gta consulting page 1 - east sussex · 2011. 10. 24. · gta consulting page 2 unity house st...
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GTA Consulting Page 1Unity House St Leonard's2 Albert Drive Existing Pipe NetworkBurgess Hill RH15 9TNDate Oct 2011 Designed by SFCFile 4037 EXISTING SIM 1 I... Checked byMicro Drainage Network W.12.6
STORM SEWER DESIGN by the Modified Rational Method
Network Design Table for Storm
©1982-2011 Micro Drainage Ltd
PN Length(m)
Fall(m)
Slope(1:X)
I.Area(ha)
T.E.(mins)
BaseFlow (l/s)
k(mm)
HYDSECT
DIA(mm)
1.000 19.310 1.380 14.0 0.046 4.00 0.0 0.600 o 1501.001 43.950 4.460 9.9 0.099 0.00 0.0 0.600 o 150
2.000 27.210 0.155 175.5 0.065 4.00 0.0 0.600 o 225
3.000 13.650 0.260 52.5 0.037 4.00 0.0 0.600 o 150
1.002 26.440 2.470 10.7 0.000 0.00 0.0 0.600 o 225
4.000 28.310 0.245 115.6 0.051 4.00 0.0 0.600 o 225
5.000 34.990 0.880 39.8 0.079 4.00 0.0 0.600 o 150
1.003 36.380 2.470 14.7 0.013 0.00 0.0 0.600 o 3001.004 24.810 0.310 80.0 0.111 0.00 0.0 0.600 o 3001.005 21.110 3.150 6.7 0.000 0.00 0.0 0.600 o 300
6.000 21.400 1.150 18.6 0.310 4.00 0.0 0.600 o 2256.001 4.080 4.705 0.9 0.000 0.00 0.0 0.600 o 2256.002 48.160 0.910 52.9 0.059 0.00 0.0 0.600 o 225
7.000 35.080 1.050 33.4 0.050 4.00 0.0 0.600 o 150
Network Results Table
PN Rain(mm/hr)
T.C.(mins)
US/IL(m)
Σ I.Area(ha)
Σ BaseFlow (l/s)
Foul(l/s)
Add Flow(l/s)
Vel(m/s)
Cap(l/s)
Flow(l/s)
1.000 0.00 4.12 29.240 0.046 0.0 0.0 0.0 2.71 47.8 0.01.001 0.00 4.35 27.860 0.145 0.0 0.0 0.0 3.23 57.1 0.0
2.000 0.00 4.46 23.555 0.065 0.0 0.0 0.0 0.98 39.1 0.0
3.000 0.00 4.16 23.660 0.037 0.0 0.0 0.0 1.39 24.6 0.0
1.002 0.00 4.57 23.400 0.247 0.0 0.0 0.0 4.02 159.9 0.0
4.000 0.00 4.39 21.175 0.051 0.0 0.0 0.0 1.22 48.3 0.0
5.000 0.00 4.36 21.810 0.079 0.0 0.0 0.0 1.60 28.3 0.0
1.003 0.00 4.72 20.930 0.390 0.0 0.0 0.0 4.12 291.0 0.01.004 0.00 4.95 18.460 0.501 0.0 0.0 0.0 1.76 124.3 0.01.005 0.00 5.01 18.150 0.501 0.0 0.0 0.0 6.11 431.9 0.0
6.000 0.00 4.12 24.575 0.310 0.0 0.0 0.0 3.05 121.2 0.06.001 0.00 4.12 23.425 0.310 0.0 0.0 0.0 14.17 563.3 0.06.002 0.00 4.57 18.720 0.369 0.0 0.0 0.0 1.80 71.6 0.0
7.000 0.00 4.33 19.710 0.050 0.0 0.0 0.0 1.75 30.9 0.0
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GTA Consulting Page 2Unity House St Leonard's2 Albert Drive Existing Pipe NetworkBurgess Hill RH15 9TNDate Oct 2011 Designed by SFCFile 4037 EXISTING SIM 1 I... Checked byMicro Drainage Network W.12.6
STORM SEWER DESIGN by the Modified Rational Method
Network Design Table for Storm
©1982-2011 Micro Drainage Ltd
PN Length(m)
Fall(m)
Slope(1:X)
I.Area(ha)
T.E.(mins)
BaseFlow (l/s)
k(mm)
HYDSECT
DIA(mm)
7.001 30.230 0.850 35.6 0.000 0.00 0.0 0.600 o 150
8.000 41.580 0.690 60.3 0.106 4.00 0.0 0.600 o 150
6.003 25.420 0.318 79.9 0.000 0.00 0.0 0.600 o 2256.004 5.260 0.917 5.7 0.000 0.00 0.0 0.600 o 2256.005 36.510 0.375 97.4 0.088 0.00 0.0 0.600 o 225
9.000 8.471 1.375 6.2 0.070 4.00 0.0 0.600 o 225
6.006 58.640 1.125 52.1 0.110 0.00 0.0 0.600 o 375
1.006 45.320 1.970 23.0 0.053 0.00 0.0 0.600 o 375
10.000 9.390 0.500 18.8 0.000 4.00 0.0 0.600 o 15010.001 12.620 0.180 70.1 0.000 0.00 0.0 0.600 o 15010.002 23.950 0.280 85.5 0.091 0.00 0.0 0.600 o 15010.003 28.320 0.410 69.1 0.073 0.00 0.0 0.600 o 225
11.000 22.370 1.200 18.6 0.025 4.00 0.0 0.600 o 225
10.004 19.630 0.090 218.1 0.038 0.00 0.0 0.600 o 225
Network Results Table
PN Rain(mm/hr)
T.C.(mins)
US/IL(m)
Σ I.Area(ha)
Σ BaseFlow (l/s)
Foul(l/s)
Add Flow(l/s)
Vel(m/s)
Cap(l/s)
Flow(l/s)
7.001 0.00 4.63 18.660 0.050 0.0 0.0 0.0 1.69 29.9 0.0
8.000 0.00 4.53 18.500 0.106 0.0 0.0 0.0 1.30 22.9 0.0
6.003 0.00 4.92 17.735 0.525 0.0 0.0 0.0 1.46 58.2 0.06.004 0.00 4.94 17.417 0.525 0.0 0.0 0.0 5.50 218.7 0.06.005 0.00 5.40 16.500 0.613 0.0 0.0 0.0 1.33 52.7 0.0
9.000 0.00 4.03 17.500 0.070 0.0 0.0 0.0 5.31 211.0 0.0
6.006 0.00 5.79 16.125 0.793 0.0 0.0 0.0 2.51 277.7 0.0
1.006 0.00 5.98 15.000 1.347 0.0 0.0 0.0 3.79 418.8 0.0
10.000 0.00 4.07 15.150 0.000 0.0 0.0 0.0 2.34 41.3 0.010.001 0.00 4.24 14.650 0.000 0.0 0.0 0.0 1.20 21.2 0.010.002 0.00 4.61 14.470 0.091 0.0 0.0 0.0 1.09 19.2 0.010.003 0.00 4.91 14.190 0.164 0.0 0.0 0.0 1.58 62.7 0.0
11.000 0.00 4.12 14.980 0.025 0.0 0.0 0.0 3.04 121.1 0.0
10.004 0.00 5.28 13.780 0.227 0.0 0.0 0.0 0.88 35.0 0.0
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GTA Consulting Page 3Unity House St Leonard's2 Albert Drive Existing Pipe NetworkBurgess Hill RH15 9TNDate Oct 2011 Designed by SFCFile 4037 EXISTING SIM 1 I... Checked byMicro Drainage Network W.12.6
STORM SEWER DESIGN by the Modified Rational Method
Network Design Table for Storm
©1982-2011 Micro Drainage Ltd
PN Length(m)
Fall(m)
Slope(1:X)
I.Area(ha)
T.E.(mins)
BaseFlow (l/s)
k(mm)
HYDSECT
DIA(mm)
12.000 21.540 1.010 21.3 0.025 4.00 0.0 0.600 o 225
10.005 36.700 0.250 146.8 0.039 0.00 0.0 0.600 o 225
13.000 25.620 0.600 42.7 0.036 4.00 0.0 0.600 o 15013.001 21.520 0.450 47.8 0.047 0.00 0.0 0.600 o 225
10.006 26.640 0.410 65.0 0.030 0.00 0.0 0.600 o 300
1.007 5.770 1.280 4.5 0.000 0.00 0.0 0.600 o 300
14.000 29.040 0.040 726.0 0.100 4.00 0.0 0.600 o 22514.001 31.690 1.350 23.5 0.108 0.00 0.0 0.600 o 225
