: HEC RAS Results Table for 100 Year ARI (Mitigated Scenario Flows)
100 YEAR ARI RESULTS. PLAN 02 MS Revision
.
River MinCh W.S. Crit E.G. Vel Vel Vel Vel Flow Froude#
Sta QTotal EI Elev W.S. Elev Left Chnl Right Total Area XS
(m3/s) (m) (m) (m) (m) (m/s) (m/s) (m/s) (m/s) (m2)
348 1.07 13.88 14.29 14.16 14.31 0.51 0.51 2.1 10.12
308 1.07 12.03 12.32 12.32 12.4 1.2 1.2 0.9 6.09
274 1.38 10.8 12.03 11.13 12.03 0.02 0.1 0.03 0.09 14.66 24.12
252 1.38 9.97 12.03 10.15 12.03 0.03 0.03 0.03 0.03 42.62 37.07
234 1.38 9.26 12.03 9.52 12.03 0.02 0.02 0.02 0.02 75.49 48.85
220 Culvert
213 1.38 8.56 8.92 8.72 8.93 0.41 0.41 3.33 12.19
198 3.11 8.2 8.66 8.5 8.69 0.69 0.32 0.69 4.53 15.12
166 3.11 7.54 7.81 7.74 7.83 0.57 0.62 0.77 0.63 4.92 25.84
141 3.11 7.11 7.77 7.34 7.77 0.29 0.19 0.17 0.21 14.89 32.86
121 3.11 6.99 7.75 7.24 7.75 0.35 0.15 0.02 0.22 14.11 28.59
101 3.11. 7 7.73 7.33 7.74 0.48 0.2 0.32 9.85 24.47
90 3.11 6.4 7.73 6.8 7.73 0.12 0.11 0.14 0.12 26.46 37.79
75 Culvert
60 5.18 6.07 7.6 6.35 7.6 0.14 0.12 0.16 0.13 40.71 37.87
100 YEAR ARI RESULTS FOR SENSITIVITY CHECK (n=0.15).PLAN 03.MS sens
River MinCh W.S. Crit E.G. Vel Vel Vel Vel Flow Froude#
Sta QTotal EI Elev W.S. Elev Left Chnl Right Total Area XS
(m3/s) (m) (m) (m) .
(m) (m/s) (m/s) (m/s) (m/s) (m2)
348 1.07 13.88 14.38 14.16 14.38 0.35 0.35 3.03 12.16
308 1.07 12.03 12.32 12.32 12.4 1.2 1.2 0.9 6.09
274 1.38 10.8 12.03 11.13 12.03 0.02 0.1 0.03 0.09 14.68 24.13
252 1.38 9.97 12.03 10.15 12.03 0.02 0.04 0.02 0.03 42.62 37.07
234 1.38 9.26 12.03 9.52 12.03 0.01 0.02 0.D1 0.02 75.49 48.85
220 Culvert
213 1.38 8.56 9.02 8.72 9.02 0.3 0.3 4.56 13.58
198 3.11 8.2 8.7 8.5 8.72 0.62 0.18 0.62 5.06 15.64
166 3.11 7.54 7.93 7.74 7.94 0.21 0.41 0.28 0.39 8.01 27.97
141 3.11 7.11 7.84 7.32 7.84 0.14 0.2 0.09 0.18 17.44 34.95
121 3.11 6.99 7.81 7.22 7.81 0.22 0.19 0.03 0.2 15.74 29.85
101 3.11 7 7.74 7.3 7.74 0.34 0.28 0.31 10.1 24.71
90 3.11 6.4 7.73 6.8 7.73 0.07 0.13 0.08 0.12 26.46 37.79
75 Culvert
60 5.18 6.07 7.6 6.32 7.6 0.08 0.14 0.1 0.13 40.71 37.87
B09182.w-02A
[OCR of page images]
Flood Investigation & Stormwater Quantity Management Plan
BROWN
