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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
Rundell Idaho Idaho 19 Significant Satisfactory 1975 Irrigation
J-Canal Reregulating Idaho Cassia 19 Significant Satisfactory 1994 Other
Thompson No 2 Idaho Clearwater 19 Significant Fair 1970 Irrigation
Challis Lake Idaho Custer 19 Low Poor 1951 Irrigation
Mill Creek Lake Idaho Lemhi 19 Low Fair 1928 Other
Indian Creek Idaho Blaine 19 Significant Fair 1930 Irrigation
Knox Meadow Idaho Valley 19 Significant Fair 1941 Irrigation
Eld Idaho Valley 19 Low Fair 1976 Irrigation
Hornet Creek Upper South Idaho Washington 19 Significant Fair 1913 Irrigation
Gorley Creek Idaho Lemhi 19 Low Poor 1913 Irrigation
Twin Falls Idaho Jerome 19 Low Satisfactory 1935 Hydroelectric
Hansen Idaho Latah 18 Significant Satisfactory 1976 Other
Sheep Creek Idaho Bear Lake 18 Low Poor 1951 Irrigation
Craig Idaho Washington 18 Low Fair 1978 Irrigation
Louie Lake Idaho Valley 18 Low Fair 1928 Irrigation
Shiner Lower Idaho Lemhi 18 Low Poor 1973 Irrigation
Soulen Main Dam Idaho Washington 18 Significant Fair 1935 Irrigation
Blue Creek Upper Idaho Fremont 18 Low Fair 1920 Other
Cross Cut Diversion Idaho Fremont 18 Low Satisfactory 1938 Irrigation
Hardisty Wilson West Idaho Owyhee 18 Low Fair 1918 Other
Taylor Lower Idaho Owyhee 18 Significant Fair 1965 Irrigation
Deer Flat East Dike Idaho Canyon 18 Low Not Available 1911 Irrigation
Deep Creek No 1 Idaho Twin Falls 18 Low Fair 1911 Other
Deer Flat Middle Dike Idaho Canyon 18 High Not Available 1911 Irrigation
Shoshone Falls Dam 4 Idaho Twin Falls 18 Low Satisfactory 1907 Hydroelectric
Toponce Ditch Dam Lower Idaho Caribou 18 Low Fair — Irrigation
Cottonwood Creek Upper Idaho Ada 18 Significant Fair 1961 Flood Risk Reduction
Taylor Upper Idaho Owyhee 18 Significant Fair 1964 Irrigation
Chilco Idaho Kootenai 17 Significant Fair 1907 Other
Wiregrass Idaho Bannock 17 Low Fair 1943 Irrigation
Nelson Idaho Latah 17 Low Satisfactory 1907 Irrigation
W-Drain Idaho Gooding 17 Significant Satisfactory 2008 Other
Holbrook Idaho Valley 17 Low Satisfactory 1955 Irrigation
Morrison Idaho Franklin 17 Low Fair 1959 Irrigation
Shaw Twins Upper Idaho Valley 17 Low Fair 1930 Irrigation
Pine Lake Idaho Valley 17 Low Fair 1974 Other
Spring Creek Idaho Camas 17 Low Fair 1918 Irrigation
Sirucek Reservoir Idaho Jerome 17 Low Poor 2003 Other
Bird Pond Idaho Lemhi 17 Low Fair 2010 Irrigation
Grouse Creek Main Dam Idaho Bonner 17 Low Fair 1992 Irrigation
Thompson No 1 Main Dam Idaho Nez Perce 17 Significant Fair 1967 Irrigation
Billy Creek Idaho Lemhi 16 Low Poor 1916 Irrigation
Mikesell Upper Idaho Fremont 16 Low Fair 1945 Irrigation
Gorley Creek Dike Idaho Lemhi 16 Low Poor 1913 Irrigation
Campbell Idaho Blaine 16 Low Fair 1913 Other
Juniper Creek Idaho Owyhee 16 Low Satisfactory 1923 Irrigation
Soda Creek Dike Idaho Caribou 16 Low Fair 1967 Other
Gatfield No 1 Idaho Gem 16 Significant Fair 1938 Other
Shoshone Falls Dam 2 Idaho Jerome 16 Low Satisfactory 1907 Hydroelectric
Shoshone Falls Dam 1 Idaho Jerome 16 Low Satisfactory 1907 Hydroelectric

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.