1.008 6.090 1.970 3.1 0.000 0.00 0.0 0.600 o 3751.009 18.500 3.460 5.3 0.000 0.00 0.0 0.600 o 3751.010 44.180 1.845 23.9 0.000 0.00 0.0 0.600 o 375
15.000 21.200 0.670 31.6 0.042 4.00 0.0 0.600 o 22515.001 42.720 0.660 64.7 0.085 0.00 0.0 0.600 o 225
Network Results Table
PN Rain(mm/hr)
T.C.(mins)
US/IL(m)
Σ I.Area(ha)
Σ BaseFlow (l/s)
Foul(l/s)
Add Flow(l/s)
Vel(m/s)
Cap(l/s)
Flow(l/s)
12.000 0.00 4.13 14.980 0.025 0.0 0.0 0.0 2.85 113.2 0.0
10.005 0.00 5.85 13.690 0.291 0.0 0.0 0.0 1.08 42.8 0.0
13.000 0.00 4.28 14.490 0.036 0.0 0.0 0.0 1.54 27.3 0.013.001 0.00 4.47 13.890 0.083 0.0 0.0 0.0 1.90 75.4 0.0
10.006 0.00 6.08 13.440 0.404 0.0 0.0 0.0 1.95 138.1 0.0
1.007 0.00 6.09 13.030 1.751 0.0 0.0 0.0 7.45 526.8 0.0
14.000 0.00 5.01 13.140 0.100 0.0 0.0 0.0 0.48 19.0 0.014.001 0.00 5.21 13.100 0.208 0.0 0.0 0.0 2.71 107.8 0.0
1.008 0.00 6.10 11.750 1.959 0.0 0.0 0.0 10.37 1144.9 0.01.009 0.00 6.14 9.780 1.959 0.0 0.0 0.0 7.88 870.2 0.01.010 0.00 6.33 6.320 1.959 0.0 0.0 0.0 3.72 410.4 0.0
15.000 0.00 4.15 11.240 0.042 0.0 0.0 0.0 2.33 92.8 0.015.001 0.00 4.59 10.570 0.127 0.0 0.0 0.0 1.63 64.7 0.0
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GTA Consulting Page 4Unity House St Leonard's2 Albert Drive Existing Pipe NetworkBurgess Hill RH15 9TNDate Oct 2011 Designed by SFCFile 4037 EXISTING SIM 1 I... Checked byMicro Drainage Network W.12.6
STORM SEWER DESIGN by the Modified Rational Method
Network Design Table for Storm
©1982-2011 Micro Drainage Ltd
PN Length(m)
Fall(m)
Slope(1:X)
I.Area(ha)
T.E.(mins)
BaseFlow (l/s)
k(mm)
HYDSECT
DIA(mm)
16.000 22.450 0.420 53.5 0.054 4.00 0.0 0.600 o 22516.001 38.850 0.820 47.4 0.071 0.00 0.0 0.600 o 225
15.002 37.530 4.670 8.0 0.000 0.00 0.0 0.600 o 225
17.000 87.810 0.790 111.2 0.030 4.00 0.0 0.600 o 150
15.003 80.840 0.765 105.7 0.000 0.00 0.0 0.600 o 300
1.011 28.010 0.225 124.5 0.000 0.00 0.0 0.600 o 525
18.000 57.190 0.715 80.0 0.050 4.00 0.0 0.600 o 15018.001 8.300 0.104 80.0 0.000 0.00 0.0 0.600 o 225
1.012 5.330 0.067 80.0 0.000 0.00 0.0 0.600 o 525
Network Results Table
PN Rain(mm/hr)
T.C.(mins)
US/IL(m)
Σ I.Area(ha)
Σ BaseFlow (l/s)
Foul(l/s)
Add Flow(l/s)
Vel(m/s)
Cap(l/s)
Flow(l/s)
16.000 0.00 4.21 11.150 0.054 0.0 0.0 0.0 1.79 71.3 0.016.001 0.00 4.55 10.730 0.125 0.0 0.0 0.0 1.91 75.8 0.0
15.002 0.00 4.72 9.910 0.252 0.0 0.0 0.0 4.64 184.7 0.0
17.000 0.00 5.54 6.030 0.030 0.0 0.0 0.0 0.95 16.8 0.0
15.003 0.00 6.42 5.240 0.282 0.0 0.0 0.0 1.53 108.1 0.0
1.011 0.00 6.65 4.475 2.241 0.0 0.0 0.0 2.01 434.3 0.0
18.000 0.00 4.85 4.950 0.050 0.0 0.0 0.0 1.12 19.9 0.018.001 0.00 4.94 4.235 0.050 0.0 0.0 0.0 1.46 58.2 0.0
1.012 0.00 6.69 4.125 2.291 0.0 0.0 0.0 2.51 542.5 0.0
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GTA Consulting Page 1Unity House St Leonards Academy2 Albert Drive Proposed NetworkBurgess Hill RH15 9TNDate Oct 11 Designed by SFCFile 4037 Proposed SW Drai... Checked byMicro Drainage Network W.12.6
STORM SEWER DESIGN by the Modified Rational Method
Network Design Table for Storm
©1982-2011 Micro Drainage Ltd
PN Length(m)
Fall(m)
Slope(1:X)
I.Area(ha)
T.E.(mins)
BaseFlow (l/s)
k(mm)
HYDSECT
DIA(mm)
1.000 19.310 1.380 14.0 0.046 4.00 0.0 0.600 o 1501.001 43.950 4.460 9.9 0.099 0.00 0.0 0.600 o 150
2.000 27.210 0.155 175.5 0.065 4.00 0.0 0.600 o 225
3.000 13.650 0.260 52.5 0.037 4.00 0.0 0.600 o 150
1.002 26.440 2.470 10.7 0.000 0.00 0.0 0.600 o 225
4.000 28.310 0.245 115.6 0.051 4.00 0.0 0.600 o 225
5.000 34.990 0.880 39.8 0.079 4.00 0.0 0.600 o 150
1.003 36.380 2.470 14.7 0.013 0.00 0.0 0.600 o 3001.004 24.810 0.310 80.0 0.111 0.00 0.0 0.600 o 3001.005 21.110 3.150 6.7 0.000 0.00 0.0 0.600 o 300
6.000 21.400 1.150 18.6 0.310 4.00 0.0 0.600 o 2256.001 4.080 4.705 0.9 0.000 0.00 0.0 0.600 o 2256.002 48.160 0.910 52.9 0.059 0.00 0.0 0.600 o 225
7.000 35.080 1.050 33.4 0.050 4.00 0.0 0.600 o 150
Network Results Table
PN Rain(mm/hr)
T.C.(mins)
US/IL(m)
Σ I.Area(ha)
Σ BaseFlow (l/s)
Foul(l/s)
Add Flow(l/s)
Vel(m/s)
Cap(l/s)
Flow(l/s)
1.000 0.00 4.12 29.240 0.046 0.0 0.0 0.0 2.71 47.8 0.01.001 0.00 4.35 27.860 0.145 0.0 0.0 0.0 3.23 57.1 0.0
2.000 0.00 4.46 23.555 0.065 0.0 0.0 0.0 0.98 39.1 0.0
3.000 0.00 4.16 23.660 0.037 0.0 0.0 0.0 1.39 24.6 0.0
1.002 0.00 4.57 23.400 0.247 0.0 0.0 0.0 4.02 159.9 0.0
4.000 0.00 4.39 21.175 0.051 0.0 0.0 0.0 1.22 48.3 0.0
5.000 0.00 4.36 21.810 0.079 0.0 0.0 0.0 1.60 28.3 0.0
1.003 0.00 4.72 20.930 0.390 0.0 0.0 0.0 4.12 291.0 0.01.004 0.00 4.95 18.460 0.501 0.0 0.0 0.0 1.76 124.3 0.01.005 0.00 5.01 18.150 0.501 0.0 0.0 0.0 6.11 431.9 0.0
6.000 0.00 4.12 24.575 0.310 0.0 0.0 0.0 3.05 121.2 0.06.001 0.00 4.12 23.425 0.310 0.0 0.0 0.0 14.17 563.3 0.06.002 0.00 4.57 18.720 0.369 0.0 0.0 0.0 1.80 71.6 0.0
7.000 0.00 4.33 19.710 0.050 0.0 0.0 0.0 1.75 30.9 0.0
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GTA Consulting Page 2Unity House St Leonards Academy2 Albert Drive Proposed NetworkBurgess Hill RH15 9TNDate Oct 11 Designed by SFCFile 4037 Proposed SW Drai... Checked byMicro Drainage Network W.12.6
STORM SEWER DESIGN by the Modified Rational Method
Network Design Table for Storm
©1982-2011 Micro Drainage Ltd
PN Length(m)
Fall(m)
Slope(1:X)
I.Area(ha)
T.E.(mins)
BaseFlow (l/s)
k(mm)
HYDSECT
