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 51–75 of 501
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Thompson Lake Dam Mahoning County | 14 | — | Significant | Poor |
| Thomas Lake Dam Trumbull County | 15 | 1973 | Significant | Poor |
| Thomas Lake Dam Perry County | 27 | — | Undetermined | Poor |
| The Van Dyke Club Lake Dam Clark County | 16 | 1948 | Low | Poor |
| The Lake of Jules Dam Knox County | 19 | — | Significant | Poor |
| The Farm Lake Dam Tuscarawas County | 35 | 1951 | Low | Poor |
| The Baltic Sportsman Lake Dam Tuscarawas County | 19 | 1957 | High | Poor |
| Terry Thompson Dam Pickaway County | 27 | 1995 | Significant | Poor |
| Terraco Lake Dam Medina County | 20 | — | Significant | Poor |
| Tennessee Gas Station 214 Lake Dam Carroll County | 22 | 1950 | Low | Poor |
| Tennessee Gas Station 209 Lake Dam Guernsey County | 18 | 1951 | Significant | Poor |
| Tecumseh Lake Dam Perry County | 25 | 1954 | Significant | Poor |
| Tara Lake Dam Greene County | 20 | 1969 | Significant | Poor |
| Tanager Woods Lake Dam Hamilton County | 19 | — | Significant | Poor |
| Tall Timber Lake Dam Tuscarawas County | 26 | 1960 | Low | Poor |
| Sycamore Creek Lake Dam Warren County | 33 | — | Low | Poor |
| Swiger Pond Dam Ashland County | 27 | 1965 | Low | Poor |
| Swift Run Lake Dam Miami County | 39 | 1876 | Significant | Poor |
| Swan Lake Dam Summit County | 20 | 1995 | High | Poor |
| Sun Valley Lake Dam Ross County | 20 | 1955 | Low | Poor |
| Sunshine Lakes Dam Columbiana County | 38 | — | Significant | Poor |
| Sunnyhill Freshwater Reservoir Dam Perry County | 45 | 1959 | Significant | Poor |
| Summitville Lake Dam Columbiana County | 26 | 1940 | Significant | Poor |
| Summitcrest Farm Pond Dam Columbiana County | 39 | 1960 | Significant | Poor |
| Strader Lake Dam Clermont County | 51 | 1954 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.