Browse Dams
1,402 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 1,402 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 |
|---|---|---|---|---|---|---|---|
| Dillon Dam - Nashport Dike | Ohio | Muskingum | 48 | High | Not Available | 1959 | Flood Risk Reduction |
| Barnesville Reservoir No. 2 Dam | Ohio | Belmont | 48 | High | Poor | 1936 | Water Supply |
| Hillsboro Upground Reservoir | Ohio | Highland | 48 | Significant | Poor | 1991 | Water Supply |
| Salem Reservoir (South Embankment) | Ohio | Columbiana | 48 | High | Poor | 1952 | Water Supply |
| Red Hill Farm Dam No. 1 | Ohio | Guernsey | 48 | Significant | Fair | 1994 | Irrigation |
| Dorothy Mine Pond Dam | Ohio | Jefferson | 48 | Significant | Fair | 1950 | Other |
| Ross Lake Dam | Ohio | Ross | 48 | High | Poor | 1967 | Recreation |
| Timberlake No. 1 Dam | Ohio | Franklin | 48 | Significant | Satisfactory | - | Recreation |
| Luburgh Lake Dam No. 11 | Ohio | Muskingum | 48 | Significant | Satisfactory | 1963 | Recreation |
| Shelby Upground Reservoir No. 2 | Ohio | Richland | 48 | High | Fair | 1955 | Water Supply |
| Dover Dam - Zoar Levee | Ohio | Tuscarawas | 48 | High | Not Available | 1951 | Flood Risk Reduction |
| Ross Trails Lake Dam | Ohio | Butler | 48 | High | Satisfactory | 1960 | Recreation |
| Cambridge City Reservoir Dam | Ohio | Guernsey | 47 | Significant | Fair | 1916 | Water Supply |
| Bel-Wood Country Club Lake No. 2 Dam | Ohio | Warren | 47 | Significant | Fair | 1965 | Recreation |
| Brushy Fork No. 7 Dam | Ohio | Harrison | 47 | Significant | Poor | 1950 | Tailings |
| Lake Viering Dam | Ohio | Knox | 47 | High | Poor | 1964 | Recreation |
| Westerville Reservoir Dam | Ohio | Delaware | 47 | High | Satisfactory | 1960 | Water Supply |
| Cline Lake Dam | Ohio | Noble | 47 | High | Fair | 2003 | Recreation |
| Mosquito Creek Dam | Ohio | Trumbull | 47 | High | Not Available | 1944 | Flood Risk Reduction |
| Lower Woodsfield Reservoir Dam | Ohio | Monroe | 47 | Significant | Poor | 1901 | Water Supply |
| John R. Doutt Upground Reservoir | Ohio | Delaware | 46 | High | Fair | 2014 | Water Supply |
| Beckjord Ash Pond B | Ohio | Clermont | 46 | Significant | Satisfactory | - | Tailings |
| Mohicanville Dam | Ohio | Ashland | 46 | High | Not Available | 1937 | Flood Risk Reduction |
| Little Mountain Dam "A" | Ohio | Lake | 46 | Significant | Poor | - | Water Supply |
| Kirila Pond Dam | Ohio | Trumbull | 46 | Significant | Poor | 1950 | Recreation |
| Scioto County Sludge Lagoon | Ohio | Scioto | 46 | Significant | Fair | 1980 | Tailings |
| Sharonville Retention Dam | Ohio | Hamilton | 46 | High | Fair | 1967 | Flood Risk Reduction |
| Lake Legendary Dam | Ohio | Muskingum | 45 | Significant | Satisfactory | 1968 | Recreation |
| New Lexington Reservoir Dam | Ohio | Perry | 45 | High | Poor | 1936 | Water Supply |
| Hayes Lake Dam | Ohio | Cuyahoga | 45 | Significant | Fair | 1968 | Recreation |
| Roaming Rock Shores Lake Dam | Ohio | Ashtabula | 45 | High | Poor | 1967 | Recreation |
| R & F Lamira Freshwater Dam | Ohio | Belmont | 45 | Significant | Satisfactory | 1979 | Water Supply |
| Powel Crosley Lake Dam | Ohio | Clermont | 45 | Significant | Satisfactory | 1967 | Recreation |
| Equinus (Legendary Run) Lake Dam | Ohio | Clermont | 45 | High | Satisfactory | 2001 | Water Supply |
| Cadiz Country Club Pond Dam | Ohio | Harrison | 45 | Significant | Fair | 1968 | Recreation |
| Stoneybrook Farm Lake Dam | Ohio | Warren | 45 | Significant | Fair | 1968 | Recreation |
| Metzger Upground Reservoir | Ohio | Allen | 45 | High | Fair | 1946 | Water Supply |
| Georgetown Plant Lower Supply Pond Dam | Ohio | Harrison | 45 | Significant | Not Rated | 1951 | Water Supply |
| Senecaville Dam | Ohio | Guernsey | 45 | High | Not Available | 1937 | Flood Risk Reduction |
| Sunnyhill Freshwater Reservoir Dam | Ohio | Perry | 45 | Significant | Poor | 1959 | Recreation |
| Cinnamon Lake Dam | Ohio | Ashland | 45 | High | Fair | 1970 | Recreation |
| Rush Creek Structure No. 1-B | Ohio | Perry | 45 | High | Fair | 1975 | Flood Risk Reduction |
| Four Eagles Lake Dam | Ohio | Preble | 45 | High | Satisfactory | 1959 | Recreation |
| Lake Shawnee Dam | Ohio | Greene | 45 | High | Fair | 1963 | Recreation |
| Del-Co Upland Storage Reservoir No. 5 | Ohio | Delaware | 45 | High | Fair | 2004 | Water Supply |
| Clear Fork Reservoir Dam | Ohio | Richland | 44 | High | Poor | 1949 | Water Supply |
| Nimisila Reservoir Dam | Ohio | Summit | 44 | High | Poor | 1936 | Water Supply |
| Happy Hills Lake Dam | Ohio | Hocking | 44 | Significant | Poor | 1954 | Recreation |
| Savannah Wwtp Lagoons | Ohio | Ashland | 44 | Significant | Satisfactory | 1996 | Debris Control |
| Red Hill Farm Dam No. 3 | Ohio | Guernsey | 44 | Significant | Satisfactory | 1994 | 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.