Dana Probert

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    « Friday Whetstone 6-19-2009 | Main | Civil 3D Site Design Webcast Today 6-26-2009 »

    June 19, 2009

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    Dana,

    It has been a number of years ago now and it was probably autocad 2000 version of LDD that i attempted to use the catchment tool to determine a drainage area boundary. It is a neat idea but i had absolutely no luck in being able to use it for the same reasons you point out now with the 3D version. By the time i got all of the "Micro Ponds" out of the dtm..... well lets just say that i might still me messing with it 10 year later.

    I would like to hear more feedback from you on this one.

    David Perrings, PE
    dperrings@padesignresources.com

    I can usually get SOME use out of even the LDD watersheds. When I first start a project, I would create the watersheds and use the lines as aids to help me find high & low points where the water breaks. I would trace over some with end point Osnap or split down the middle the multi areas. then I would erase them & forget them.

    Are these new catchments areas supposed to be able to be added together and split apart as a 'parcel' database? That would be more useful.

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