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My goal is to create a tool that, when you press on a fish barrier on the web map, highlights or gives you the number of fish barriers upstream of the one that you click on. I am working with NHD streams and fish barrier data. Unfortunately, the fish barrier points are not snapped to the NHD lines. I am looking for assistance on what tools to use and any other information/tips that people may have. I am new to the trace tool so I am trying to figure it out as best I can.

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  • This is not a solution to your online problem, but this may give you inspiration on the types of processing that can be done in ArcPro using a tool called RivEX? You could use it to quality control your river network to ensure your online solution is working as intended , for example?
    – Hornbydd
    Commented Jul 11 at 0:12

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