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 |
|---|---|---|---|---|---|---|---|
| Crane Gulch Main Fork | Idaho | Ada | 46 | Significant | Satisfactory | 1998 | Flood Risk Reduction |
| Sage Hen | Idaho | Gem | 46 | Significant | Fair | 1939 | Other |
| Samaria No 2 Upper | Idaho | Oneida | 46 | Significant | Fair | 1947 | Other |
| Shoofly | Idaho | Owyhee | 46 | Low | Fair | 1977 | Irrigation |
| Conda Site Mtis (Simplot) | Idaho | Caribou | 45 | Significant | Satisfactory | 1979 | Tailings |
| Blackhawk Lake | Idaho | Valley | 45 | Significant | Fair | 1968 | Irrigation |
| Five Mile Erosion Contr | Idaho | Franklin | 44 | Low | Satisfactory | 1952 | Other |
| Orchard | Idaho | Ada | 43 | Significant | Poor | 1902 | Other |
| Corral Creek | Idaho | Valley | 43 | Significant | Fair | 1952 | Irrigation |
| Hidden Springs Cell 3a | Idaho | Ada | 43 | Significant | Satisfactory | 2007 | Other |
| Hughes | Idaho | Valley | 43 | Significant | Fair | 1957 | Irrigation |
| Saint John | Idaho | Oneida | 43 | High | Unsatisfactory | 1918 | Irrigation |
| Deep Creek No 2 | Idaho | Twin Falls | 42 | Significant | Fair | 1911 | Other |
| Weston | Idaho | Oneida | 42 | High | Fair | 1929 | Other |
| Tyson West | Idaho | Owyhee | 42 | Low | Fair | 1967 | Irrigation |
| Delamar Wmp-1 | Idaho | Owyhee | 42 | Low | Satisfactory | 2009 | Tailings |
| Murtaugh Lake | Idaho | Twin Falls | 42 | High | Fair | 1905 | Irrigation |
| Jenkins Creek | Idaho | Washington | 41 | Low | Fair | 1915 | Other |
| Condie | Idaho | Franklin | 41 | Significant | Satisfactory | 1948 | Other |
| Deyo | Idaho | Clearwater | 41 | Significant | Satisfactory | 2011 | Other |
| Hot Springs No 2 | Idaho | Elmore | 41 | High | Fair | 1968 | Irrigation |
| Curlew Valley | Idaho | Oneida | 41 | Significant | Poor | 1911 | Other |
| Sunset Palisades | Idaho | Nez Perce | 41 | Significant | Fair | 1973 | Irrigation |
| Louisa Creek | Idaho | Owyhee | 41 | Low | Poor | 1931 | Other |
| Winchester | Idaho | Lewis | 40 | High | Fair | 1910 | Other |
| Gem State | Idaho | Bonneville | 40 | High | Satisfactory | 1988 | Hydroelectric |
| Portneuf Wellness Complex | Idaho | — | 39 | Significant | Satisfactory | 2014 | Recreation |
| Simplot Effluent Irrigation Lagoon | Idaho | Bannock | 39 | High | Fair | 1981 | Irrigation |
| Strong Arm No 1 (Upper) | Idaho | Franklin | 39 | High | Fair | 1887 | Other |
| Stewart Gulch North Fork | Idaho | Ada | 38 | Significant | Satisfactory | 1997 | Flood Risk Reduction |
| Herrick | Idaho | Valley | 38 | Significant | Fair | 1953 | Other |
| Oxbow Fuse Plug | Idaho | Adams | 37 | High | Fair | 1961 | Hydroelectric |
| Little (Upper Bissel Creek Dam) | Idaho | Gem | 37 | Significant | Fair | 1963 | Other |
| Little Blue Creek | Idaho | Owyhee | 37 | Significant | Poor | 1914 | Other |
| Idaho Falls Upper Powerhouse Dam No 2 | Idaho | Bonneville | 37 | Low | Satisfactory | 1982 | Hydroelectric |
| Rock Creek | Idaho | Owyhee | 37 | Significant | Fair | 1965 | Irrigation |
| Twin Lakes South | Idaho | Franklin | 36 | High | Satisfactory | 1920 | Irrigation |
| Deep Creek Upper | Idaho | Oneida | 36 | Significant | Fair | 1906 | Irrigation |
| Soda Creek Main Dam | Idaho | Caribou | 36 | High | Fair | 1967 | Other |
| Bray Lake | Idaho | Gooding | 36 | Significant | Fair | 1915 | Irrigation |
| Monroe | Idaho | Washington | 36 | Low | Fair | 1916 | Irrigation |
| Dry Creek Diversion | Idaho | Payette | 35 | Low | Fair | 1976 | Irrigation |
| Smalley | Idaho | Valley | 35 | Low | Fair | 1952 | Irrigation |
| Strickland | Idaho | Owyhee | 35 | Low | Fair | 1927 | Other |
| Samaria No 1 Lower | Idaho | Oneida | 35 | Significant | Fair | 1934 | Other |
| Hawkins | Idaho | Bannock | 35 | Significant | Fair | 1870 | Irrigation |
| Elkington | Idaho | Bonneville | 35 | Low | Fair | 1994 | Irrigation |
| Blackfoot Bridge Wmp #1 & #2 | Idaho | Caribou | 35 | Significant | Satisfactory | 2012 | Other |
| Boulder Meadow | Idaho | Valley | 35 | Significant | Poor | 1968 | Irrigation |
| Dry Creek Dike | Idaho | Payette | 34 | Significant | Fair | 1976 | 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.