DIA(mm)
7.001 30.230 0.850 35.6 0.000 0.00 0.0 0.600 o 150
8.000 41.580 0.690 60.3 0.106 4.00 0.0 0.600 o 150
6.003 25.420 0.318 79.9 0.000 0.00 0.0 0.600 o 2256.004 5.260 0.917 5.7 0.000 0.00 0.0 0.600 o 2256.005 36.510 0.375 97.4 0.093 0.00 0.0 0.600 o 225
9.000 8.471 1.375 6.2 0.070 4.00 0.0 0.600 o 225
6.006 58.640 1.125 52.1 0.110 0.00 0.0 0.600 o 375
1.006 45.320 1.970 23.0 0.053 0.00 0.0 0.600 o 375
10.000 9.390 0.500 18.8 0.060 4.00 0.0 0.600 o 15010.001 12.620 0.180 70.1 0.000 0.00 0.0 0.600 o 15010.002 23.950 0.280 85.5 0.091 0.00 0.0 0.600 o 15010.003 28.320 0.410 69.1 0.073 0.00 0.0 0.600 o 225
11.000 22.370 1.200 18.6 0.025 4.00 0.0 0.600 o 225
10.004 19.630 0.090 218.1 0.038 0.00 0.0 0.600 o 225
Network Results Table
PN Rain(mm/hr)
T.C.(mins)
US/IL(m)
Σ I.Area(ha)
Σ BaseFlow (l/s)
Foul(l/s)
Add Flow(l/s)
Vel(m/s)
Cap(l/s)
Flow(l/s)
7.001 0.00 4.63 18.660 0.050 0.0 0.0 0.0 1.69 29.9 0.0
8.000 0.00 4.53 18.500 0.106 0.0 0.0 0.0 1.30 22.9 0.0
6.003 0.00 4.92 17.735 0.525 0.0 0.0 0.0 1.46 58.2 0.06.004 0.00 4.94 17.417 0.525 0.0 0.0 0.0 5.50 218.7 0.06.005 0.00 5.40 16.500 0.618 0.0 0.0 0.0 1.33 52.7 0.0
9.000 0.00 4.03 17.500 0.070 0.0 0.0 0.0 5.31 211.0 0.0
6.006 0.00 5.79 16.125 0.798 0.0 0.0 0.0 2.51 277.7 0.0
1.006 0.00 5.98 15.000 1.352 0.0 0.0 0.0 3.79 418.8 0.0
10.000 0.00 4.07 15.150 0.060 0.0 0.0 0.0 2.34 41.3 0.010.001 0.00 4.24 14.650 0.060 0.0 0.0 0.0 1.20 21.2 0.010.002 0.00 4.61 14.470 0.151 0.0 0.0 0.0 1.09 19.2 0.010.003 0.00 4.91 14.190 0.224 0.0 0.0 0.0 1.58 62.7 0.0
11.000 0.00 4.12 14.980 0.025 0.0 0.0 0.0 3.04 121.1 0.0
10.004 0.00 5.28 13.780 0.287 0.0 0.0 0.0 0.88 35.0 0.0
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GTA Consulting Page 3Unity House St Leonards Academy2 Albert Drive Proposed NetworkBurgess Hill RH15 9TNDate Oct 11 Designed by SFCFile 4037 Proposed SW Drai... Checked byMicro Drainage Network W.12.6
STORM SEWER DESIGN by the Modified Rational Method
Network Design Table for Storm
©1982-2011 Micro Drainage Ltd
PN Length(m)
Fall(m)
Slope(1:X)
I.Area(ha)
T.E.(mins)
BaseFlow (l/s)
k(mm)
HYDSECT
DIA(mm)
12.000 21.540 1.010 21.3 0.025 4.00 0.0 0.600 o 225
10.005 36.700 0.250 146.8 0.039 0.00 0.0 0.600 o 225
13.000 25.620 0.600 42.7 0.036 4.00 0.0 0.600 o 15013.001 21.520 0.450 47.8 0.047 0.00 0.0 0.600 o 225
10.006 26.640 0.410 65.0 0.030 0.00 0.0 0.600 o 300
1.007 5.770 1.280 4.5 0.000 0.00 0.0 0.600 o 300
14.000 29.040 0.040 726.0 0.100 4.00 0.0 0.600 o 22514.001 31.690 1.350 23.5 0.108 0.00 0.0 0.600 o 225
1.008 6.090 1.970 3.1 0.000 0.00 0.0 0.600 o 3751.009 18.500 3.460 5.3 0.000 0.00 0.0 0.600 o 3751.010 44.180 1.845 23.9 0.000 0.00 0.0 0.600 o 375
15.000 21.200 0.670 31.6 0.042 4.00 0.0 0.600 o 22515.001 42.720 0.660 64.7 0.095 0.00 0.0 0.600 o 225
Network Results Table
PN Rain(mm/hr)
T.C.(mins)
US/IL(m)
Σ I.Area(ha)
Σ BaseFlow (l/s)
Foul(l/s)
Add Flow(l/s)
Vel(m/s)
Cap(l/s)
Flow(l/s)
12.000 0.00 4.13 14.980 0.025 0.0 0.0 0.0 2.85 113.2 0.0
10.005 0.00 5.85 13.690 0.351 0.0 0.0 0.0 1.08 42.8 0.0
13.000 0.00 4.28 14.490 0.036 0.0 0.0 0.0 1.54 27.3 0.013.001 0.00 4.47 13.890 0.083 0.0 0.0 0.0 1.90 75.4 0.0
10.006 0.00 6.08 13.440 0.464 0.0 0.0 0.0 1.95 138.1 0.0
1.007 0.00 6.09 13.030 1.816 0.0 0.0 0.0 7.45 526.8 0.0
14.000 0.00 5.01 13.140 0.100 0.0 0.0 0.0 0.48 19.0 0.014.001 0.00 5.21 13.100 0.208 0.0 0.0 0.0 2.71 107.8 0.0
1.008 0.00 6.10 11.750 2.024 0.0 0.0 0.0 10.37 1144.9 0.01.009 0.00 6.14 9.780 2.024 0.0 0.0 0.0 7.88 870.2 0.01.010 0.00 6.33 6.320 2.024 0.0 0.0 0.0 3.72 410.4 0.0
15.000 0.00 4.15 11.240 0.042 0.0 0.0 0.0 2.33 92.8 0.015.001 0.00 4.59 10.570 0.137 0.0 0.0 0.0 1.63 64.7 0.0
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GTA Consulting Page 4Unity House St Leonards Academy2 Albert Drive Proposed NetworkBurgess Hill RH15 9TNDate Oct 11 Designed by SFCFile 4037 Proposed SW Drai... Checked byMicro Drainage Network W.12.6
STORM SEWER DESIGN by the Modified Rational Method
Network Design Table for Storm
©1982-2011 Micro Drainage Ltd
PN Length(m)
Fall(m)
Slope(1:X)
I.Area(ha)
T.E.(mins)
BaseFlow (l/s)
k(mm)
HYDSECT
DIA(mm)
16.000 22.450 0.420 53.5 0.054 4.00 0.0 0.600 o 22516.001 38.850 0.820 47.4 0.079 0.00 0.0 0.600 o 225
15.002 37.530 4.670 8.0 0.000 0.00 0.0 0.600 o 225
17.000 87.810 0.790 111.2 0.030 4.00 0.0 0.600 o 150
15.003 80.840 0.765 105.7 0.000 0.00 0.0 0.600 o 300
1.011 28.010 0.225 124.5 0.000 0.00 0.0 0.600 o 525
18.000 57.190 0.715 80.0 0.050 4.00 0.0 0.600 o 15018.001 8.300 0.104 80.0 0.000 0.00 0.0 0.600 o 225
1.012 5.330 0.067 80.0 0.000 0.00 0.0 0.600 o 525
Network Results Table
PN Rain(mm/hr)
T.C.(mins)
US/IL(m)
Σ I.Area(ha)
Σ BaseFlow (l/s)
Foul(l/s)
Add Flow(l/s)
Vel(m/s)
Cap(l/s)
Flow(l/s)
16.000 0.00 4.21 11.150 0.054 0.0 0.0 0.0 1.79 71.3 0.016.001 0.00 4.55 10.730 0.133 0.0 0.0 0.0 1.91 75.8 0.0
15.002 0.00 4.72 9.910 0.270 0.0 0.0 0.0 4.64 184.7 0.0
17.000 0.00 5.54 6.030 0.030 0.0 0.0 0.0 0.95 16.8 0.0
15.003 0.00 6.42 5.240 0.300 0.0 0.0 0.0 1.53 108.1 0.0
1.011 0.00 6.65 4.475 2.324 0.0 0.0 0.0 2.01 434.3 0.0
18.000 0.00 4.85 4.950 0.050 0.0 0.0 0.0 1.12 19.9 0.018.001 0.00 4.94 4.235 0.050 0.0 0.0 0.0 1.46 58.2 0.0
1.012 0.00 6.69 4.125 2.374 0.0 0.0 0.0 2.51 542.5 0.0
