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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
No. 2 Slurry Pond Ohio Belmont 300 High Not Available — Water Supply
The Ohio Valley Coal Slurry Disposal Dam Ohio Belmont 275 High Not Rated 1981 Tailings
Cardinal Fly Ash No. 2 Dam Ohio Jefferson 250 High Satisfactory 2014 Tailings
Cardinal Fly Ash No. 1 Dam Ohio Jefferson 242 High Satisfactory 1974 Tailings
William H. Harsha Dam Ohio Clermont 205 High Not Available 1973 Flood Risk Reduction
Caesar Creek Dam - Saddle Dike 3 Ohio Warren 180 High Not Available 1976 Flood Risk Reduction
Caesar Creek Dam - Saddle Dike 2 Ohio Warren 180 High Not Available 1976 Flood Risk Reduction
Caesar Creek Dam Ohio Warren 180 High Not Available 1976 Flood Risk Reduction
Muskingum River Upper Fly Ash Dam Ohio Washington 152 High Fair 1975 Tailings
Marge Schott Lake Dam Ohio Clermont 140 High Satisfactory 2000 Recreation
Meigs Mine No. 1 Slurry Impoundment Ohio Meigs 131 High Not Rated — Tailings
Sands Hill Slurry Impoundment Dam Ohio Vinton 131 High Not Rated 1992 Tailings
Englewood Dam Ohio Montgomery 121 High Fair 1922 Flood Risk Reduction
Eramet Waste Retention Dam Ohio Washington 118 High Satisfactory 1982 Tailings
Dillon Dam Ohio Muskingum 118 High Not Available 1960 Flood Risk Reduction
Paint Creek Dam Ohio Highland 118 High Not Available 1973 Flood Risk Reduction
Pleasant Hill Dam Ohio Ashland 113 High Not Available 1937 Flood Risk Reduction
Mohawk Dam Ohio Coshocton 111 High Not Available 1937 Flood Risk Reduction
Germantown Dam Ohio Montgomery 107 High Fair 1922 Flood Risk Reduction
West Fork of Mill Creek Dam Ohio Hamilton 106 High Not Available 1952 Flood Risk Reduction
Muskingum River Middle Fly Ash Dam Ohio Washington 100 High Satisfactory 1968 Tailings
Refuse Imp. (Sands Hill Reservoir) Ohio Vinton 100 High Not Available — Tailings
Clarence J. Brown Dam Ohio Clark 98 High Not Available 1973 Flood Risk Reduction
Berlin Dam Ohio Mahoning 96 High Not Available 1943 Flood Risk Reduction
Friendship Park Lake Dam Ohio Jefferson 94 High Fair 1972 Recreation
Stingy Run Fly Ash Dam Ohio Gallia 93 High Satisfactory 1974 Tailings
Deer Creek Dam Ohio Pickaway 93 High Not Available 1968 Flood Risk Reduction
Alum Creek Dam Ohio Delaware 93 High Not Available 1974 Flood Risk Reduction
Delaware Dam Ohio Delaware 92 High Not Available 1951 Flood Risk Reduction
Apple Valley Lake Dam Ohio Knox 91 High Poor 1971 Recreation
Shaker Run Dam Ohio Warren 90 High Fair 1973 Recreation
Lakeview Cemetery Flood Control Dam Ohio Cuyahoga 89 High Fair 1978 Flood Risk Reduction
Wills Creek Dam Ohio Coshocton 87 High Not Available 1936 Flood Risk Reduction
Bolivar Dam Ohio Stark 87 High Not Available 1938 Flood Risk Reduction
Hoover Dam Ohio Franklin 86 High Fair 1956 Water Supply
Tom Jenkins Dam Ohio Athens 84 High Not Available 1950 Flood Risk Reduction
Killen Station Ash Disposal Dike Ohio Adams 84 High Fair 1982 Tailings
Michael J. Kirwan Dam Ohio Portage 83 High Not Available 1966 Flood Risk Reduction
Dover Dam Ohio Tuscarawas 83 High Not Available 1938 Flood Risk Reduction
O'Shaughnessy Ohio Delaware 79 High Satisfactory 1924 Water Supply
Taylorsville Dam Ohio Montgomery 78 High Fair 1922 Flood Risk Reduction
Lockington Dam Ohio Shelby 78 High Fair 1922 Flood Risk Reduction
Mckelvey Lake Dam Ohio Mahoning 77 High Fair 1926 Water Supply
Barnesville Reservoir No. 3 Dam Ohio Belmont 77 High Poor 1965 Water Supply
Wolf Run Lake Dam Ohio Noble 76 High Satisfactory 1966 Flood Risk Reduction
Hunters Run Structure No. 9 Ohio Fairfield 76 High Fair 1959 Flood Risk Reduction
Muskingum River Lower Fly Ash Dam Ohio Washington 75 High Fair 1968 Tailings
Caldwell Lake Dam Ohio Noble 75 High Fair 1969 Flood Risk Reduction
Rocky Fork Lake Dam Ohio Highland 74 High Poor 1952 Recreation
Lake Lakengren Dam Ohio Preble 74 High Poor 1970 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.