Watershed Analysis with specific area

[gerrykroberts]

Hi All,

i' d like to "cut" a large basin having an area of about 70 Km2 into small parts that each one it will be approximately 1 Km2.

Is any way to do this with civil 3d watershed analysis or something else?

Regards

Gerry

[BrianHailey]

I'm assuming you want to create new catchment areas that are a specific size (1 Km2 in your example). There's no automated way to accomplish this that I'm aware of. The approach I would take would be to create a waterdrop and then use the "Create Catchment" tool and snap to an endpoint of the waterdrop line. See what the size of that catchment is and adjust accordingly.

[gerrykroberts]

Thanks a lot for your reply Brian.

Gerry

[fcernst]

Here’s the feature request for that:

https://forums.autodesk.com/t5/civil-3d-ideas/watershed-basin-delineation/idi-p/11677699 

[gerrykroberts]

Thank you very much, but this is only suggestions like using GIS software.

How to do this is my question.

Any help would be appreciated.

Regards

Gerry

[fcernst · Accepted solution]

Civil 3D doesn’t have watershed discretization threshold capabilties..

[gerrykroberts]

Thank you very much for giving your time to answer my question.

I really appreciate this.

Gerry