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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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Flood Investigation & Stormwater Quantity Management Plan
Proposed Residential Development at Doonella - Stage C

#####END_RECORDED_HYDROGRAPHS
#####START_IMPORTED_HYDROGRAPHS
           0
#####END_IMPORTED_HYDROGRAPHS
#####END_STORM#5

#####START_RESULTS_STORM_5

#####START_CATCHMENT_SUMMARY############################################
Catchment area   (hectares) =        18.18
Impervious percent      (%) =        50.46
Rainfall depth         (mm) =        76.20
Excess rainfall        (mm) =        61.94
Calc. runoff depth     (mm) =        61.83 - from bottom subarea
Recd. runoff depth     (mm) =         0.00 - from bottom subarea
Calc. peak discharge (m3/s) =         2.553 - 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)
A
       0.000        0.000       0.958      0.327       0.000       0.000       1.285       0.000
B1
       1.285        0.000       0.785      1.378       0.000       0.000       3.446       0.001
Dodonaea
       3.446        0.000       0.000      0.000       0.000       0.000       3.445       0.001
B2
       3.453        0.000       0.388      0.559       0.000       0.000       4.390       0.009
C1
       0.000        0.000       0.272      0.789       0.000       0.000       1.061       0.000
C3
       0.000        0.000       0.017      0.107       0.000       0.000       0.124       0.000
C2
       0.124        0.000       0.250      0.910       0.000       0.000       1.282       0.002
Twigrush
       2.343        0.000       0.000      0.000       0.000       0.000       2.343       0.000
D3
       0.000        0.000       0.651      0.356       0.000       0.000       1.007       0.000
D1
       0.000        0.000       0.112      0.149       6.755       0.000       7.016       0.000
D2
       8.023        0.000       0.916      2.325       0.000       0.000      11.243       0.021
OUT
      11.243        0.000       0.000      0.000       0.000       0.000      11.243       0.000
#####END_VOLUME_SUMMARY#########################################################################

#####START_PEAK_SUMMARY###############################################################
SUBAREA OUT_STR       STREAM  STREAM     LOCAL     LOCAL    DIRECTED OUTLET_STRUCTURE
         1=exist         TOP  BOTTOM PERVIOUS IMPERVIOUS TO BOTTOM INFLOW       OUTFLOW
                   including                               including
                 imported to                             imported to
                        TOP                                  BOTTOM
                                                                   (Discharges in m3/s)
A             0        0.000   0.000     0.399     0.167     0.000      0.522     0.522
B1            0        0.522   0.377     0.341     0.653     0.000      1.187     1.187
Dodonaea      1        1.187   1.187     0.000     0.000     0.000      1.187     0.580
B2            1        0.580   0.578     0.191     0.278     0.000      0.829     0.829
C1            0        0.000   0.000     0.141     0.386     0.000      0.522     0.522
C3            1        0.000   0.000     0.013     0.057     0.000      0.071     0.071
C2            0        0.071   0.044     0.131     0.441     0.000      0.606     0.606
Twigrush      1        1.128   1.128     0.000     0.000     0.000      1.128     0.694
D3            0        0.000   0.000     0.294     0.181     0.000      0.439     0.439
D1            0        0.000   0.000     0.068     0.079     1.454      1.539     1.539
D2            0        1.913   1.619     0.386     1.069     0.000      2.553     2.553
OUT           0        2.553   2.553     0.000     0.000     0.000      2.553     2.553
#####END_PEAK_SUMMARY#################################################################

#####START_TIME_SUMMARY#########################################################
SUBAREA OUT_STR   STREAM   STREAM    LOCAL    LOCAL   DIRECTED OUTLET_STRUCTURE
        1=exist      TOP   BOTTOM PERVIOUS IMPERVIOUS TO BOTTOM INFLOW   OUTFLOW


B09182.W-02A


[OCR of page images]
Flood Investigation & Stormwater Quantity Management Plan
Proposed Residential Development at Doonella - Stage C

BROWN

Smart Water

 

