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 426–450 of 564
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Roberts Lake Dam Clinton County | 19 | — | Significant | Poor |
| Rod Lake Dam Jefferson County | 41 | 1949 | Significant | Poor |
| Roemer Lake Dam Warren County | 52 | 1960 | Significant | Satisfactory |
| Rogers Lake Dam Morrow County | 14 | 1900 | Significant | Fair |
| Rohr Dam Carroll County | 18 | 1973 | Significant | Fair |
| Roundup Lake Dam Portage County | 12 | 1949 | Significant | Poor |
| Rouster Lake Dam Clermont County | 20 | 1947 | Significant | Satisfactory |
| 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 |
| Royal Oak Lake Dam Meigs County | 34 | 1964 | Significant | Satisfactory |
| Runkle Farm Pond Dam Champaign County | 22 | 2001 | Significant | Fair |
| Rushcreek Structure No. Iii-B Perry County | 38 | 1968 | Significant | Satisfactory |
| Rushcreek Structure No. Iii-E Perry County | 42 | 1986 | Significant | Satisfactory |
| Rushcreek Structure No. Iv-A Perry County | 26 | 1979 | Significant | Satisfactory |
| Rushcreek Structure No. Iv-E Perry County | 29 | 1979 | Significant | Satisfactory |
| Rushcreek Structure No. V-A Fairfield County | 27 | 1970 | Significant | Fair |
| Rushcreek Structure No. V-B Fairfield County | 32 | 1971 | Significant | Satisfactory |
| Rushcreek Structure No. Vi-F Fairfield County | 33 | 1987 | Significant | Satisfactory |
| Rushcreek Structure No. Vii-C Fairfield County | 36 | 1976 | Significant | Satisfactory |
| Rushcreek Structure No. Vii-D Fairfield County | 32 | 1972 | Significant | Fair |
| Russellville Wwt Lagoon Basin #1 Brown County | 13 | 1999 | Significant | Fair |
| Russellville Wwt Lagoon Basin #2 Brown County | 12 | 1999 | Significant | Fair |
| Rustic Acres Lake Dam Ross County | 26 | 1974 | Significant | Poor |
| Rutledge Lake Dam Tuscarawas County | 32 | 1951 | Significant | Fair |
| Salem Regional Campus Lake Dam Columbiana County | 26 | 1977 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.