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 376–400 of 421
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Bucyrus Upground Reservoir No. 4 Crawford County | 29 | 1983 | High | Fair |
| Bucyrus Reservoir No. 3 Dam Crawford County | 32 | 1955 | High | Fair |
| Bristol Lake Dam Clermont County | 13 | 1954 | Significant | Fair |
| Bresler Upground Reservoir Allen County | 38 | 1970 | High | Fair |
| Boreman Lake Dam Wayne County | 19 | 1971 | Low | Fair |
| Blue Heron Lake No. 5 Dam Medina County | 19 | — | High | Fair |
| Blue Heron Lake No. 1 Dam Medina County | 28 | — | High | Fair |
| Blend Lake Dam Stark County | 23 | — | Significant | Fair |
| Blanchester Res No. 6 Dam Clinton County | 24 | 2003 | High | 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 |
| Big T Ranch Lake Dam Ashland County | 25 | 1963 | Low | Fair |
| Big Rock Lake Dam Columbiana County | 32 | 1963 | Low | Fair |
| Big Bass Lake Dam Huron County | 31 | 1965 | Low | Fair |
| Berkshire Lake Dam Delaware County | 28 | 1967 | Low | Fair |
| Bel-Wood Country Club Lake No. 2 Dam Warren County | 47 | 1965 | Significant | Fair |
| Bellevue Upground Reservoir No. 5 Huron County | 28 | 1946 | Significant | Fair |
| Beckjord Ash Pond C Ext. Dam Clermont County | 40 | 1985 | Significant | Fair |
| Beaver Lake Dam Columbiana County | 18 | 1917 | Significant | Fair |
| Beaver Creek Upground Reservoir Seneca County | 34 | 1971 | High | Fair |
| Bear Creek Lake Dam Scioto County | 26 | 1935 | High | Fair |
| Barnesville Reservoir No. 1 Dam Belmont County | 42 | 1904 | High | Fair |
| Baptist Foundation Lake Dam Clinton County | 36 | 1972 | Significant | Fair |
| Baker Lake Dam Medina County | 19 | 1965 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.