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Browse Dams

406 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 406 dams from the NID database. Each record includes dam name, location, physical dimensions, hazard potential classification, condition assessment, purpose, owner information, and emergency action plan status. Use the filters below to search by state, hazard level, condition, or keyword.

Name State County Height (ft) Hazard Condition Year Purpose
Grasmere Middle Dam Idaho Owyhee 16 Low Poor 1936 Other
Deer Flat Middle Idaho Canyon 16 High Fair 1911 Other
Post Falls Earth Dike Idaho Kootenai 16 High Satisfactory 1990 Hydroelectric
Spencer Idaho Idaho 15 Significant Fair 1954 Irrigation
Stewart Ranch Idaho Caribou 15 Low Fair 1965 Other
Egbert Dam Idaho Fremont 15 Low Fair 1982 Irrigation
Indian Creek Upper Idaho Caribou 15 Low Fair 1975 Irrigation
Pioneer Idaho Gooding 15 Significant Fair 1910 Irrigation
Boulder Lake Idaho Valley 15 Significant Fair 1902 Irrigation
Lodge Pond Idaho Payette 15 Significant Fair 1910 Irrigation
Land Idaho Washington 15 Low Fair 1976 Other
Shoshone Falls Dam 3 Idaho Jerome 15 Low Satisfactory 1907 Hydroelectric
Payette Lake Upper Idaho Valley 15 Significant Fair 1953 Irrigation
Cottonwood Creek Lower Idaho Ada 15 Significant Fair 1961 Flood Risk Reduction
Seeley Lower Idaho Fremont 14 Low Fair — Irrigation
Twin Lakes Idaho Kootenai 14 Significant Fair 2005 Flood Risk Reduction
Flying Joseph Dam Idaho Custer 14 Low Poor 2008 Other
Walker Idaho Elmore 14 Significant Fair 1954 Irrigation
Lower Diversion Idaho Bonneville 14 Low Satisfactory 1982 Hydroelectric
Summit Idaho Camas 13 Low Fair 1941 Other
Hayden Lake Idaho Kootenai 13 Low Fair 1910 Other
Springfeild Bird Haven Idaho Bingham 13 Low Poor — Other
Silver Lake Idaho Fremont 13 Significant Fair 1915 Recreation
Fife Idaho Bear Lake 13 Low Poor — Recreation
Enders Idaho Caribou 13 Low Satisfactory — Other
Upper Bear Dam Idaho Idaho 13 Low Not Rated 1910 Recreation
Stanislaw Lake Idaho Blaine 13 Significant Fair 1997 Other
Tindall Idaho Owyhee 13 Low Fair 1951 Irrigation
Salmon Falls Creek Idaho Twin Falls 13 Low Satisfactory 1956 Irrigation
Snow Creek North Idaho Owyhee 13 Low Fair 1957 Other
Kinyon Pond Dam Idaho Twin Falls 13 Low Satisfactory 2014 Irrigation
Box Lake Idaho Valley 13 Low Fair 1935 Irrigation
Nixon No 2 Idaho Boundary 13 Low Poor — Irrigation
Hulet No 2 Dike Idaho Owyhee 13 Low Poor 1987 Irrigation
Payette Lake Idaho Valley 13 Significant Fair 1943 Other
Courtright Dike Idaho Washington 12 Low Fair 1973 Irrigation
Priest Lake Idaho Bonner 12 Significant Fair 1979 Other
Upper Dike Idaho Bonneville 12 High Satisfactory 1982 Hydroelectric
Island Park Dike Idaho Fremont 12 High Not Available 1938
Lone Tree Idaho Owyhee 12 Low Fair 1918 Other
Buffalo River Idaho Fremont 12 Low Satisfactory 1936 Hydroelectric
Snow Creek South Idaho Owyhee 11 Low Fair 1957 Irrigation
Foland Idaho Owyhee 11 Low Fair 1916 Other
Little Payette Lake Dike Idaho Valley 11 Significant Poor 1926 Irrigation
Grasmere South Dike Idaho Owyhee 11 Low Fair 1909 Irrigation
Grasmere East Dam Idaho Owyhee 11 Significant Poor — Irrigation
Grace Dike Idaho Caribou 10 Significant Fair — Irrigation
Ravenscroft Diversion Idaho Gooding 10 Low Satisfactory 1983 Hydroelectric
Avondale Lake Idaho Kootenai 9 Significant Fair — Other
Hardisty Wilson East Idaho Owyhee 9 Low Satisfactory 1918 Irrigation

Frequently Asked Questions

Hazard potential is based on the consequences of dam failure, not the condition of the dam. High hazard means loss of human life is probable. Significant means economic and environmental losses are expected but no probable loss of life. Low means minimal losses are expected. The classification considers downstream population, infrastructure, and environmental resources.

Condition ratings reflect the physical state of the dam based on periodic inspections. Satisfactory means no deficiencies found. Fair means minor issues exist but no immediate action needed. Poor means safety deficiencies require remedial action. Unsatisfactory means the dam is unsafe and immediate corrective action is required.

Yes. Use the search field above to find dams by name. You can also combine the search with state, hazard, and condition filters to narrow your results. Each dam record links to a detail page with complete information.