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 251–275 of 339
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Four Mile Creek Site 9b Dam Preble County | 29 | 1995 | Low | Satisfactory |
| Four Mile Creek Site 15 Dam Preble County | 23 | 1997 | Low | Satisfactory |
| Four Mile Creek Site 14 Dam Preble County | 22 | 1998 | Low | Satisfactory |
| Foster'S Lake Dam Harrison County | 26 | 1960 | Low | Satisfactory |
| Forty Acre Pond Dam Auglaize County | 15 | 1840 | Low | Poor |
| Fortney Lake Dam Pickaway County | 15 | 1960 | Low | Satisfactory |
| Forest Lake Dam Medina County | 30 | 1973 | Low | Poor |
| Forbidden Lake Dam Union County | 13 | 1998 | Low | Satisfactory |
| Fish Lake Dam Adams County | 27 | 1971 | Low | Fair |
| Fischer Lower Lake Dam Ashtabula County | 14 | — | Low | Poor |
| Firelands Lake No. 1 Dam Lorain County | 14 | 1966 | Low | Fair |
| Fawn Lake Dam Shelby County | 20 | 1985 | Low | Satisfactory |
| Fallsville Wildlife Area Dam Highland County | 28 | 1963 | Low | Fair |
| Erdos Lake Dam Wayne County | 15 | 1983 | Low | Poor |
| Ellis Lake Dam Clinton County | 31 | 1986 | Low | Fair |
| Elk Lake Dam Warren County | 20 | 1964 | Low | Fair |
| Eldon Reservoir Dam Guernsey County | 38 | 1933 | Low | Poor |
| Echo Valley Lake Dam Lorain County | 39 | 1999 | Low | Satisfactory |
| Eastern Ag Research Station Dam Noble County | 32 | 1965 | Low | Fair |
| Eagles Lake Dam Williams County | 16 | 1966 | Low | Fair |
| Dush Lake Dam Wayne County | 13 | 1975 | Low | Poor |
| Dunn Lake Dam Carroll County | 25 | 1963 | Low | Satisfactory |
| Donley Lake Dam Fairfield County | 19 | 1967 | Low | Fair |
| Dogwood Lake Dam Licking County | 38 | 1968 | Low | Satisfactory |
| Dogwood Lake Dam Fairfield County | 36 | 1960 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.