#####END_RECORDED_HYDROGRAPHS
#####S TART_IMPORTED_HYDROGRAPHS
0
#####END_IMPORTED_HYDROGRAPHS
#####END_STORM#5

#####START_RESULTS_STORM_5S

#HHHS TART_CATCHMENT_SUMMARY #4444344: # HEH AEH HEA AEE HE AE AE

Catchment area (hectares) = 18.18
Impervious percent (%) = 50.46
Rainfall depth (mm) = 76.20
Excess rainfall (mm) = 61.94
Calc. runoff depth (mm) = 61.83 - from bottom subarea
Recd. runoff depth (mm) = 0.00 - from bottom subarea
Calc. peak discharge (m3/s) = 2.553 - from bottom subarea
Recd. peak discharge (m3/s) = 0.000 - from bottom subarea

##AHEND_CATCHMENT_SUMMARY #4444434 EEE A HEH A HEH HEE HEE AE

#HHHSTART_VOLUME_SUMMAR Y #4444 #444 AEE HEAT AE A AEA EAE EAE AEE AEA EAE EEE
SUBAREA DIRECTED IMPORTED LOCAL LOCAL DIRECTED IMPORTED OUTFLOW BALANCE
TO TOP TO TOP PERVIOUS IMPERVIOUS TO BOTTOM TO BOTTOM
(Volumes in thousands m3)

A

0.000 0.000 0.958 0.327 0.000 0.000 1.285 0.000
Bl

1.285 0.000 0.785 1.378 0.000 0.000 3.446 0.001
Dodonaea

3.446 0.000 0.000 0.000 0.000 0.000 3.445 0.001
B2

3.453 0.000 0.388 0.559 0.000 0.000 4.390 0.009
cl

0.000 0.000 0.272 0.789 0.000 0.000 1.061 0.000
c3

0.000 0.000 0.017 0.107 0.000 0.000 0.124 0.000
c2

0.124 0.000 0.250 0.910 0.000 0.000 1.282 0.002
Twigrush

2.343 0.000 0.000 0.000 0.000 0.000 2.343 0.000
D3

0.000 0.000 0.651 0.356 0.000 0.000 1.007 0.000
Dl

0.000 0.000 0.112 0.149 6.755 0.000 7.016 0.000
D2

8.023 0.000 0.916 2.325 0.000 0.000 11.243 0.021
OUT

11.243 0.000 0.000 0.000 0.000 0.000 11.243 0.000

##HAHEND_VOLUME_SUMMAR Y #4444444 EEE EEE A HEE AEE HEE HE EAE AE

##HHHSTART_PEAK_SUMMAR Y #444 AH A AH A HA AE A AE EEE

SUBAREA OUT_STR STREAM STREAM LOCAL LOCAL DIRECTED OUTLET_STRUCTURE
1=exist TOP BOTTOM PERVIOUS IMPERVIOUS TO BOTTOM INFLOW OUTFLOW

including including

imported to imported to

TOP BOTTOM
(Discharges in m3/s)
A 0 0.000 0.000 0.399 0.167 0.000 0.522 0.522
Bl 0 0.522 0.377 0.341 0.653 0.000 1.187 1.187
Dodonaea 1 1.187 1.187 0.000 0.000 0.000 1.187 0.580
B2 1 0.580 0.578 0.191 0.278 0.000 0.829 0.829
cl 0 0.000 0.000 0.141 0.386 0.000 0.522 0.522
c3 1 0.000 0.000 0.013 0.057 0.000 0.071 0.071
c2 0 0.071 0.044 0.131 0.441 0.000 0.606 0.606
Twigrush 1 1.128 1.128 0.000 0.000 0.000 1.128 0.694
D3 0 0.000 0.000 0.294 0.181 0.000 0.439 0.439
Dl 0 0.000 0.000 0.068 0.079 1.454 1.539 1.539
D2 0 1.913 1.619 0.386 1.069 0.000 2.553 2.553
OUT 0 2.553 2.553 0.000 0.000 0.000 2.553 2.553

#AHEND_PEAK_SUMMARY # at #4 EEE EEE TEE AEA HAE HAE AEE AEE EE

HHHHS TART_TIME_SUMMARY #444444 EEE AEE AEA HE AEH HE AEH AEE AE
SUBAREA OUT_STR STREAM STREAM LOCAL LOCAL DIRECTED OUTLET_STRUCTURE
l=exist TOP BOTTOM PERVIOUS IMPERVIOUS TO BOTTOM INFLOW OUTFLOW

 

B09182.W-02A

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