Proposed Residential Development at Doonella - Stage C Smart Water
C2: HEC RAS Results Table for 100 Year ARI (Mitigated Scenario Flows)
100 YEAR ARI RESULTS - PLAN 02 - MS Revision
River Min Ch WS. Crit E.G. Vel Vel Vel Vel Flow Froude #
Sta Q Total El Elev ws. Elev Left Chni Right Total Area xs
(m3/s) (m) (m) (m) (m) (m/s) (mis) (mis) (m/s) (m2)
348 1.07 13.88 14.29 14.16 14.31 0.51 0.51 24 10.12
308 1.07 12.03 12.32 12.32 12.4 ee 1.2 0.9 6.09
274 1.38 10.8 12.03 11.13 12.03 0.02 0.1 0.03 0.09 14.66 24.12
252 1.38 9.97 12.03 10.15 12.03 0.03 0.03 0.03 0.03 42.62 37.07
234 1.38 9.26 12.03 9.52 12.03 0.02 0.02 0.02 0.02 75.49 48.85
220 Culvert
213 1.38 8.56 8.92 8.72 8.93 0.41 0.41 3.33 12.19
198 3.11 8.2 8.66 8.5 8.69 0.69 0.32 0.69 4.53 15.12
. 166 3.11 7.54 7.81 7.74 7.83 0.57 0.62 0.77 0.63 4.92 25.84
| 144 3.11 7.11 in 7.34 7.77 0.29 0.19 0.17 0.21 14.89 32.86
121 3.11 6.99 7.75 7.24 7.75 0.35 0.15 0.02 0.22 14.14 28.59
| 101 3.11 7 7.73 7.33 7.74 0.48 0.2 0.32 9.85 24.47
90 3.11 6.4 7.73 6.8 7.73 0.12 0.11 0.14 0.12 26.46 37.79
| 75 Culvert
| 60 5.18 6.07 7.6 6.35 7.6 0.14 0.12 0.16 0.13 40.71 37.87
| 100 YEAR ARI RESULTS FOR SENSITIVITY CHECK (n=0.15) - PLAN 03 - MS sens
River Min Ch W.S. Crit E.G. Vel Vel Vel Vel Flow Froude #
Sta Q Total El Elev w.s. Elev Left Chni Right Total Area xs
(m3/s) (m) (m) (m) (m) (m/s) (mis) (mis) (m/s) (m2)
348 1.07 13.88 14.38 14.16 14.38 0.35 0.35 3.03 12.16
308 1.07 12.03 12.32 12.32 12.4 1.2 1.2. 0.9 6.09
274 1.38 10.8 12.03 11.13 12.03 0.02 0.1 0.03 0.09 14.68 24.13
252 1.38 9.97 12.03 10.15 12.03 0.02 0.04 0.02 0.03 42.62 37.07
234 1.38 9.26 12.03 9.52 12.03 0.01 0.02 0.01 0.02 75.49 48.85
220 Culvert
213 1.38 8.56 9.02 8.72 9.02 0.3 0.3 4.56 13.58
198 3.11 8.2 8.7 8.5 8.72 0.62 0.18 0.62 5.06 15.64
166 3.11 7.54 7.93 7.74 7.94 0.21 0.41 0.28 0.39 8.01 27.97
144 3.11 7.11 7.84 7.32 7.84 0.14 0.2 0.09 0.18 17.44 34.95
121 3.11 6.99 7.81 7.22 7.81 0.22 0.19 0.03 0.2 15.74 29.85
101 3.11 z 7.74 7.3 7.74 0.34 0.28 0.31 10.1 24.71
90 3.11 6.4 7.73 6.8 7.73 0.07 0.13 0.08 0.12 26.46 37.79
75 Culvert
60 5.18 6.07 7.6 6.32 7.6 0.08 0.14 0.1 0.13 40.71 37.87
B09182.W-02A
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