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GTA Consulting Page 1Unity House St Leonards2 Albert Drive Existing 1 in 100 yrBurgess Hill RH15 9TNDate Oct 2011 Designed by SFCFile 4037 EXISTING SIM 1 I... Checked byMicro Drainage Network W.12.6
STORM SEWER DESIGN by the Modified Rational Method
Design Criteria for Storm
©1982-2011 Micro Drainage Ltd
Pipe Sizes STANDARD Manhole Sizes STANDARD
FSR Rainfall Model - England and WalesReturn Period (years) 1 Add Flow / Climate Change (%) 0
M5-60 (mm) 20.000 Minimum Backdrop Height (m) 5.000Ratio R 0.350 Maximum Backdrop Height (m) 5.000
Maximum Rainfall (mm/hr) 0 Min Design Depth for Optimisation (m) 1.200Foul Sewage (l/s/ha) 0.00 Min Vel for Auto Design only (m/s) 1.00
Volumetric Runoff Coeff. 0.750 Min Slope for Optimisation (1:X) 500PIMP (%) 100
Designed with Level Soffits
Time Area Diagram for Storm
Time(mins)
Area(ha)
Time(mins)
Area(ha)
0-4 1.325 4-8 0.966
Total Area Contributing (ha) = 2.291
Total Pipe Volume (m³) = 72.189
Simulation Criteria for Storm
Volumetric Runoff Coeff 0.750 Foul Sewage per hectare (l/s) 0.000Areal Reduction Factor 1.000 Additional Flow - % of Total Flow 0.000
Hot Start (mins) 0 MADD Factor * 10m³/ha Storage 2.000Hot Start Level (mm) 0 Run Time (mins) 60
Manhole Headloss Coeff (Global) 0.500 Output Interval (mins) 1
Number of Input Hydrographs 0 Number of Storage Structures 0Number of Online Controls 0 Number of Time/Area Diagrams 0
Number of Offline Controls 0
Synthetic Rainfall Details
Rainfall Model FSR Profile Type SummerReturn Period (years) 100 Cv (Summer) 0.750
Region England and Wales Cv (Winter) 0.840M5-60 (mm) 20.000 Storm Duration (mins) 30
Ratio R 0.350
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GTA Consulting Page 2Unity House St Leonards2 Albert Drive Existing 1 in 100 yrBurgess Hill RH15 9TNDate Oct 2011 Designed by SFCFile 4037 EXISTING SIM 1 I... Checked byMicro Drainage Network W.12.6
Summary of Results for 30 minute 100 year Summer (Storm)
©1982-2011 Micro Drainage Ltd
Margin for Flood Risk Warning (mm) 300.0 DVD Status OFFAnalysis Timestep Fine Inertia Status OFF
DTS Status ON
PNUS/MHName
WaterLevel(m)
SurchargedDepth(m)
FloodedVolume(m³)
Flow /Cap.
Overflow(l/s)
PipeFlow(l/s) Status
1.000 1 29.307 -0.083 0.000 0.41 0.0 18.5 OK1.001 2 28.057 0.047 0.000 1.01 0.0 55.7 SURCHARGED2.000 3 23.698 -0.082 0.000 0.70 0.0 25.6 OK3.000 4 23.750 -0.060 0.000 0.66 0.0 14.8 OK1.002 5 23.533 -0.092 0.000 0.65 0.0 96.1 OK4.000 6 21.282 -0.118 0.000 0.45 0.0 20.1 OK5.000 7 22.092 0.132 0.000 1.06 0.0 28.8 SURCHARGED1.003 8 21.091 -0.139 0.000 0.56 0.0 150.1 OK1.004 9 19.367 0.607 0.000 1.72 0.0 190.8 SURCHARGED1.005 10 18.302 -0.148 0.000 0.50 0.0 189.9 OK6.000 11 24.957 0.157 0.000 1.06 0.0 117.0 SURCHARGED6.001 12 23.806 0.156 0.000 0.37 0.0 113.1 SURCHARGED6.002 13 23.240 4.295 0.000 1.81 0.0 124.4 FLOOD RISK7.000 14 20.283 0.423 0.000 0.59 0.0 17.7 SURCHARGED7.001 15 19.966 1.156 6.435 1.10 0.0 31.5 FLOOD8.000 16 19.862 1.212 12.302 1.60 0.0 35.6 FLOOD6.003 17 20.202 2.242 0.000 1.89 0.0 101.6 FLOOD RISK6.004 18 19.222 1.580 0.000 0.72 0.0 96.6 SURCHARGED6.005 19 18.789 2.064 0.000 2.40 0.0 119.4 SURCHARGED9.000 20 17.562 -0.163 0.000 0.17 0.0 28.1 OK6.006 21 16.737 0.237 0.000 0.68 0.0 175.6 SURCHARGED1.006 22 16.311 0.936 0.000 0.89 0.0 343.3 SURCHARGED
10.000 23 15.571 0.271 0.000 0.11 0.0 4.2 SURCHARGED10.001 24 15.571 0.771 1.350 0.55 0.0 10.7 FLOOD10.002 25 15.631 1.011 0.510 1.39 0.0 25.4 FLOOD10.003 26 15.554 1.139 0.000 0.66 0.0 38.3 FLOOD RISK11.000 27 15.485 0.280 0.000 0.09 0.0 10.0 FLOOD RISK10.004 28 15.474 1.469 0.000 1.66 0.0 52.7 FLOOD RISK12.000 29 15.348 0.143 0.000 0.10 0.0 10.0 FLOOD RISK10.005 30 15.338 1.423 0.000 1.67 0.0 67.6 SURCHARGED13.000 31 15.003 0.363 0.000 0.55 0.0 14.2 SURCHARGED13.001 32 14.962 0.847 0.000 0.47 0.0 32.0 SURCHARGED10.006 33 14.926 1.186 0.000 0.88 0.0 109.7 SURCHARGED1.007 34 14.779 1.449 0.000 1.46 0.0 413.7 SURCHARGED
14.000 35 13.519 0.154 0.000 2.44 0.0 39.0 SURCHARGED14.001 36 13.255 -0.070 0.000 0.80 0.0 80.9 OK1.008 37 12.020 -0.105 0.000 0.86 0.0 474.0 OK1.009 38 10.069 -0.086 0.000 0.66 0.0 472.8 OK1.010 39 8.596 1.901 0.000 1.25 0.0 471.8 SURCHARGED
15.000 40 11.308 -0.157 0.000 0.20 0.0 16.8 OK15.001 41 10.728 -0.067 0.000 0.81 0.0 50.1 OK16.000 42 11.240 -0.135 0.000 0.33 0.0 21.6 OK16.001 43 10.870 -0.085 0.000 0.69 0.0 49.3 OK15.002 44 10.034 -0.101 0.000 0.57 0.0 100.2 OK17.000 45 6.477 0.297 0.000 0.58 0.0 9.7 SURCHARGED15.003 46 6.268 0.728 0.000 0.94 0.0 97.6 SURCHARGED1.011 47 5.677 0.677 0.000 1.56 0.0 562.3 SURCHARGED
18.000 48 5.541 0.441 0.000 0.80 0.0 15.6 SURCHARGED
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GTA Consulting Page 3Unity House St Leonards2 Albert Drive Existing 1 in 100 yrBurgess Hill RH15 9TNDate Oct 2011 Designed by SFCFile 4037 EXISTING SIM 1 I... Checked byMicro Drainage Network W.12.6
Summary of Results for 30 minute 100 year Summer (Storm)
©1982-2011 Micro Drainage Ltd
18.001 49 5.142 0.682 0.000 0.32 0.0 14.5 SURCHARGED1.012 50 5.126 0.476 0.000 2.31 0.0 575.4 SURCHARGED
PNUS/MHName
WaterLevel(m)
SurchargedDepth(m)
FloodedVolume(m³)
Flow /Cap.
