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 101–125 of 564
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Shugert Lane Dam Guernsey County | 25 | — | Significant | Satisfactory |
| Shore Lake Dam Champaign County | 18 | 1964 | Significant | Poor |
| Shangri-La Ski Club Lake Dam Geauga County | 25 | 1956 | Significant | Poor |
| Shady Grove Dam Jackson County | 16 | 1962 | Significant | Fair |
| Shadow Lake Dam Monroe County | 27 | — | Significant | Poor |
| Sevakeen Country Club Lake Dam Columbiana County | 17 | 1925 | Significant | Poor |
| Seleski Lake No. 2 Dam Harrison County | 39 | 1963 | Significant | Poor |
| Sedimentation Pond No. 1 Dam Clermont County | 28 | 2000 | Significant | Poor |
| Scioto County Sludge Lagoon Scioto County | 46 | 1980 | Significant | Fair |
| Schrock Lake Dam Franklin County | 10 | 1965 | Significant | Fair |
| Savannah Wwtp Lagoons Ashland County | 44 | 1996 | Significant | Satisfactory |
| Sand Run Dam Hocking County | 25 | 1964 | Significant | Not Rated |
| Sammis Station North Bottom Ash Pond Dam Jefferson County | 21 | — | Significant | Satisfactory |
| Samanna Dam Warren County | 24 | 1992 | Significant | Fair |
| Salem Regional Campus Lake Dam Columbiana County | 26 | 1977 | Significant | Satisfactory |
| Rutledge Lake Dam Tuscarawas County | 32 | 1951 | Significant | Fair |
| Rustic Acres Lake Dam Ross County | 26 | 1974 | Significant | Poor |
| Russellville Wwt Lagoon Basin #2 Brown County | 12 | 1999 | Significant | Fair |
| Russellville Wwt Lagoon Basin #1 Brown County | 13 | 1999 | Significant | Fair |
| Rushcreek Structure No. Vii-D Fairfield County | 32 | 1972 | Significant | Fair |
| Rushcreek Structure No. Vii-C Fairfield County | 36 | 1976 | Significant | Satisfactory |
| Rushcreek Structure No. Vi-F Fairfield County | 33 | 1987 | Significant | Satisfactory |
| Rushcreek Structure No. V-B Fairfield County | 32 | 1971 | Significant | Satisfactory |
| Rushcreek Structure No. V-A Fairfield County | 27 | 1970 | Significant | Fair |
| Rushcreek Structure No. Iv-E Perry County | 29 | 1979 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.