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 |
|---|---|---|---|---|---|---|---|
| Davis | Idaho | Valley | 34 | Significant | Fair | 1942 | Irrigation |
| Rhead Ranch | Idaho | Elmore | 34 | Low | Satisfactory | 1974 | Irrigation |
| Big Blue Creek | Idaho | Owyhee | 34 | Significant | Fair | 1910 | Other |
| Cow Creek | Idaho | Elmore | 34 | Low | Fair | 1915 | Irrigation |
| Hall | Idaho | Elmore | 33 | Significant | Poor | 1945 | Other |
| Francis | Idaho | Elmore | 33 | Significant | Fair | 1914 | Irrigation |
| King Reservoir South Dam | Idaho | Owyhee | 33 | Significant | Fair | 1969 | Irrigation |
| Star No 6 | Idaho | Shoshone | 33 | High | Fair | 1979 | Tailings |
| Bradshaw Detention Dam #3 | Idaho | Custer | 33 | Low | Not Rated | - | Flood Risk Reduction |
| Hammond | Idaho | Bear Lake | 33 | Significant | Fair | 1933 | Irrigation |
| Little Crane Creek | Idaho | Washington | 33 | Low | Satisfactory | 1908 | Irrigation |
| Upper Diversion Dam No. 2 | Idaho | Bonneville | 33 | Significant | Satisfactory | 1982 | Hydroelectric |
| Payne Creek | Idaho | Owyhee | 33 | Low | Fair | 1930 | Other |
| Andreasen Lower | Idaho | Franklin | 33 | Significant | Satisfactory | 1960 | Irrigation |
| Upper Salmon Falls Dam | Idaho | Gooding | 32 | Low | Satisfactory | 1937 | Hydroelectric |
| Jug Creek Upper | Idaho | Valley | 32 | Significant | Fair | 1946 | Irrigation |
| Teapot Lower | Idaho | Elmore | 32 | Significant | Fair | 1977 | Other |
| Surmeier | Idaho | Payette | 32 | Significant | Fair | 1978 | Other |
| Twin Lakes North | Idaho | Franklin | 32 | High | Fair | 1920 | Irrigation |
| Hardisty | Idaho | Owyhee | 31 | Significant | Fair | 1914 | Other |
| South Fork Detention Dam | Idaho | Custer | 31 | Low | Not Rated | - | Flood Risk Reduction |
| Wilson Lake | Idaho | Jerome | 31 | Significant | Fair | 1909 | Irrigation |
| Post Falls North Channel | Idaho | Kootenai | 31 | High | Fair | 1906 | Hydroelectric |
| Lost Valley | Idaho | Adams | 31 | High | Poor | 1910 | Other |
| Beal No 3 | Idaho | Valley | 30 | Significant | Fair | 1974 | Irrigation |
| Dewey | Idaho | Cassia | 30 | Significant | Satisfactory | 1913 | Irrigation |
| Twin Falls Intake Dam | Idaho | Twin Falls | 30 | Low | Satisfactory | 1935 | Hydroelectric |
| Trail | Idaho | Elmore | 30 | Significant | Fair | 1960 | Irrigation |
| Point of Rock | Idaho | Cassia | 30 | Significant | Satisfactory | 2004 | Other |
| Little Canyon | Idaho | Elmore | 30 | Significant | Fair | 1919 | Other |
| King Reservoir (West Dam) | Idaho | Owyhee | 30 | Significant | Fair | 1969 | Irrigation |
| City Diversion | Idaho | Bonneville | 30 | Low | Satisfactory | 1982 | Hydroelectric |
| Gem State Right Dike | Idaho | Bonneville | 30 | High | Satisfactory | 1988 | Hydroelectric |
| Gem State Left Dike | Idaho | Bonneville | 30 | High | Satisfactory | 1988 | Hydroelectric |
| Haul Road Pond (Monsanto) | Idaho | Caribou | 30 | Low | Satisfactory | 2009 | Other |
| Hancock | Idaho | Adams | 29 | Significant | Fair | 1931 | Fish and Wildlife Pond |
| Shiner Upper | Idaho | Lemhi | 29 | Significant | Fair | 1968 | Irrigation |
| 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 |
| Welling No 2 | Idaho | Bear Lake | 29 | Low | Satisfactory | 1962 | Irrigation |
| Diamond A | Idaho | Owyhee | 29 | Low | Fair | 1931 | Other |
| Andreasen Upper | Idaho | Franklin | 29 | Significant | Unsatisfactory | 1957 | Irrigation |
| Yanke | Idaho | Valley | 29 | Low | Fair | 1988 | Fish and Wildlife Pond |
| Hollenbeak | Idaho | Valley | 29 | Low | Fair | 1972 | Other |
| Stoneridge | Idaho | Bonner | 28 | Significant | Fair | 1969 | Recreation |
| Teapot Upper | Idaho | Elmore | 28 | Significant | Poor | 1977 | Other |
| Hot Springs No 3 | Idaho | Elmore | 28 | Significant | Fair | 1984 | Irrigation |
| Johnson | Idaho | Franklin | 28 | Significant | Fair | 1860 | Irrigation |
| Trail Diversion | Idaho | Elmore | 28 | Low | Fair | 1962 | Other |
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.