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 326–350 of 421
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Rushcreek Structure No. Ii Perry County | 31 | 1985 | High | Fair |
| Rushcreek Structure No. Iii-A Perry County | 34 | 1969 | High | Fair |
| Rushcreek Structure No. Iv-C Perry County | 29 | 1976 | High | Fair |
| Rushcreek Structure No. V-A Fairfield County | 27 | 1970 | Significant | Fair |
| Rushcreek Structure No. V-C Fairfield County | 36 | 1969 | High | Fair |
| Rushcreek Structure No. Vi-A Fairfield County | 58 | 1982 | High | Fair |
| Rushcreek Structure No. Vii-D Fairfield County | 32 | 1972 | Significant | Fair |
| Rushcreek Structure No. Vii-E Fairfield County | 28 | 1967 | High | Fair |
| Rush Run Lake Dam Preble County | 53 | 1970 | High | Fair |
| Russellville Wwt Lagoon Basin #1 Brown County | 13 | 1999 | Significant | Fair |
| Russellville Wwt Lagoon Basin #2 Brown County | 12 | 1999 | Significant | Fair |
| Rutledge Lake Dam Tuscarawas County | 32 | 1951 | Significant | Fair |
| Salt Fork Lake Dam Guernsey County | 61 | 1968 | High | Fair |
| Samanna Dam Warren County | 24 | 1992 | Significant | Fair |
| Schafer Lake Dam Noble County | 33 | 1962 | Low | Fair |
| Schmidt Lake Dam Medina County | 20 | — | Low | Fair |
| Schrock Lake Dam Franklin County | 10 | 1965 | Significant | Fair |
| Scioto County Sludge Lagoon Scioto County | 46 | 1980 | Significant | Fair |
| Scioto Hills Baptist Camp Lake Dam Scioto County | 33 | 1950 | Low | Fair |
| Shady Grove Dam Jackson County | 16 | 1962 | Significant | Fair |
| Shaker Run Dam Warren County | 90 | 1973 | High | Fair |
| Sharon Golf Club Lake Dam Medina County | 15 | 1960 | Low | Fair |
| Sharonville Retention Dam Hamilton County | 46 | 1967 | High | Fair |
| Shelby Upground Reservoir No. 2 Richland County | 48 | 1955 | High | Fair |
| Shelby Upground Reservoir No. 3 Richland County | 28 | 1993 | High | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.