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 276–300 of 339
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Dillon Wetland Mitigation Dam Muskingum County | 7 | 2000 | Low | Fair |
| Diebel Lake Dam Hamilton County | 30 | 1980 | Low | Poor |
| Dickey Lake Dam Columbiana County | 14 | 1945 | Low | Poor |
| Dews Pond Dam Carroll County | 12 | 1972 | Low | Poor |
| Devils Den Park Lake No. 2 Dam Tuscarawas County | 29 | — | Low | Poor |
| Deer Lake Estates Dam Geauga County | 20 | 1992 | Low | Fair |
| Dayton Airport Detention Pond Dam Montgomery County | 13 | 1981 | Low | Satisfactory |
| Darke Co. Wildlife Area Pond No. 5 Dam Darke County | 26 | 1966 | Low | Unsatisfactory |
| Crystal Lake Dam Ashtabula County | 11 | 1930 | Low | Poor |
| Crum Lake Dam Fairfield County | 21 | 2006 | Low | Satisfactory |
| Crooksville Reservoir No. 3 Dam Perry County | 36 | 1956 | Low | Fair |
| Corning Lake Dam Lake County | 12 | — | Low | Satisfactory |
| Coppedge Lake Dam Trumbull County | 30 | — | Low | Satisfactory |
| Cooper Pond Dam Stark County | 24 | 1971 | Low | Poor |
| Comstock Pond Dam Morgan County | 22 | 1962 | Low | Poor |
| Columbus Southern Power Company Dam Ma-11 Muskingum County | 25 | — | Low | Poor |
| Colebrook Lake No. 1 Dam Portage County | 17 | 1966 | Low | Fair |
| Coldstream Country Club Dam No. 1 Hamilton County | 33 | 1971 | Low | Fair |
| Clear Creek Lake Dam Shelby County | 21 | — | Low | Poor |
| Clay'S Park Lake Dam Stark County | 15 | 1955 | Low | Poor |
| Classicway Farm Lake Dam Warren County | 18 | — | Low | Poor |
| Clark Lake No. 2 Dam Pickaway County | 40 | — | Low | Poor |
| Clague Park Lake Dam Cuyahoga County | 20 | 1994 | Low | Satisfactory |
| Chestnut Ridge Lake Dam Trumbull County | 11 | — | Low | Poor |
| Charolais Lake Dam Gallia County | 31 | 1975 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.