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 |
|---|---|---|---|---|---|---|---|
| Cow Creek | Idaho | Elmore | 34 | Low | Fair | 1915 | Irrigation |
| Dry Creek Dike | Idaho | Payette | 34 | Significant | Fair | 1976 | Irrigation |
| Rhead Ranch | Idaho | Elmore | 34 | Low | Satisfactory | 1974 | Irrigation |
| Davis | Idaho | Valley | 34 | Significant | Fair | 1942 | Irrigation |
| Bradshaw Detention Dam #3 | Idaho | Custer | 33 | Low | Not Rated | — | Flood Risk Reduction |
| Little Crane Creek | Idaho | Washington | 33 | Low | Satisfactory | 1908 | Irrigation |
| Upper Diversion Dam #2 | Idaho | Bonneville | 33 | Low | Satisfactory | 1982 | Hydroelectric |
| Payne Creek | Idaho | Owyhee | 33 | Low | Fair | 1930 | Other |
| Hall | Idaho | Elmore | 33 | Significant | Poor | 1945 | Other |
| Andreasen Lower | Idaho | Franklin | 33 | Significant | Satisfactory | 1960 | Irrigation |
| Star No 6 | Idaho | Shoshone | 33 | High | Fair | 1979 | Tailings |
| Hammond | Idaho | Bear Lake | 33 | Significant | Fair | 1933 | Irrigation |
| Francis | Idaho | Elmore | 33 | Significant | Fair | 1914 | Irrigation |
| King Reservoir South Dam | Idaho | Owyhee | 33 | Significant | Fair | 1969 | Irrigation |
| Twin Lakes North | Idaho | Franklin | 32 | High | Fair | 1920 | Irrigation |
| Jug Creek Upper | Idaho | Valley | 32 | Significant | Fair | 1946 | Irrigation |
| Upper Salmon Falls Dam | Idaho | Gooding | 32 | Low | Fair | 1937 | Hydroelectric |
| Surmeier | Idaho | Payette | 32 | Significant | Fair | 1978 | Other |
| Teapot Lower | Idaho | Elmore | 32 | Significant | Fair | 1977 | Other |
| South Fork Detention Dam | Idaho | Custer | 31 | Low | Not Rated | — | Flood Risk Reduction |
| Hardisty | Idaho | Owyhee | 31 | Significant | Fair | 1914 | Other |
| Post Falls North Channel | Idaho | Kootenai | 31 | High | Fair | 1906 | Hydroelectric |
| Wilson Lake | Idaho | Jerome | 31 | Significant | Fair | 1909 | Irrigation |
| Lost Valley | Idaho | Adams | 31 | High | Poor | 1910 | Other |
| Gem State Left Dike | Idaho | Bonneville | 30 | High | Satisfactory | 1988 | Hydroelectric |
| Little Canyon | Idaho | Elmore | 30 | Significant | Fair | 1919 | Other |
| Twin Falls Intake Dam | Idaho | Twin Falls | 30 | Low | Satisfactory | 1935 | Hydroelectric |
| Gem State Right Dike | Idaho | Bonneville | 30 | High | Satisfactory | 1988 | Hydroelectric |
| King Reservoir (West Dam) | Idaho | Owyhee | 30 | Significant | Fair | 1969 | Irrigation |
| City Diversion | Idaho | Bonneville | 30 | Low | Satisfactory | 1982 | Hydroelectric |
| Dewey | Idaho | Cassia | 30 | Significant | Satisfactory | 1913 | Irrigation |
| Beal No 3 | Idaho | Valley | 30 | Significant | Fair | 1974 | Irrigation |
| Point of Rock | Idaho | Cassia | 30 | Significant | Satisfactory | 2004 | Other |
| Trail | Idaho | Elmore | 30 | Significant | Fair | 1960 | Irrigation |
| Haul Road Pond (Monsanto) | Idaho | Caribou | 30 | Low | Satisfactory | 2009 | Other |
| Diamond A | Idaho | Owyhee | 29 | Low | Fair | 1931 | Other |
| Andreasen Upper | Idaho | Franklin | 29 | Significant | Unsatisfactory | 1957 | Irrigation |
| Hancock | Idaho | Adams | 29 | Significant | Fair | 1931 | Fish and Wildlife Pond |
| Yanke | Idaho | Valley | 29 | Low | Fair | 1988 | Fish and Wildlife Pond |
| China Hat Dike | Idaho | Caribou | 29 | High | Satisfactory | 1923 | Irrigation |
| Sommerville | Idaho | Owyhee | 29 | Low | Fair | 1926 | Other |
| Horseshoe | Idaho | Custer | 29 | Low | Not Rated | 1967 | Flood Risk Reduction |
| Shiner Upper | Idaho | Lemhi | 29 | Significant | Fair | 1968 | Irrigation |
| Welling No 2 | Idaho | Bear Lake | 29 | Low | Satisfactory | 1962 | Irrigation |
| Hollenbeak | Idaho | Valley | 29 | Low | Fair | 1972 | Other |
| Paul | Idaho | Clark | 28 | Low | Poor | 1911 | Other |
| Little (North Crane Creek Dam) | Idaho | Washington | 28 | Significant | Fair | 1895 | Irrigation |
| Trail Diversion | Idaho | Elmore | 28 | Low | Fair | 1962 | Other |
| Johnson | Idaho | Franklin | 28 | Significant | Fair | 1860 | Irrigation |
| Stoneridge | Idaho | Bonner | 28 | Significant | Fair | 1969 | Recreation |
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.