I am new to Arc Hydro, but my colleagues are using it for drainage area delineation and it appears to work well. I have downloaded Arc Map 10.8 and installed the version of Arc Map for 10.8x64. Everything appears to work well for filling sinks, flow direction, flow accumulation, stream definition, stream segmentation, drainage line processing, catchment grid delineation, catchment polygon processing, adjoint catchment processing and the append coastal catchments. Then when I go to point definition, I make sure that my stream snap is changed to the stream link, snap a point. Instead of the program zooming out to the drainage area, it stays focused on the point that I have snapped. If I accept the watershed boundary I get a small line around the point that I have placed. I can look inside the attributes table and it shows the name that I have given the watershed but the length is 0 and the area is 0. I have been in contact with tech support and no one can figure out what is going on. I have also been in contact with collogues who have also looked through the files and they can generate the drainage area without an issue. I sent the files to tech support and they were able to generate a drainage area. I have uninstalled and reinstalled both Arc Map 10.8 and Arc Hydro and I get the same issue. I am able to generate a watershed boundary within the spatial analyst tools but nothing inside of Arc Hydro. I am hoping someone on here has had a similar issue or can assist me in correcting this issue. Thanks Darin
... View more
