Arc Hydro-Depression Evaluation Trouble

Discussion created by adgis on Jun 11, 2010
Latest reply on Feb 8, 2012 by joshua.t.wolf

I trying to delineate subwatersheds using Arc Hydro. I'm using a DEM derived from LIDAR. So far, I've converted the DEM to an integer DEM  and run the sink evaluation. The size of the prefilled DEM that I'm trying to run the depression evaluation on is 8.86 GB. My problem is when I run the depression evaluation, it runs for a while (over 8 hrs) then gives me the message "Build VAT might have failed make sure raster target location is not GDB and path does not contain space." Does this simply just mean I have to change the path of where it stores the depression data? Would I do this under "Set target locations for HydroConfig, Layers?" I looked back at some other depression evaluations and their all located in the geodatabase in layers so I'm not sure what the issue is. Is the DEM too big?

Any input would be appreciated.