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 201–225 of 339
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Metamora Upground Reservoir Fulton County | 11 | 1986 | Low | Satisfactory |
| Minerva Park Lake Dam Franklin County | 19 | 1890 | Low | Satisfactory |
| Mirror Lake Dam Licking County | 17 | — | Low | Fair |
| Mirror Lake Dam Medina County | 26 | 1950 | Low | Fair |
| Modern Tool & Die Company Reservoir Dam Medina County | 31 | 1967 | Low | Poor |
| Monroe Basin Dam Muskingum County | 14 | — | Low | Poor |
| Moore Lake Dam Coshocton County | 16 | 1975 | Low | Fair |
| Munroe Falls Park Lake Dam Summit County | 26 | 1937 | Low | Fair |
| Muskingum Valley Council Lake Dam Coshocton County | 25 | 1974 | Low | Fair |
| Myers Pond Dam Belmont County | 28 | 1966 | Low | Poor |
| Mystic Lake Dam Greene County | 12 | 1950 | Low | Poor |
| Newbridge Farms Pond Dam Warren County | 40 | — | Low | Fair |
| Noe Lake Dam Brown County | 27 | 1971 | Low | Fair |
| North Park Cdf Facility Berm 2-3 Lake County | 33 | 2021 | Low | Satisfactory |
| Oberlin Old Upground Reservoir Lorain County | 17 | 1960 | Low | Fair |
| O'Brien Lake Dam Ashtabula County | 24 | 1968 | Low | Poor |
| Ockenga Lake Dam Huron County | 29 | 1966 | Low | Poor |
| Ohio Power Company Pond Dam Mum-100 Muskingum County | 15 | — | Low | Fair |
| Ohio Power Company Pond Mb-115 Dam Morgan County | 38 | 1967 | Low | Fair |
| Ohio Power Company Pond Mb-141 Dam Morgan County | 38 | 1968 | Low | Fair |
| Ohio Power Company Pond Mb-144 Pond Morgan County | 30 | 1968 | Low | Fair |
| Ohio Power Company Pond Mum-67 Muskingum County | 36 | — | Low | Poor |
| Ohio Power Company Pond Nb-64 Dam Noble County | 38 | 1962 | Low | Fair |
| Ohio River Collieries Sediment Pond Dam Guernsey County | 26 | 1979 | Low | Fair |
| Olivito Lake Dam Carroll County | 32 | 1973 | Low | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.