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 451–475 of 501
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Bowers Lake Estate Dam Jefferson County | 15 | 1960 | Significant | Poor |
| Boka Woods Lake No. 1 Dam Fairfield County | 26 | 1965 | Significant | Poor |
| Bloomingdale South Lake Dam Jefferson County | 19 | — | Low | Poor |
| Bloomingdale North Lake Dam Jefferson County | 33 | 1975 | Significant | Poor |
| Blanchester Reservoir No. 3 Dam Clinton County | 15 | 1934 | High | Poor |
| Bilinovich Recreation Area Lake Dam Summit County | 28 | 1963 | Low | Poor |
| Bilinovich Lake Dam Guernsey County | 57 | 1992 | Significant | Poor |
| Big Pine Lake Dam Crawford County | 28 | 1959 | Low | Poor |
| Big Island Wetland Dam Marion County | 9 | 1995 | Significant | Poor |
| Big Bear Lake Dam Scioto County | 37 | 1972 | High | Poor |
| Bibbee'S Little Rock Lake Dam Columbiana County | 27 | 1960 | High | Poor |
| Bethesda Sportsmans Club Pond Dam Belmont County | 22 | 1958 | Low | Poor |
| Bethel Upground Reservoir No. 2 Clermont County | 23 | 1991 | Significant | Poor |
| Bethel Upground Reservoir No. 1 Clermont County | 25 | 1960 | Low | Poor |
| Belmont Lake Dam Belmont County | 67 | 1961 | High | Poor |
| Belmont Hills Country Club Lake Dam Belmont County | 21 | 1940 | High | Poor |
| Bellwood Lake Dam Geauga County | 27 | 1960 | Significant | Poor |
| Bell Lake Dam Logan County | 13 | 1967 | Low | Poor |
| Bell Lake Dam Summit County | 27 | 1965 | Low | Poor |
| Bellevue Upground Reservoir No. 4 Huron County | 18 | 1919 | High | Poor |
| Bellevue Upground Reservoir No. 3 Huron County | 18 | 1900 | High | Poor |
| Bellevue Upground Reservoir No. 1 Huron County | 14 | 1874 | High | Poor |
| Bella Luna Lake Dam No. 1 Geauga County | 22 | — | Significant | Poor |
| Bayberry Cove Development Dam Greene County | 15 | 1979 | Significant | Poor |
| Battles Pond Dam Hardin County | 17 | 1952 | Low | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.