Aquatic Barrier Prioritization ToolAquatic Barrier Tool


Southwest Region

Southwest region map
Map of 104,320 inventoried dams in the Southwest region.

Includes 9 states with:

104,320 inventoried dams, including:

  • 103 that have been reconned for social feasibility of removal

416,882 or more potential road-related aquatic barriers, including:

  • 1,428 that have been assessed for impacts to aquatic organisms
    • 699 of these are likely to impact aquatic organisms
Explore how many dams or road-related barriers there are in a state, county, watershed, or ecoregion.
Identify and rank dams or road-related barriers that reconnect the most high-quality aquatic networks.

Statistics by state:

Inventoried damsReconned damsInventoried road-related barriers
New Mexico5111917

2,043 inventoried dams and 50 inventoried road-related barriers were not analyzed because they could not be correctly located on the aquatic network or were otherwise excluded from the analysis. You can optionally include these in your download.

Note: These statistics are based on inventoried dams and road-related barriers. 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.

You can help!

You can help improve the inventory You can help improve the inventory by sharing data, assisting with field reconnaissance to evaluate the impact of aquatic barriers, or even by reporting issues with the inventory data in this tool.

Contact us to learn more about how you can help improve aquatic connectivity in the Great Plains & Intermountain West.