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 226–250 of 339
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Hance Lake Dam Knox County | 28 | 1991 | Low | Fair |
| Hammond Lake Ii Dam Columbiana County | 17 | 1951 | Low | Poor |
| Hammond Lake Dam Pike County | 28 | — | Low | Poor |
| Hammerhead Lake Dam Warren County | 14 | 1955 | Low | Satisfactory |
| Hamilton Small Diversion Butler County | 8 | 1920 | Low | Satisfactory |
| Hamilton Fairfield Airport Dam Butler County | 16 | 1995 | Low | Fair |
| Halls Lake Dam Preble County | 13 | 1935 | Low | Poor |
| Gund Pond No. 2 Dam Summit County | 26 | 1970 | Low | Poor |
| Gund Pond No. 1 Dam Summit County | 36 | 1970 | Low | Poor |
| Grubb Lake Dam Licking County | 21 | 1974 | Low | Poor |
| Grogg Lake Dam Richland County | 17 | 2001 | Low | Fair |
| Grenke Lake Dam Ashtabula County | 16 | — | Low | Poor |
| Green Lake Dam Logan County | 25 | 2002 | Low | Satisfactory |
| Greene Co. Fish & Game Pond No. 1 Dam Greene County | 28 | 1954 | Low | Fair |
| Greenbriar Lake Dam Butler County | 38 | 1958 | Low | Poor |
| Goose Creek Dam Preble County | 29 | 1993 | Low | Satisfactory |
| Gonzalez Lake Dam Stark County | 13 | 1995 | Low | Fair |
| Golden Bear Reservoir Dam Delaware County | 26 | 1972 | Low | Poor |
| Gerding Lake Dam Medina County | 30 | — | Low | Fair |
| Georgetown Upper Pond No. 2 Dam Harrison County | 22 | 1978 | Low | Poor |
| George'S Pond Dam Vinton County | 30 | 1960 | Low | Fair |
| Galicki Lake Dam Ashtabula County | 22 | 1973 | Low | Fair |
| Frohring Lake Dam Geauga County | 18 | 1957 | Low | Poor |
| Fritz Pond Dam Columbiana County | 26 | 1974 | Low | Poor |
| Foxlair Farms Lake Dam Pickaway County | 27 | 1955 | Low | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.