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I'm running ArcGIS Desktop 10.8, and am having trouble mapping the floodplain delineation using HEC-GeoRAS. I have an exported .xml file from HEC-RAS, and under the RAS Mapping pull down, I can successfully complete the Layer Setup, Import RAS Data, and Inundation Mapping --> Water Surface Generation steps. But before I can complete the Inundation Mapping --> Floodplain Delineation Using Rasters step, I get the following error messages. Therefore, I can get no further and cannot map my floodplain extents. I have tried using the terrain file in both TIN and GRID formats - both produce this same error. Please help!
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02-03-2021
06:35 PM
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How do you mark as correct? Shannon Wells Sent from my iPhone
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06-07-2015
02:50 PM
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I tried you what you said but couldn't get very far - probably b/c I don't fully understand how geodatabases and other file structures work. I could not even get past the first step. Thank for you for trying to help me though.
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06-06-2015
11:30 AM
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Took me a while b/c I've never used the CAD Fields Tool. Once I found it, I ran it then used the Field Calculator to calculate the values in the Elevations field to equal the CONTOUR field that was created when the contours were created. Then I exported to CAD, opened the CAD dwg and the Z values were assigned. Not sure if that's the exact process you were trying to convey, but it worked. I am not sure why I had to do all of this. I've been used ArcMap to export contours to CAD dwgs many times over the past 2-3 years and have never had to go thru these last couple of steps. But I have not exported contours since I've upgraded to Arcmap 10.3. May have something to do with that. THANK YOU VERY MUCH!!!!!!!!
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06-06-2015
11:27 AM
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I am working in ArcMap 10.3, and am trying to use ArcMap to create contours from a raster for use in an AutoCAD drawing . I created a contour shapefile from a raster, and the elevations are successfully created and can be viewed in the attribute table. Then I used the "Export to CAD" tool to create a CAD .dwg file (version 2007) . I can open the .dwg file in CAD but all of the contour objects have zero elevations. The contour elevation values are not transferring to the CAD file. Need help please.
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06-06-2015
08:59 AM
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