Appendix F

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Hydrograph Return Period Recap
                         Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2010 by Autodesk, Inc. v9.25


Hyd. Hydrograph   Inflow                                      Peak Outflow (cms)                                               Hydrograph
No.      type     hyd(s)                                                                                                       Description
       (origin)              1-yr        2-yr     3-yr        5-yr        10-yr    25-yr       50-yr       100-yr



 1    Rational      ------     -------    0.049     -------     -------    0.067     -------     -------    0.097   pre developed catchment 1 & 2

 2    Rational      ------     -------    0.096     -------     -------    0.130     -------     -------    0.187   pre developed catchment 3

 3    Combine        1, 2      -------    0.145     -------     -------    0.197     -------     -------    0.283   TOTAL PRE DEVELOPED

 4    Rational      ------     -------    0.144     -------     -------    0.195     -------     -------    0.281   post development catchment 3

 5    Rational      ------     -------    0.074     -------     -------    0.101     -------     -------    0.145   post development catchment 1 & 2

 6    Reservoir       4        -------    0.091     -------     -------    0.106     -------     -------    0.125   DETENTION BASIN

 7    Combine        5, 6      -------    0.152     -------     -------    0.192     -------     -------    0.250   TOTAL POST DEVELOPED




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                                                                         Tuesday,ABOVE
                                                                                  Apr 5, GROUND05-04.gpw
                                                                                         2011


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1
Hydrograph Return Period Reca

Hydraflow Prooraphs Extension for AutoCAD® Civil 3D® 2010 by Autodesk, Inc. v9.25

 

 

 

Hyd. |Hydrograph [Inflow Peak Outflow (cms) Hydrograph
No. type hyd(s) Description
(origin) 1-yr 2-yr 3-yr 5-yr 10-yr 25-yr 50-yr 100-yr
1 {Rational =f wwww== f= 0.049 | ------- | ------- 0.067 | ------- | ------- 0.097 | pre developed catchment 1 & 2
2 {Rational = | wwww== f= 0.096 | ------- | ------- 0.130 | ------- | ------- 0.187 | pre developed catchment 3
3. |Combine 1,2 0 | we 0.145 | ------- | ------- 0.197 | ------- | ------- 0.283 TOTAL PRE DEVELOPED
4 |Rational =| ------ | ---=-- 0.144 | ------- | ------- 0.195 | ------- | ------- 0.281 | post development catchment 3
5 |Rational = | wwww== fH 0.074 | ------- | ------- 0.101 | ------- | ------- 0.145 | post development catchment 1 & 2
6 |Reservoir Af wreeeee 0.091 | ------- | ------- 0.106 | ------- | ------- 0.125 DETENTION BASIN
7  |Combine 5,6 0.152 0.192 0.250 TOTAL POST DEVELOPED

         

 

 

 

 

 

 

 

 

 

 

 

 

 

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