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 1076–1100 of 1,377
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Rustic Hills Lake Dam Medina County | 30 | 1961 | High | Satisfactory |
| Rustic Lake Dam Lorain County | 21 | 1964 | Low | Satisfactory |
| Rutledge Lake Dam Tuscarawas County | 32 | 1951 | Significant | Fair |
| Salem Regional Campus Lake Dam Columbiana County | 26 | 1977 | Significant | Satisfactory |
| 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 |
| Salt Fork Lake Dam Guernsey County | 61 | 1968 | High | Fair |
| Samanna Dam Warren County | 24 | 1992 | Significant | Fair |
| Sammis Station North Bottom Ash Pond Dam Jefferson County | 21 | — | Significant | Satisfactory |
| Sand Run Dam Hocking County | 25 | 1964 | Significant | Not Rated |
| Sands Hill Slurry Impoundment Dam Vinton County | 131 | 1992 | High | Not Rated |
| Sandy Ridge Wetland Dam Lorain County | 14 | 1997 | Low | Poor |
| San Toy Dam Perry County | 21 | 1916 | High | Poor |
| Sardinia Reservoir Dam Brown County | 26 | 1953 | Undetermined | Not Rated |
| Sauer Lake Dam Trumbull County | 14 | 1955 | Low | Poor |
| Savannah Wwtp Lagoons Ashland County | 44 | 1996 | Significant | Satisfactory |
| Schafer Lake Dam Noble County | 33 | 1962 | Low | Fair |
| Schloss Pond Dam Geauga County | 36 | 1952 | High | Poor |
| Schmidt Lake Dam Medina County | 20 | — | Low | Fair |
| Schoonover Lake Dam Allen County | 17 | 1890 | Low | Satisfactory |
| Schrock Lake Dam Franklin County | 10 | 1965 | Significant | Fair |
| Schultz Lake Dam Portage County | 15 | 1932 | Low | Poor |
| Scio Pottery Lake Dam Harrison County | 31 | — | Low | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.