Overflow(l/s)
PipeFlow(l/s) Status
-
GTA Consulting Page 1Unity House St Leonard's2 Albert Drive ExistingBurgess Hill RH15 9TN 1 in 100 yr +20%Date Oct 2011 Designed by SFCFile 4037 EXISTING SIM 1 I... Checked byMicro Drainage Network W.12.6
STORM SEWER DESIGN by the Modified Rational Method
Design Criteria for Storm
©1982-2011 Micro Drainage Ltd
Pipe Sizes STANDARD Manhole Sizes STANDARD
FSR Rainfall Model - England and WalesReturn Period (years) 1 Add Flow / Climate Change (%) 0
M5-60 (mm) 20.000 Minimum Backdrop Height (m) 5.000Ratio R 0.350 Maximum Backdrop Height (m) 5.000
Maximum Rainfall (mm/hr) 0 Min Design Depth for Optimisation (m) 1.200Foul Sewage (l/s/ha) 0.00 Min Vel for Auto Design only (m/s) 1.00
Volumetric Runoff Coeff. 0.750 Min Slope for Optimisation (1:X) 500PIMP (%) 100
Designed with Level Soffits
Time Area Diagram for Storm
Time(mins)
Area(ha)
Time(mins)
Area(ha)
0-4 1.325 4-8 0.966
Total Area Contributing (ha) = 2.291
Total Pipe Volume (m³) = 72.189
Simulation Criteria for Storm
Volumetric Runoff Coeff 0.750 Foul Sewage per hectare (l/s) 0.000Areal Reduction Factor 1.000 Additional Flow - % of Total Flow 20.000
Hot Start (mins) 0 MADD Factor * 10m³/ha Storage 2.000Hot Start Level (mm) 0 Run Time (mins) 60
Manhole Headloss Coeff (Global) 0.500 Output Interval (mins) 1
Number of Input Hydrographs 0 Number of Storage Structures 0Number of Online Controls 0 Number of Time/Area Diagrams 0
Number of Offline Controls 0
Synthetic Rainfall Details
Rainfall Model FSR Profile Type SummerReturn Period (years) 100 Cv (Summer) 0.750
Region England and Wales Cv (Winter) 0.840M5-60 (mm) 20.000 Storm Duration (mins) 30
Ratio R 0.350
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GTA Consulting Page 2Unity House St Leonard's2 Albert Drive ExistingBurgess Hill RH15 9TN 1 in 100 yr +20%Date Oct 2011 Designed by SFCFile 4037 EXISTING SIM 1 I... Checked byMicro Drainage Network W.12.6
Summary of Results for 30 minute 100 year Summer (Storm)
©1982-2011 Micro Drainage Ltd
Margin for Flood Risk Warning (mm) 300.0 DVD Status OFFAnalysis Timestep Fine Inertia Status OFF
DTS Status ON
PNUS/MHName
WaterLevel(m)
SurchargedDepth(m)
FloodedVolume(m³)
Flow /Cap.
Overflow(l/s)
PipeFlow(l/s) Status
1.000 1 29.315 -0.075 0.000 0.49 0.0 22.2 OK1.001 2 28.621 0.611 0.000 1.06 0.0 59.0 SURCHARGED2.000 3 23.718 -0.062 0.000 0.85 0.0 30.7 OK3.000 4 23.762 -0.048 0.000 0.79 0.0 17.8 OK1.002 5 23.542 -0.083 0.000 0.72 0.0 106.6 OK4.000 6 21.294 -0.106 0.000 0.54 0.0 24.1 OK5.000 7 22.369 0.409 0.000 1.19 0.0 32.5 SURCHARGED1.003 8 21.103 -0.127 0.000 0.63 0.0 168.3 OK1.004 9 19.640 0.880 0.000 1.94 0.0 215.5 SURCHARGED1.005 10 18.314 -0.136 0.000 0.57 0.0 216.1 OK6.000 11 25.530 0.730 0.000 1.13 0.0 124.4 SURCHARGED6.001 12 24.210 0.560 0.000 0.38 0.0 117.3 SURCHARGED6.002 13 23.511 4.566 1.208 1.87 0.0 128.6 FLOOD7.000 14 20.491 0.631 0.000 0.69 0.0 20.5 SURCHARGED7.001 15 19.973 1.163 13.708 1.21 0.0 34.7 FLOOD8.000 16 19.871 1.221 21.406 1.66 0.0 36.9 FLOOD6.003 17 20.312 2.352 2.539 1.90 0.0 101.9 FLOOD6.004 18 19.674 2.032 0.000 0.76 0.0 102.7 FLOOD RISK6.005 19 19.387 2.662 0.000 2.39 0.0 118.8 FLOOD RISK9.000 20 17.716 -0.009 0.000 0.20 0.0 33.8 OK6.006 21 17.697 1.197 0.000 0.70 0.0 182.7 SURCHARGED1.006 22 17.296 1.921 0.000 0.99 0.0 381.5 FLOOD RISK
10.000 23 15.575 0.275 0.000 0.18 0.0 6.6 SURCHARGED10.001 24 15.575 0.775 4.677 1.34 0.0 25.8 FLOOD10.002 25 15.636 1.016 6.353 1.73 0.0 31.6 FLOOD10.003 26 15.691 1.276 0.530 0.72 0.0 41.7 FLOOD11.000 27 15.603 0.398 3.280 0.27 0.0 30.2 FLOOD10.004 28 15.655 1.650 0.000 1.79 0.0 56.7 FLOOD RISK12.000 29 15.601 0.396 1.036 0.19 0.0 19.2 FLOOD10.005 30 15.621 1.706 0.000 1.84 0.0 74.5 FLOOD RISK13.000 31 15.610 0.970 0.000 0.59 0.0 15.4 FLOOD RISK13.001 32 15.536 1.421 0.000 0.43 0.0 29.3 FLOOD RISK10.006 33 15.490 1.750 0.243 0.95 0.0 117.9 FLOOD1.007 34 15.395 2.065 0.000 1.53 0.0 433.4 SURCHARGED
14.000 35 13.606 0.241 0.000 2.91 0.0 46.6 SURCHARGED14.001 36 13.277 -0.048 0.000 0.96 0.0 96.7 OK1.008 37 12.427 0.302 0.000 0.92 0.0 504.6 SURCHARGED1.009 38 10.807 0.652 0.000 0.69 0.0 500.5 SURCHARGED1.010 39 9.139 2.444 0.000 1.33 0.0 501.1 SURCHARGED
15.000 40 11.315 -0.150 0.000 0.24 0.0 20.2 OK15.001 41 10.753 -0.042 0.000 0.98 0.0 60.1 OK16.000 42 11.249 -0.126 0.000 0.40 0.0 26.0 OK16.001 43 10.890 -0.065 0.000 0.82 0.0 59.1 OK15.002 44 10.049 -0.086 0.000 0.69 0.0 120.2 OK17.000 45 7.056 0.876 0.000 0.68 0.0 11.3 SURCHARGED15.003 46 6.794 1.254 0.000 1.13 0.0 117.8 FLOOD RISK1.011 47 5.862 0.862 0.000 1.69 0.0 606.0 SURCHARGED
18.000 48 5.840 0.740 0.000 0.93 0.0 18.1 SURCHARGED
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GTA Consulting Page 3Unity House St Leonard's2 Albert Drive ExistingBurgess Hill RH15 9TN 1 in 100 yr +20%Date Oct 2011 Designed by SFCFile 4037 EXISTING SIM 1 I... Checked byMicro Drainage Network W.12.6
Summary of Results for 30 minute 100 year Summer (Storm)
©1982-2011 Micro Drainage Ltd
18.001 49 5.241 0.781 0.000 0.39 0.0 17.6 SURCHARGED1.012 50 5.221 0.571 0.000 2.50 0.0 622.3 SURCHARGED
PNUS/MHName
WaterLevel(m)
SurchargedDepth(m)
FloodedVolume(m³)
Flow /Cap.
