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 1051–1075 of 1,377
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Echo Lake Dam Miami County | 14 | 1876 | High | Poor |
| East Reservoir Dam Summit County | 25 | 1840 | High | Satisfactory |
| East Palestine Reservoir Dam Columbiana County | 18 | — | Significant | Poor |
| East Fork Buck Creek Structure Iv-A Champaign County | 39 | 1966 | Significant | Fair |
| East Fork Buck Creek Structure Iii-A Champaign County | 35 | 1966 | Significant | Fair |
| East Fork Buck Creek Structure Ii-B Champaign County | 26 | 1966 | Significant | Fair |
| East Fork Buck Creek Structure I-B Champaign County | 38 | 1966 | Significant | Poor |
| Eastern Ag Research Station Dam Noble County | 32 | 1965 | Low | Fair |
| East Candlewood Lake Dam Wood County | 18 | 1962 | Significant | Poor |
| East Branch Reservoir Dam Geauga County | 34 | 1939 | High | Poor |
| East Branch Black River Dam No. 2 Lorain County | 15 | — | Significant | Poor |
| Eagles Lake Dam Williams County | 16 | 1966 | Low | Fair |
| Eagles Lake Dam Hamilton County | 30 | 1988 | Significant | Satisfactory |
| Dush Lake Dam Wayne County | 13 | 1975 | Low | Poor |
| Dunn Lake Dam Carroll County | 25 | 1963 | Low | Satisfactory |
| Dunlap Lake No. 1 Dam Pickaway County | 21 | 1954 | Undetermined | Not Rated |
| Dow Lake Dam Athens County | 66 | 1959 | High | Fair |
| Dover Dam Tuscarawas County | 83 | 1938 | High | Not Available |
| Dorothy Mine Pond Dam Jefferson County | 48 | 1950 | Significant | Fair |
| Donta Lake Dam Jackson County | 42 | 1965 | Significant | Poor |
| Donley Lake Dam Fairfield County | 19 | 1967 | Low | Fair |
| Dominick Lofino Park Lake Dam Greene County | 30 | 1990 | High | Fair |
| Dogwood Valley Camp Lake Dam Morrow County | 26 | 1956 | Undetermined | Not Rated |
| 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.