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 501–525 of 564
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Cadiz Country Club Pond Dam Harrison County | 45 | 1968 | Significant | Fair |
| Burtonville Lake Dam Clinton County | 25 | 1972 | Significant | Fair |
| Burnap Lake Dam Warren County | 38 | 1969 | Significant | Fair |
| Burgess Lake Dam Mahoning County | 27 | 1915 | Significant | Poor |
| Buffalo Hills Lake Dam Noble County | 15 | 1973 | Significant | Poor |
| Brushy Fork No. 7 Dam Harrison County | 47 | 1950 | Significant | Poor |
| Brown Lake Dam Geauga County | 23 | 1968 | Significant | Satisfactory |
| Broken Aro Slurry Pond No. 1 Dam Coshocton County | 49 | 1962 | Significant | Poor |
| Bristol Lake Dam Clermont County | 13 | 1954 | Significant | Fair |
| Bredenbeck Lake Dam Ashland County | 18 | 1969 | Significant | Poor |
| Branjarzak Lake Dam Clermont County | 25 | — | Significant | Poor |
| Boy Scout Dam Carroll County | 53 | 1984 | Significant | Satisfactory |
| Bowers Lake Estate Dam Jefferson County | 15 | 1960 | Significant | Poor |
| Boka Woods Lake No. 1 Dam Fairfield County | 26 | 1965 | Significant | Poor |
| Bloomingdale North Lake Dam Jefferson County | 33 | 1975 | Significant | Poor |
| Blend Lake Dam Stark County | 23 | — | Significant | Fair |
| Blanchester Reservoirs No. 1 & 2 Dam Clinton County | 10 | 1924 | Significant | Fair |
| Blanchester Reservoir No. 5 Dam Clinton County | 14 | 1970 | Significant | Fair |
| Blacklidge Lake Dam Logan County | 27 | 1972 | Significant | Fair |
| Bilinovich Lake Dam Guernsey County | 57 | 1992 | Significant | Poor |
| Big Island Wetland Dam Marion County | 9 | 1995 | Significant | Poor |
| Bidwell/Porter Wwt Lagoon Gallia County | 18 | 1999 | Significant | Satisfactory |
| Bethel Upground Reservoir No. 2 Clermont County | 23 | 1991 | Significant | Poor |
| Bel-Wood Country Club Lake No. 2 Dam Warren County | 47 | 1965 | Significant | Fair |
| Bellwood Lake Dam Geauga County | 27 | 1960 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.