Overflow(l/s)
PipeFlow(l/s) Status
-
GTA Consulting Page 1Unity House St Leonards2 Albert Drive Proposed NetworkBurgess Hill RH15 9TN 1 in 100 yrDate Oct 2011 Designed by SFCFile 4037 PROPOSED SIM 1 I... Checked byMicro Drainage Network W.12.6
STORM SEWER DESIGN by the Modified Rational Method
Design Criteria for Storm
©1982-2011 Micro Drainage Ltd
Pipe Sizes STANDARD Manhole Sizes STANDARD
FSR Rainfall Model - England and WalesReturn Period (years) 1 Add Flow / Climate Change (%) 0
M5-60 (mm) 20.000 Minimum Backdrop Height (m) 5.000Ratio R 0.350 Maximum Backdrop Height (m) 5.000
Maximum Rainfall (mm/hr) 0 Min Design Depth for Optimisation (m) 1.200Foul Sewage (l/s/ha) 0.00 Min Vel for Auto Design only (m/s) 1.00
Volumetric Runoff Coeff. 0.750 Min Slope for Optimisation (1:X) 500PIMP (%) 100
Designed with Level Soffits
Time Area Diagram for Storm
Time(mins)
Area(ha)
Time(mins)
Area(ha)
0-4 1.360 4-8 1.014
Total Area Contributing (ha) = 2.374
Total Pipe Volume (m³) = 72.189
Simulation Criteria for Storm
Volumetric Runoff Coeff 0.750 Foul Sewage per hectare (l/s) 0.000Areal Reduction Factor 1.000 Additional Flow - % of Total Flow 0.000
Hot Start (mins) 0 MADD Factor * 10m³/ha Storage 2.000Hot Start Level (mm) 0 Run Time (mins) 60
Manhole Headloss Coeff (Global) 0.500 Output Interval (mins) 1
Number of Input Hydrographs 0 Number of Storage Structures 1Number of Online Controls 0 Number of Time/Area Diagrams 0
Number of Offline Controls 0
Synthetic Rainfall Details
Rainfall Model FSR Profile Type SummerReturn Period (years) 100 Cv (Summer) 0.750
Region England and Wales Cv (Winter) 0.840M5-60 (mm) 20.000 Storm Duration (mins) 30
Ratio R 0.350
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GTA Consulting Page 2Unity House St Leonards2 Albert Drive Proposed NetworkBurgess Hill RH15 9TN 1 in 100 yrDate Oct 2011 Designed by SFCFile 4037 PROPOSED SIM 1 I... Checked byMicro Drainage Network W.12.6
Storage Structures for Storm
©1982-2011 Micro Drainage Ltd
Tank or Pond Manhole: 24, DS/PN: 10.001
Invert Level (m) 14.650
Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²)0.000 14.0 1.400 0.0 2.800 0.0 4.200 0.00.200 14.0 1.600 0.0 3.000 0.0 4.400 0.00.400 14.0 1.800 0.0 3.200 0.0 4.600 0.00.600 14.0 2.000 0.0 3.400 0.0 4.800 0.00.800 14.0 2.200 0.0 3.600 0.0 5.000 0.01.000 14.0 2.400 0.0 3.800 0.01.200 14.0 2.600 0.0 4.000 0.0
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GTA Consulting Page 3Unity House St Leonards2 Albert Drive Proposed NetworkBurgess Hill RH15 9TN 1 in 100 yrDate Oct 2011 Designed by SFCFile 4037 PROPOSED SIM 1 I... Checked byMicro Drainage Network W.12.6
Summary of Results for 30 minute 100 year Summer (Storm)
©1982-2011 Micro Drainage Ltd
Margin for Flood Risk Warning (mm) 300.0 DVD Status OFFAnalysis Timestep Fine Inertia Status OFF
DTS Status ON
PNUS/MHName
WaterLevel(m)
SurchargedDepth(m)
FloodedVolume(m³)
Flow /Cap.
Overflow(l/s)
PipeFlow(l/s) Status
1.000 1 29.307 -0.083 0.000 0.41 0.0 18.5 OK1.001 2 28.057 0.047 0.000 1.01 0.0 55.7 SURCHARGED2.000 3 23.698 -0.082 0.000 0.70 0.0 25.6 OK3.000 4 23.750 -0.060 0.000 0.66 0.0 14.8 OK1.002 5 23.533 -0.092 0.000 0.65 0.0 96.1 OK4.000 6 21.282 -0.118 0.000 0.45 0.0 20.1 OK5.000 7 22.092 0.132 0.000 1.06 0.0 28.8 SURCHARGED1.003 8 21.091 -0.139 0.000 0.56 0.0 150.1 OK1.004 9 19.367 0.607 0.000 1.72 0.0 190.8 SURCHARGED1.005 10 18.302 -0.148 0.000 0.50 0.0 189.9 OK6.000 11 24.957 0.157 0.000 1.06 0.0 117.0 SURCHARGED6.001 12 23.810 0.160 0.000 0.37 0.0 113.1 SURCHARGED6.002 13 23.246 4.301 0.000 1.81 0.0 124.2 FLOOD RISK7.000 14 20.286 0.426 0.000 0.59 0.0 17.7 SURCHARGED7.001 15 19.967 1.157 6.605 1.10 0.0 31.7 FLOOD8.000 16 19.862 1.212 12.452 1.59 0.0 35.5 FLOOD6.003 17 20.216 2.256 0.000 1.87 0.0 100.7 FLOOD RISK6.004 18 19.255 1.613 0.000 0.71 0.0 96.3 SURCHARGED6.005 19 18.830 2.105 0.000 2.41 0.0 120.1 SURCHARGED9.000 20 17.562 -0.163 0.000 0.17 0.0 28.1 OK6.006 21 16.760 0.260 0.000 0.68 0.0 175.7 SURCHARGED1.006 22 16.331 0.956 0.000 0.90 0.0 344.3 SURCHARGED
10.000 23 15.569 0.269 0.000 0.65 0.0 23.8 SURCHARGED10.001 24 15.546 0.746 0.000 1.10 0.0 21.3 FLOOD RISK10.002 25 15.542 0.922 0.000 1.60 0.0 29.1 FLOOD RISK10.003 26 15.484 1.069 0.000 0.66 0.0 38.5 FLOOD RISK11.000 27 15.433 0.228 0.000 0.09 0.0 9.8 FLOOD RISK10.004 28 15.422 1.417 0.000 1.63 0.0 51.8 FLOOD RISK12.000 29 15.318 0.113 0.000 0.10 0.0 10.0 FLOOD RISK10.005 30 15.307 1.392 0.000 1.64 0.0 66.4 SURCHARGED13.000 31 15.011 0.371 0.000 0.54 0.0 14.1 SURCHARGED13.001 32 14.967 0.852 0.000 0.46 0.0 31.8 SURCHARGED10.006 33 14.931 1.191 0.000 0.88 0.0 108.7 SURCHARGED1.007 34 14.788 1.458 0.000 1.46 0.0 414.2 SURCHARGED
14.000 35 13.519 0.154 0.000 2.44 0.0 39.0 SURCHARGED14.001 36 13.255 -0.070 0.000 0.80 0.0 80.9 OK1.008 37 12.021 -0.104 0.000 0.86 0.0 475.2 OK1.009 38 10.109 -0.046 0.000 0.66 0.0 473.4 OK1.010 39 8.632 1.937 0.000 1.26 0.0 472.9 SURCHARGED
15.000 40 11.308 -0.157 0.000 0.20 0.0 16.8 OK15.001 41 10.737 -0.058 0.000 0.88 0.0 54.0 OK16.000 42 11.240 -0.135 0.000 0.33 0.0 21.6 OK16.001 43 10.876 -0.079 0.000 0.73 0.0 52.4 OK15.002 44 10.039 -0.096 0.000 0.61 0.0 107.3 OK17.000 45 6.600 0.420 0.000 0.57 0.0 9.5 SURCHARGED15.003 46 6.395 0.855 0.000 1.01 0.0 104.7 SURCHARGED1.011 47 5.703 0.703 0.000 1.58 0.0 569.6 SURCHARGED
18.000 48 5.554 0.454 0.000 0.80 0.0 15.5 SURCHARGED
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GTA Consulting Page 4Unity House St Leonards2 Albert Drive Proposed NetworkBurgess Hill RH15 9TN 1 in 100 yrDate Oct 2011 Designed by SFCFile 4037 PROPOSED SIM 1 I... Checked byMicro Drainage Network W.12.6
Summary of Results for 30 minute 100 year Summer (Storm)
©1982-2011 Micro Drainage Ltd
18.001 49 5.155 0.695 0.000 0.32 0.0 14.5 SURCHARGED1.012 50 5.139 0.489 0.000 2.34 0.0 582.2 SURCHARGED
PNUS/MHName
WaterLevel(m)
SurchargedDepth(m)
FloodedVolume(m³)
Flow /Cap.
