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 376–400 of 501
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Roberts Lake Dam Clinton County | 19 | — | Significant | Poor |
| Rocky Fork Lake Dam Highland County | 74 | 1952 | High | Poor |
| Rod Lake Dam Jefferson County | 41 | 1949 | Significant | Poor |
| Rogers Lake Dam Stark County | 13 | — | Low | Poor |
| Rohr'S Lake Dam Ashland County | 22 | 1971 | Low | Poor |
| Ross Lake Dam Ross County | 48 | 1967 | High | Poor |
| Roundup Lake Dam Portage County | 12 | 1949 | Significant | Poor |
| Royal Oak Golf Course Pond No. 1 Dam Clermont County | 27 | 1964 | Significant | Poor |
| Royal Oak Golf Course Pond No. 2 Dam Clermont County | 39 | 1966 | Significant | Poor |
| Russellville Reservoir Dam Brown County | 39 | 1963 | Low | Poor |
| Rustic Acres Lake Dam Ross County | 26 | 1974 | Significant | Poor |
| Salem Reservoir (South Embankment) Columbiana County | 48 | 1952 | High | Poor |
| Sally Buffalo Park Lake Dam Harrison County | 37 | 1953 | High | Poor |
| Sally Buffalo Park Lake No. 2 Dam Harrison County | 13 | 1953 | High | Poor |
| Sally Buffalo Park Lake No. 4 Dam Harrison County | 18 | 1953 | High | Poor |
| Sandy Ridge Wetland Dam Lorain County | 14 | 1997 | Low | Poor |
| San Toy Dam Perry County | 21 | 1916 | High | Poor |
| Sauer Lake Dam Trumbull County | 14 | 1955 | Low | Poor |
| Schloss Pond Dam Geauga County | 36 | 1952 | High | Poor |
| Schultz Lake Dam Portage County | 15 | 1932 | Low | Poor |
| Scio Pottery Lake Dam Harrison County | 31 | — | Low | Poor |
| Sedimentation Pond No. 1 Dam Clermont County | 28 | 2000 | Significant | Poor |
| Seleski Lake No. 2 Dam Harrison County | 39 | 1963 | Significant | Poor |
| Sevakeen Country Club Lake Dam Columbiana County | 17 | 1925 | Significant | Poor |
| Seven Springs Lake Dam Medina County | 40 | 1961 | High | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.