AutoCAD Civil 3D - Stormwater

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*John Mayo
Message 1 of 3 (151 Views)

100yr flow diverted

151 Views, 2 Replies
03-25-2010 01:58 PM
I need a hydrograph with identical 25 & 100 yr peak flows so I can add it to
another hydrograph.

I have watershed 1 which is piped to detention basin 1 with a 25 yr
capacity. Larger storms to watershed 1 run down the road to detention basin
2 in watershed 2 which is not part of my study. Can Hydrographs be tricked
out to add the 100 yr surface runoff to basin 1 & the 25 yr pipe flow?



--
John Mayo, PE

Core i7 920 6GB DDR3
Radeon 4870HD 1 GB
Vista64
*Matt.Anderson
Message 2 of 3 (151 Views)

Re: 100yr flow diverted

03-26-2010 07:41 PM in reply to: *John Mayo
Short of Importing a Manual Hydrograph from the results of one return
period generated separately? Ie, generate your 100 year hydrograph,
export, and save that model. Create your 25 year model, and import the
100-year hydrograph as 25-year results, and run.

Matthew Anderson, PE



John Mayo wrote:
> I need a hydrograph with identical 25 & 100 yr peak flows so I can add it to
> another hydrograph.
>
> I have watershed 1 which is piped to detention basin 1 with a 25 yr
> capacity. Larger storms to watershed 1 run down the road to detention basin
> 2 in watershed 2 which is not part of my study. Can Hydrographs be tricked
> out to add the 100 yr surface runoff to basin 1 & the 25 yr pipe flow?
>
>
>
>
*John Mayo
Message 3 of 3 (151 Views)

Re: 100yr flow diverted

03-31-2010 07:32 AM in reply to: *John Mayo
Thanks Matt.

--
John Mayo, PE

Core i7 920 6GB DDR3
Radeon 4870HD 1 GB
Vista64

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