Overflow(l/s)
PipeFlow(l/s) Status
-
GTA Consulting Page 1Unity House St Leonards2 Albert Drive Proposed NetworkBurgess Hill RH15 9TN 1 in 100 yr +20%Date Oct 2011 Designed by SFCFile 4037 PROPOSED SIM 1 I... Checked byMicro Drainage Network W.12.6
STORM SEWER DESIGN by the Modified Rational Method
Design Criteria for Storm
©1982-2011 Micro Drainage Ltd
Pipe Sizes STANDARD Manhole Sizes STANDARD
FSR Rainfall Model - England and WalesReturn Period (years) 1 Add Flow / Climate Change (%) 0
M5-60 (mm) 20.000 Minimum Backdrop Height (m) 5.000Ratio R 0.350 Maximum Backdrop Height (m) 5.000
Maximum Rainfall (mm/hr) 0 Min Design Depth for Optimisation (m) 1.200Foul Sewage (l/s/ha) 0.00 Min Vel for Auto Design only (m/s) 1.00
Volumetric Runoff Coeff. 0.750 Min Slope for Optimisation (1:X) 500PIMP (%) 100
Designed with Level Soffits
Time Area Diagram for Storm
Time(mins)
Area(ha)
Time(mins)
Area(ha)
0-4 1.360 4-8 1.014
Total Area Contributing (ha) = 2.374
Total Pipe Volume (m³) = 72.189
Simulation Criteria for Storm
Volumetric Runoff Coeff 0.750 Foul Sewage per hectare (l/s) 0.000Areal Reduction Factor 1.000 Additional Flow - % of Total Flow 20.000
Hot Start (mins) 0 MADD Factor * 10m³/ha Storage 2.000Hot Start Level (mm) 0 Run Time (mins) 60
Manhole Headloss Coeff (Global) 0.500 Output Interval (mins) 1
Number of Input Hydrographs 0 Number of Storage Structures 1Number of Online Controls 0 Number of Time/Area Diagrams 0
Number of Offline Controls 0
Synthetic Rainfall Details
Rainfall Model FSR Profile Type SummerReturn Period (years) 100 Cv (Summer) 0.750
Region England and Wales Cv (Winter) 0.840M5-60 (mm) 20.000 Storm Duration (mins) 30
Ratio R 0.350
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GTA Consulting Page 2Unity House St Leonards2 Albert Drive Proposed NetworkBurgess Hill RH15 9TN 1 in 100 yr +20%Date Oct 2011 Designed by SFCFile 4037 PROPOSED SIM 1 I... Checked byMicro Drainage Network W.12.6
Storage Structures for Storm
©1982-2011 Micro Drainage Ltd
Tank or Pond Manhole: 24, DS/PN: 10.001
Invert Level (m) 14.650
Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²)0.000 14.0 1.400 0.0 2.800 0.0 4.200 0.00.200 14.0 1.600 0.0 3.000 0.0 4.400 0.00.400 14.0 1.800 0.0 3.200 0.0 4.600 0.00.600 14.0 2.000 0.0 3.400 0.0 4.800 0.00.800 14.0 2.200 0.0 3.600 0.0 5.000 0.01.000 14.0 2.400 0.0 3.800 0.01.200 14.0 2.600 0.0 4.000 0.0
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GTA Consulting Page 3Unity House St Leonards2 Albert Drive Proposed NetworkBurgess Hill RH15 9TN 1 in 100 yr +20%Date Oct 2011 Designed by SFCFile 4037 PROPOSED SIM 1 I... Checked byMicro Drainage Network W.12.6
Summary of Results for 30 minute 100 year Summer (Storm)
©1982-2011 Micro Drainage Ltd
Margin for Flood Risk Warning (mm) 300.0 DVD Status OFFAnalysis Timestep Fine Inertia Status OFF
DTS Status ON
PNUS/MHName
WaterLevel(m)
SurchargedDepth(m)
FloodedVolume(m³)
Flow /Cap.
Overflow(l/s)
PipeFlow(l/s) Status
1.000 1 29.315 -0.075 0.000 0.49 0.0 22.2 OK1.001 2 28.621 0.611 0.000 1.06 0.0 59.0 SURCHARGED2.000 3 23.718 -0.062 0.000 0.85 0.0 30.7 OK3.000 4 23.762 -0.048 0.000 0.79 0.0 17.8 OK1.002 5 23.542 -0.083 0.000 0.72 0.0 106.6 OK4.000 6 21.294 -0.106 0.000 0.54 0.0 24.1 OK5.000 7 22.369 0.409 0.000 1.19 0.0 32.5 SURCHARGED1.003 8 21.103 -0.127 0.000 0.63 0.0 168.3 OK1.004 9 19.640 0.880 0.000 1.94 0.0 215.5 SURCHARGED1.005 10 18.314 -0.136 0.000 0.57 0.0 216.1 OK6.000 11 25.532 0.732 0.000 1.13 0.0 124.4 SURCHARGED6.001 12 24.210 0.560 0.000 0.38 0.0 117.3 SURCHARGED6.002 13 23.511 4.566 1.227 1.87 0.0 128.6 FLOOD7.000 14 20.493 0.633 0.000 0.69 0.0 20.6 SURCHARGED7.001 15 19.973 1.163 13.922 1.21 0.0 34.7 FLOOD8.000 16 19.871 1.221 21.643 1.66 0.0 36.9 FLOOD6.003 17 20.313 2.353 2.879 1.88 0.0 101.1 FLOOD6.004 18 19.701 2.059 0.000 0.77 0.0 103.8 FLOOD RISK6.005 19 19.426 2.701 0.000 2.40 0.0 119.2 FLOOD RISK9.000 20 17.746 0.021 0.000 0.20 0.0 33.8 SURCHARGED6.006 21 17.727 1.227 0.000 0.70 0.0 182.9 SURCHARGED1.006 22 17.324 1.949 0.000 0.99 0.0 382.0 FLOOD RISK
10.000 23 15.726 0.426 0.000 0.71 0.0 26.0 SURCHARGED10.001 24 15.676 0.876 1.497 1.35 0.0 26.0 FLOOD10.002 25 15.637 1.017 7.535 2.01 0.0 36.6 FLOOD10.003 26 15.691 1.276 0.546 0.73 0.0 42.4 FLOOD11.000 27 15.603 0.398 3.317 0.27 0.0 30.1 FLOOD10.004 28 15.658 1.653 0.000 1.80 0.0 56.9 FLOOD RISK12.000 29 15.601 0.396 1.131 0.18 0.0 18.8 FLOOD10.005 30 15.626 1.711 0.000 1.84 0.0 74.6 FLOOD RISK13.000 31 15.613 0.973 0.000 0.59 0.0 15.4 FLOOD RISK13.001 32 15.537 1.422 0.000 0.42 0.0 29.0 FLOOD RISK10.006 33 15.490 1.750 0.435 0.95 0.0 118.0 FLOOD1.007 34 15.402 2.072 0.000 1.53 0.0 432.7 SURCHARGED
14.000 35 13.606 0.241 0.000 2.91 0.0 46.6 SURCHARGED14.001 36 13.277 -0.048 0.000 0.96 0.0 96.7 OK1.008 37 12.445 0.320 0.000 0.92 0.0 504.4 SURCHARGED1.009 38 10.832 0.677 0.000 0.69 0.0 500.5 SURCHARGED1.010 39 9.169 2.474 0.000 1.33 0.0 500.6 SURCHARGED
15.000 40 11.315 -0.150 0.000 0.24 0.0 20.2 OK15.001 41 10.832 0.037 0.000 1.03 0.0 63.4 SURCHARGED16.000 42 11.249 -0.126 0.000 0.40 0.0 26.0 OK16.001 43 10.897 -0.058 0.000 0.88 0.0 62.9 OK15.002 44 10.053 -0.082 0.000 0.73 0.0 126.6 OK17.000 45 7.180 1.000 0.000 0.70 0.0 11.6 SURCHARGED15.003 46 6.920 1.380 0.199 1.18 0.0 123.2 FLOOD1.011 47 5.901 0.901 0.000 1.71 0.0 613.0 FLOOD RISK
18.000 48 5.851 0.751 0.000 0.93 0.0 18.0 SURCHARGED
-
GTA Consulting Page 4Unity House St Leonards2 Albert Drive Proposed NetworkBurgess Hill RH15 9TN 1 in 100 yr +20%Date Oct 2011 Designed by SFCFile 4037 PROPOSED SIM 1 I... Checked byMicro Drainage Network W.12.6
Summary of Results for 30 minute 100 year Summer (Storm)
©1982-2011 Micro Drainage Ltd
18.001 49 5.259 0.799 0.000 0.38 0.0 17.4 SURCHARGED1.012 50 5.240 0.590 0.000 2.54 0.0 630.8 SURCHARGED
PNUS/MHName
WaterLevel(m)
SurchargedDepth(m)
FloodedVolume(m³)
Flow /Cap.
