Results 1 to 2 of 2

Thread: I'd Value Your Input on Case Study Using Hydraflow Hydrographs

  1. #1
    Join Date
    Login to Give a bone

    Default I'd Value Your Input on Case Study Using Hydraflow Hydrographs

    Hi All,

    I'm looking for someone to independently verify some results from Hydraflow Hydrographs. I'm baffled as to the behavior of this tool and would appreciate your thoughts to help explain it.

    The situation: the pond has a wet pond elevation at 491. Thus, storage of incoming hydrograph should begin at this elevation. In my original work with this data, I noticed that the model lacked contour information for stages 1 and 3. I added data for these two stages, which did provide more detail, but did not affect storage for the pond. In fact, it shouldn't change any of the results since stages 1 and 3 are below the wet pond elevation. However, the results were dramatically different when compared to the original data set. Why is this? Why would additional information, which should not impact storage, change the results in any way?

    The Hydrograph files are attached. The "design" condition is "13010 revised pond 2-15-12.gpw" and the same data set with contour data below 491 removed is "20140624 What If Scenario...".

    I'd value your thoughts on explaining the behavior of this tool. Perhaps this is a bug or maybe there's a rational explanation that I'm overlooking.

    On a broader topic, does anyone have suggestions on how to get technical support for this tool?


  2. #2
    Join Date
    San Antonio
    Login to Give a bone

    Default Re: I'd Value Your Input on Case Study Using Hydraflow Hydrographs

    We have had our hydrograph models randomly get confused between the last selected watershed computation point. It seems to have an indexing issue and will add the values from a previous flow computation to the most recently selected watershed to edit. If you do not catch this it will overwrite the data. Might be why your data is different. Cursor blinks erratically when hoovering over it as well. Basically the rule of thumb is to check all values used in the model twice... no make that 5 times.


Similar Threads

  1. CV304-4: Detention Pond Design the Easy Way With Hydraflow Hydrographs
    By Autodesk University in forum Civil Infrastructure
    Replies: 2
    Last Post: 2020-09-21, 02:35 PM
  2. Replies: 0
    Last Post: 2015-08-07, 05:23 PM
  3. Hydraflow Hydrographs Extension para AutoCAD Civil 3D 2010
    By diegocortes9 in forum AutoCAD Civil 3D - General
    Replies: 0
    Last Post: 2010-06-15, 04:34 PM
  4. SCS Type IIA in Hydraflow Hydrographs
    By civil3d.wishlist1941 in forum Civil 3D Wish List
    Replies: 0
    Last Post: 2008-11-07, 12:07 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts