Ohio Dams
1,377 dams tracked by the National Inventory of Dams
Total Dams
1,377
High Hazard
397
28.8%
Poor / Unsatisfactory
509
Average Age
65 yrs
Hazard Classification
High397 (28.8%)
Significant564 (41.0%)
Low339 (24.6%)
Condition Assessment
Satisfactory324 (23.5%)
Fair421 (30.6%)
Poor / Unsatisfactory509 (37.0%)
Not Rated123 (8.9%)
Federal
39
State
115
Local
356
Private
753
Tallest Dams
High Hazard Dams
Poor Condition Dams
All Dams in Ohio
Showing 226–250 of 421
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lake Hodgson Dam Portage County | 25 | 1843 | Significant | Fair |
| Lake Hill Lodge Dam Delaware County | 14 | 1962 | Significant | Fair |
| Lake Haven Dam Medina County | 26 | 1982 | High | Fair |
| Lake Glacier Dam Mahoning County | 24 | 1905 | Low | Fair |
| Lake Emma Dam Scioto County | 27 | 1987 | High | Fair |
| Lake Eagle Claw Dam Hocking County | 54 | 1962 | Significant | Fair |
| Lake Dorothy Dam Summit County | 36 | 1929 | High | Fair |
| Lake Buckhorn Dam Holmes County | 65 | 1967 | High | Fair |
| Lake Arrowhead Dam Hocking County | 29 | — | Significant | Fair |
| Lake `A' Dam Williams County | 31 | 1966 | Low | Fair |
| Kyger Creek Tailings Pond Gallia County | 32 | 1955 | Significant | Fair |
| Kyger Creek Bottom Ash Pond Gallia County | 41 | 1955 | Significant | Fair |
| Kreis Dam Hamilton County | 37 | 1936 | High | Fair |
| Knoles Pond Dam Ross County | 28 | 1965 | Significant | Fair |
| Kiser Lake Dam Champaign County | 25 | 1939 | High | Fair |
| Killen Station Ash Disposal Dike Adams County | 84 | 1982 | High | Fair |
| Kettenring Hills Lake Dam Defiance County | 30 | 1976 | Low | Fair |
| Karr Lake Dam Meigs County | 33 | 1974 | Low | Fair |
| Julian Griggs Dam Franklin County | 52 | 1905 | High | Fair |
| Johnson Lake Dam Guernsey County | 12 | 1976 | Low | Fair |
| John R. Doutt Upground Reservoir Delaware County | 46 | 2014 | High | Fair |
| Jeans Lake Dam Medina County | 23 | 1952 | Low | Fair |
| J.E. Annahannah Lake Dam Jackson County | 26 | 1963 | Low | Fair |
| Jackson Lake Dam Jackson County | 23 | 1939 | High | Fair |
| Ismond Pond Dam Columbiana County | 27 | 1957 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.