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 301–324 of 324
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Brown & Haskins Lake Dam Ross County | 27 | 1967 | High | Satisfactory |
| Brookside Country Club Lake Dam Franklin County | 28 | — | Low | Satisfactory |
| Briar Hill Lake Dam Cuyahoga County | 24 | 1913 | High | Satisfactory |
| Boy Scout Dam Carroll County | 53 | 1984 | Significant | Satisfactory |
| Bowling Green Upground Res & Sludge Lgns Wood County | 22 | 1989 | High | Satisfactory |
| Blue Rock Lake Dam Muskingum County | 31 | 1937 | High | Satisfactory |
| Bidwell/Porter Wwt Lagoon Gallia County | 18 | 1999 | Significant | Satisfactory |
| Bethesda Reservoir Dam Belmont County | 30 | 1959 | High | Satisfactory |
| Bethany Lake Dam Holmes County | 29 | 1962 | High | Satisfactory |
| Beck Pond Dam Stark County | 25 | 2000 | Significant | Satisfactory |
| Beckjord Ash Pond C Dam Clermont County | 50 | — | Significant | Satisfactory |
| Beckjord Ash Pond B Clermont County | 46 | — | Significant | Satisfactory |
| Bear Town Lake Dam Geauga County | 21 | 1960 | Low | Satisfactory |
| Basich Lake Dam Jefferson County | 38 | 1963 | High | Satisfactory |
| Barhorst Lake Dam Shelby County | 33 | 1970 | Significant | Satisfactory |
| Bailey Lake Dam Ashland County | 15 | — | Significant | Satisfactory |
| Auglaize River Wwt Lagoon Defiance County | 12 | 2011 | Significant | Satisfactory |
| Auglaize Hydro Defiance County | 25 | 1913 | Low | Satisfactory |
| Anjecondy Lake Dam Knox County | 29 | 1950 | Significant | Satisfactory |
| Allegheny West Conference Cg Lake Dam Fairfield County | 33 | 1950 | Low | Satisfactory |
| Akita Lake Dam Hocking County | 29 | — | Low | Satisfactory |
| Ahrens Lake Dam Richland County | 34 | 1976 | Significant | Satisfactory |
| Acton Lake Dam Butler County | 62 | 1956 | High | Satisfactory |
| Aberdeen Development North Retention Dam Cuyahoga County | 13 | 1997 | Significant | Satisfactory |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.