Aquatic Barrier Prioritization ToolAquatic Barrier Tool

  • Explore regions

Across the full analysis area, there are:

460,266 inventoried dams, including:

  • 29,662 that have been reconned for social feasibility of removal
  • 423,208 have been analyzed for their impacts to aquatic connectivity in this tool

Click on a summary unit the map for more information about that area.

Search for hydrologic unit:

Note: These statistics are based on inventoried dams. Because the inventory is incomplete in many areas, areas with a high number of dams may simply represent areas that have a more complete inventory.

37,058 dams were not analyzed because they could not be correctly located on the aquatic network or were otherwise excluded from the analysis.