Overflow(l/s)
PipeFlow(l/s) Status
-
Summary of Results for Input Hydrograph
StormEvent
MaxLevel(m)
MaxDepth(m)
MaxControl(l/s)
MaxVolume(m³)
Status
Input Hydrograph 3.790 0.290 141.1 418.3 O K
StormEvent
Time-Peak(mins)
Input Hydrograph 34
GTA ConsultingUnity House2 Albert DriveBurgess Hill RH15 9TNDate Oct 2011File Pond Simulation E...Micro Drainage
St LeonardsExisting Pond
Designed By SFCChecked BySource Control W.12.4
Page 1
©1982-2010 Micro Drainage Ltd
-
Model Details
Storage is Online Cover Level (m) 6.000
Tank or Pond Structure
Invert Level (m) 3.500
Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²)
0.000 900.0 1.400 8500.0 2.800 8500.0 4.200 8500.00.200 1650.0 1.600 8500.0 3.000 8500.0 4.400 8500.00.400 2400.0 1.800 8500.0 3.200 8500.0 4.600 8500.00.600 3150.0 2.000 8500.0 3.400 8500.0 4.800 8500.00.800 3909.0 2.200 8500.0 3.600 8500.0 5.000 8500.01.000 6420.0 2.400 8500.0 3.800 8500.01.200 8474.0 2.600 8500.0 4.000 8500.0
Pipe Outflow Control
Diameter (m) 1.200 Entry Loss Coefficient 0.500Slope (1:X) 40.0 Coefficient of Contraction 0.600Length (m) 16.000 Upstream Invert Level (m) 3.500
Roughness k (mm) 0.600
GTA ConsultingUnity House2 Albert DriveBurgess Hill RH15 9TNDate Oct 2011File Pond Simulation E...Micro Drainage
St LeonardsExisting Pond
Designed By SFCChecked BySource Control W.12.4
Page 2
©1982-2010 Micro Drainage Ltd
-
Summary of Results for Input Hydrograph
StormEvent
MaxLevel(m)
MaxDepth(m)
MaxControl(l/s)
MaxVolume(m³)
Status
Input Hydrograph 3.624 0.124 30.8 141.1 O K
StormEvent
Time-Peak(mins)
Input Hydrograph 34
GTA ConsultingUnity House2 Albert DriveBurgess Hill RH15 9TNDate Oct 2011File Pond Simulation E...Micro Drainage
St LeonardsExisting Pond
Designed By SFCChecked BySource Control W.12.4
Page 1
©1982-2010 Micro Drainage Ltd
-
Model Details
Storage is Online Cover Level (m) 6.000
Tank or Pond Structure
Invert Level (m) 3.500
Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²)
0.000 900.0 1.400 8500.0 2.800 8500.0 4.200 8500.00.200 1650.0 1.600 8500.0 3.000 8500.0 4.400 8500.00.400 2400.0 1.800 8500.0 3.200 8500.0 4.600 8500.00.600 3150.0 2.000 8500.0 3.400 8500.0 4.800 8500.00.800 3909.0 2.200 8500.0 3.600 8500.0 5.000 8500.01.000 6420.0 2.400 8500.0 3.800 8500.01.200 8474.0 2.600 8500.0 4.000 8500.0
Pipe Outflow Control
Diameter (m) 1.200 Entry Loss Coefficient 0.500Slope (1:X) 40.0 Coefficient of Contraction 0.600Length (m) 16.000 Upstream Invert Level (m) 3.500
Roughness k (mm) 0.600
GTA ConsultingUnity House2 Albert DriveBurgess Hill RH15 9TNDate Oct 2011File Pond Simulation E...Micro Drainage
St LeonardsExisting Pond
Designed By SFCChecked BySource Control W.12.4
Page 2
©1982-2010 Micro Drainage Ltd
-
Summary of Results for Input Hydrograph
StormEvent
MaxLevel(m)
MaxDepth(m)
MaxControl(l/s)
MaxVolume(m³)
Status
Input Hydrograph 3.802 0.302 129.3 442.7 O K
StormEvent
Time-Peak(mins)
Input Hydrograph 35
GTA ConsultingUnity House2 Albert DriveBurgess Hill RH15 9TNDate Oct 2011File Pond Simulation p...Micro Drainage
St LeonardsProposed Pond
Designed By SFCChecked BySource Control W.12.4
Page 1
©1982-2010 Micro Drainage Ltd
-
Model Details
Storage is Online Cover Level (m) 6.000
Tank or Pond Structure
Invert Level (m) 3.500
Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²)
0.000 900.0 1.400 8500.0 2.800 8500.0 4.200 8500.00.200 1650.0 1.600 8500.0 3.000 8500.0 4.400 8500.00.400 2400.0 1.800 8500.0 3.200 8500.0 4.600 8500.00.600 3150.0 2.000 8500.0 3.400 8500.0 4.800 8500.00.800 3909.0 2.200 8500.0 3.600 8500.0 5.000 8500.01.000 6420.0 2.400 8500.0 3.800 8500.01.200 8474.0 2.600 8500.0 4.000 8500.0
Pipe Outflow Control
Diameter (m) 0.900 Entry Loss Coefficient 0.500Slope (1:X) 40.0 Coefficient of Contraction 0.600Length (m) 16.000 Upstream Invert Level (m) 3.500
Roughness k (mm) 0.600
GTA ConsultingUnity House2 Albert DriveBurgess Hill RH15 9TNDate Oct 2011File Pond Simulation p...Micro Drainage
St LeonardsProposed Pond
Designed By SFCChecked BySource Control W.12.4
Page 2
©1982-2010 Micro Drainage Ltd
-
Summary of Results for Input Hydrograph
StormEvent
MaxLevel(m)
MaxDepth(m)
MaxControl(l/s)
MaxVolume(m³)
Status
Input Hydrograph 3.631 0.131 25.5 150.7 O K
StormEvent
Time-Peak(mins)
Input Hydrograph 35
GTA ConsultingUnity House2 Albert DriveBurgess Hill RH15 9TNDate Oct 2011File Pond Simulation p...Micro Drainage
St LeonardsProposed Pond
Designed By SFCChecked BySource Control W.12.4
Page 1
©1982-2010 Micro Drainage Ltd
-
Model Details
Storage is Online Cover Level (m) 6.000
Tank or Pond Structure
Invert Level (m) 3.500
Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²) Depth (m) Area (m²)
0.000 900.0 1.400 8500.0 2.800 8500.0 4.200 8500.00.200 1650.0 1.600 8500.0 3.000 8500.0 4.400 8500.00.400 2400.0 1.800 8500.0 3.200 8500.0 4.600 8500.00.600 3150.0 2.000 8500.0 3.400 8500.0 4.800 8500.00.800 3909.0 2.200 8500.0 3.600 8500.0 5.000 8500.01.000 6420.0 2.400 8500.0 3.800 8500.01.200 8474.0 2.600 8500.0 4.000 8500.0
Pipe Outflow Control
Diameter (m) 0.900 Entry Loss Coefficient 0.500Slope (1:X) 40.0 Coefficient of Contraction 0.600Length (m) 16.000 Upstream Invert Level (m) 3.500
Roughness k (mm) 0.600
GTA ConsultingUnity House2 Albert DriveBurgess Hill RH15 9TNDate Oct 2011File Pond Simulation p...Micro Drainage
St LeonardsProposed Pond
Designed By SFCChecked BySource Control W.12.4
Page 2
©1982-2010 Micro Drainage Ltd