I have 80 monitoring sites snapped to a stream network for which I am trying to calculate the upstream distance to the closest feature in a separate dam shapefile (also snapped to that stream network).
I can calculate the closest distance along a network using Network Analyst, however I can't seem to specify flow direction. I can check my connectivity, and determined flow direction using Utility Network Analyst, but can't seem to calculate the upstream distance based on two shapefiles (you have to select individual points one at a time...).
Does anyone know about the functionality of either of these two tools and how I might make one of them work to take into account both flow direction, and distance between two point data sets? Am I missing something?
I'm out of ideas...