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 276–300 of 564
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lake Noah Dam Summit County | 31 | 1938 | Significant | Satisfactory |
| Lake Otto Dam Licking County | 25 | 1959 | Significant | Poor |
| Lake Peniel Dam Morrow County | 17 | 1975 | Significant | Fair |
| Lake P'Na Dam Columbiana County | 17 | 1948 | Significant | Poor |
| Lake Quincy Dam Portage County | 18 | — | Significant | Fair |
| Lake Rice Dam Hocking County | 32 | 1967 | Significant | Fair |
| Lake Royal Dam Ross County | 34 | 1975 | Significant | Satisfactory |
| Lake Sue Dam Williams County | 23 | — | Significant | Poor |
| Lake Sylvan Dam Clark County | 21 | 1947 | Significant | Poor |
| Lakeview Dam Muskingum County | 15 | 1959 | Significant | Fair |
| Lake Wapusun Dam Wayne County | 34 | 1969 | Significant | Poor |
| Lake Waynoka Retention Dam Brown County | 32 | 1973 | Significant | Satisfactory |
| Lake Waynoka Upground Reservoir Brown County | 23 | 1973 | Significant | Satisfactory |
| Lakota Lake Dam Butler County | 58 | 1960 | Significant | Poor |
| Lamping Dam Monroe County | 27 | 1967 | Significant | Not Rated |
| Larue Wastewater Treatment Lagoon Marion County | 10 | 2001 | Significant | Satisfactory |
| Laurel Lake Dam Morrow County | 20 | 1955 | Significant | Poor |
| Laycock Farm Pond No. 1 Dam Adams County | 41 | 1945 | Significant | Poor |
| Leatherwood Lake Dam Guernsey County | 12 | 1972 | Significant | Satisfactory |
| Leeth Lake Dam Ross County | 42 | 1965 | Significant | Poor |
| Lenox Lakes Dam Ashtabula County | 28 | 1969 | Significant | Fair |
| Letha House Lake Dam Medina County | 24 | 2001 | Significant | Fair |
| Libertyvale Lake Dam Delaware County | 14 | — | Significant | Fair |
| Lima Upground Reservoir Allen County | 25 | 1903 | Significant | Poor |
| Lincoln Estates Lake Dam Medina County | 17 | — | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.