Dear Steven :
Note that I looked at your HEC-RAS data, and have the following observations:
1. Many of the HEC-RAS cross-sections have more than 6 characters in the cross-section ID label. For example, the most upstream cross-section is labeled 50636.1. This is 7 characters long. And, although HEC-RAS supports this many characters in the cross-section ID label, HEC-2 limits this to 6 characters. So, these cross-section ID labels should be renamed to 6 characters (or less) in order for them to work with HEC-2.
2. Unfortunately, RMS / RiverCAD will not convert an Army Corps HEC-RAS model containing floodplain encroachment data into a equivalent HEC-2 model. If you manually define the HEC-RAS floodplain data within RMS / RiverCAD at a cross-section, then the software will attempt to define a similar floodplain encroachment for HEC-2. (Note that RMS / RiverCAD cannot always convert this data, since HEC-RAS allows additional options that are not supported by HEC-2.)
What I would do to convert this HEC-RAS floodplain encroachment data into HEC-2 data, would be to run both RMS / RiverCAD and Army Corps HEC-RAS programs adjacent to each other, and then simply manually define the HEC-2 encroachment data. You have 83 cross- sections, so this would take a little time, but not more than 20 minutes. RMS / RiverCAD provide "buttons" that you can use to move from cross-section to cross-section, and to display the floodplain encroachment dialog box.
I have added your request to our development list that RMS / RiverCAD support importing and converting HEC-RAS encroachment data to HEC-2.
If you have any additional questions or need any further information, please contact me again.
Sincerely,
Chris E. Maeder, M.S.
Senior Technical Engineer
chris.maeder@bossintl.com
Linear Mode
