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Flood Investigation & Stormwater Quantity Management Plan
Attached to the e-mail Doonella Stage C (Email 4 of 7) IDAS Forms 1 & 6 and Flood Investigation - OPW14/0197.
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Log in to see the plans as drawnFlood Investigation & Stormwater Quantity Management Plan
Proposed Residential Development at Doonella - Stage C
(Volumes in thousands m3)
Dodonaea 0.001 5.768 5.767 0.002 0.000
B2 0.000 7.327 7.327 0.000 0.000
C3 0.000 0.195 0.195 0.000 0.000
Twigrush 0.000 3.735 3.735 0.000 0.000
SUBAREA INFLOW OUTFLOW INFLOW MAX.VOL MAX.WATER
PEAK PEAK VOLUME STORED ELEVATION
(m3/s) (m3/s) (m3 E3) (m3 E3) (metres)
Dodonaea 1.956 1.007 5.768 2.059 12.035
B2 1.193 1.193 7.327 0.000 1.021
C3 0.096 0.096 0.195 0.000 1.198
Twigrush 1.619 1.429 3.735 1.082 9.385
#####END_OUTLET_STRUCTURE_SUMMARY########################################
#####END_RESULTS_STORM_14
#####START_STORM#17
100 Year ARI 90 Mins Duration DESIGN STORM
2.00
2.00
#####START_DESIGN_RAIN
100 90 1.00
IFD_COEFFS_IN_THIS_FILE
1
Q_Beckmans 3UNKNOWN 0.00 0.00 27.00 52.03 10.34 3.46
93.95 24.00 8.66 4.40 17.60 0.11 1400.00 25 0.87 (-
26.41,153.03)
#####END_DESIGN_RAIN
#####START_CALC_RAINGAUGE_WEIGHTS
#####END_CALC_RAINGAUGE_WEIGHTS
#####START_LOSS_RATES
A 25.00 2.50 1.00
B1 25.00 2.50 1.00
Dodonaea 25.00 2.50 1.00
B2 25.00 2.50 1.00
C1 25.00 2.50 1.00
C3 25.00 2.50 1.00
C2 25.00 2.50 1.00
Twigrush 25.00 2.50 1.00
D3 25.00 2.50 1.00
D1 25.00 2.50 1.00
D2 25.00 2.50 1.00
OUT 25.00 2.50 1.00
#####END_LOSS_RATES
#####START_RECORDED_HYDROGRAPHS
0
#####END_RECORDED_HYDROGRAPHS
#####START_IMPORTED_HYDROGRAPHS
0
#####END_IMPORTED_HYDROGRAPHS
#####END_STORM#17
#####START_RESULTS_STORM_17
#####START_CATCHMENT_SUMMARY############################################
Catchment area (hectares) = 18.18
Impervious percent (%) = 50.46
Rainfall depth (mm) = 129.11
Excess rainfall (mm) = 114.64
Calc. runoff depth (mm) = 114.61 - from bottom subarea
Recd. runoff depth (mm) = 0.00 - from bottom subarea
Calc. peak discharge (m3/s) = 5.181 - from bottom subarea
Recd. peak discharge (m3/s) = 0.000 - from bottom subarea
#####END_CATCHMENT_SUMMARY##############################################
#####START_VOLUME_SUMMARY#######################################################################
SUBAREA DIRECTED IMPORTED LOCAL LOCAL DIRECTED IMPORTED OUTFLOW BALANCE
TO TOP TO TOP PERVIOUS IMPERVIOUS TO BOTTOM TO BOTTOM
(Volumes in thousands m3)
B09182.W-02A
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