upstream watershed acres from point

Question

Hello. I need to calculate acreage of upstream watershed boundaries from points of intersection between a proposed alignment and surface waters. I have never used the ArcHydro tools and was pointed to the from the USGS StreamStats site and was wondering the best method for getting this information. I appreciate any help - just a point in the right direction to get me started. I am using ArcGIS 10.4 Thank you!

CrystalSchiffbauer-Bowles1 · Answer

Hello everyone. Well, it turns out the the StreamStats ended up working which saved me TONS of time. I think I must've been trying to use the application as they were finalizing v4 development because the last day I tried using it everything came together.

I appreciate everyone's help and input. Thanks!

CrystalSchiffbauer-Bowles1 · Answer

Thank you! I'll definitely look into these... and ask questions if I have any

MarkBoucher · Answer

Another helpful tool set can be found using HEC-GeoHMS. This is a free ArcMap tool that has the basics of the Arc Hydro tool.

The geoprocessing tools for Arc Hydro are in this tool but they are somewhat simplified. That is, you could use the GeoHMS tools just like the Arc Hydro tools. GeoHMS was created by ESRI for the US Army Corps of Engineers Hydraulic Engineering Center (HEC). It has additional tools to build HEC-HMS models, something I suppose you don't need. When you install HEC-GeoHMS it will also install the compatible Arc Hydro tools.