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 1226–1250 of 1,377
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Terry Thompson Dam Pickaway County | 27 | 1995 | Significant | Poor |
| The Baltic Sportsman Lake Dam Tuscarawas County | 19 | 1957 | High | Poor |
| The Farm Lake Dam Tuscarawas County | 35 | 1951 | Low | Poor |
| The Lake of Jules Dam Knox County | 19 | — | Significant | Poor |
| The Ohio Valley Coal Slurry Disposal Dam Belmont County | 275 | 1981 | High | Not Rated |
| The Shire Lake Dam Jackson County | 27 | 1963 | Significant | Fair |
| The Van Dyke Club Lake Dam Clark County | 16 | 1948 | Low | Poor |
| The Wilderness Lower Lake Dam Stark County | 22 | 1966 | Low | Satisfactory |
| Thomas Lake Dam Trumbull County | 15 | 1973 | Significant | Poor |
| Thomas Lake Dam Perry County | 27 | — | Undetermined | