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 126–150 of 564
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Donta Lake Dam Jackson County | 42 | 1965 | Significant | Poor |
| Dorothy Mine Pond Dam Jefferson County | 48 | 1950 | Significant | Fair |
| Eagles Lake Dam Hamilton County | 30 | 1988 | Significant | Satisfactory |
| East Branch Black River Dam No. 2 Lorain County | 15 | — | Significant | Poor |
| East Candlewood Lake Dam Wood County | 18 | 1962 | Significant | Poor |
| East Fork Buck Creek Structure I-B Champaign County | 38 | 1966 | Significant | Poor |
| East Fork Buck Creek Structure Ii-B Champaign County | 26 | 1966 | Significant | Fair |
| East Fork Buck Creek Structure Iii-A Champaign County | 35 | 1966 | Significant | Fair |
| East Fork Buck Creek Structure Iv-A Champaign County | 39 | 1966 | Significant | Fair |
| East Palestine Reservoir Dam Columbiana County | 18 | — | Significant | Poor |
| Edison Wwt Lagoon Morrow County | 10 | 2000 | Significant | Satisfactory |
| Elk Creek Meadow Ridge Pond #1 Dam Butler County | 26 | 1970 | Significant | Fair |
| Elk Creek Meadow Ridge Pond #2 Dam Butler County | 23 | 1970 | Significant | Fair |
| Elkem Fluid Waste Pond 3a Ashtabula County | 40 | 1967 | Significant | Fair |
| Elkem Sludge Holding Pond 5c Dam Ashtabula County | 20 | 1988 | Significant | Fair |
| Elks Country Club Lake Dam Scioto County | 28 | 1966 | Significant | Poor |
| Ella Street Low Head Dam Seneca County | 9 | — | Significant | Satisfactory |
| Ellis Lake Dam Wyandot County | 22 | 1961 | Significant | Poor |
| Ellis Lake No. 2 Dam Wyandot County | 25 | 1955 | Significant | Fair |
| Epworth Park Lake Dam Belmont County | 15 | — | Significant | Poor |
| Eramet Fluid Waste Pond 1a Washington County | 35 | 1975 | Significant | Poor |
| Eramet Slag Tailings Pond Washington County | 25 | 1975 | Significant | Poor |
| Evergreen Lake Dam Lucas County | 20 | 1955 | Significant | Fair |
| Fairgreens Golf Club Dam Jackson County | 20 | 1973 | Significant | Satisfactory |
| Faith Ranch Lake Dam Harrison County | 28 | 1950 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.