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 76–100 of 324
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| East Reservoir Dam Summit County | 25 | 1840 | High | Satisfactory |
| Echo Valley Lake Dam Lorain County | 39 | 1999 | Low | Satisfactory |
| Edison Wwt Lagoon Morrow County | 10 | 2000 | Significant | Satisfactory |
| Ella Street Low Head Dam Seneca County | 9 | — | Significant | Satisfactory |
| Equinus (Legendary Run) Lake Dam Clermont County | 45 | 2001 | High | Satisfactory |
| Eramet Waste Retention Dam Washington County | 118 | 1982 | High | Satisfactory |
| Fairfield Detention "A" Dam Butler County | 24 | 1997 | High | Satisfactory |
| Fairfield Detention "C" Dam Butler County | 31 | 1998 | High | Satisfactory |
| Fairgreens Golf Club Dam Jackson County | 20 | 1973 | Significant | Satisfactory |
| Fawn Lake Dam Shelby County | 20 | 1985 | Low | Satisfactory |
| Fieldstone Lake Dam Stark County | 35 | 2001 | Significant | Satisfactory |
| Fish Bones Lake Dam Monroe County | 51 | 2003 | Significant | Satisfactory |
| Forbidden Lake Dam Union County | 13 | 1998 | Low | Satisfactory |
| Fort Jennings Wwt Lagoon Putnam County | 15 | 2002 | Significant | Satisfactory |
| Fortney Lake Dam Pickaway County | 15 | 1960 | Low | Satisfactory |
| Foster'S Lake Dam Harrison County | 26 | 1960 | Low | Satisfactory |
| Four Eagles Lake Dam Preble County | 45 | 1959 | High | Satisfactory |
| Four Mile Creek Site 10 Preble County | 17 | 2000 | Significant | Satisfactory |
| Four Mile Creek Site 14 Dam Preble County | 22 | 1998 | Low | Satisfactory |
| Four Mile Creek Site 15 Dam Preble County | 23 | 1997 | Low | Satisfactory |
| Four Mile Creek Site 9b Dam Preble County | 29 | 1995 | Low | Satisfactory |
| Fremont Upground Reservoir Sandusky County | 34 | 2012 | High | Satisfactory |
| Gavin Bottom Ash Pond Gallia County | 26 | 1974 | High | Satisfactory |
| Genoa Ug Sewage Disposal Lgn Cells 1,2,3&4 Ottawa County | 10 | 1963 | Significant | Satisfactory |
| Genon Energy North Pond Dam Trumbull County | 20 | 1955 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.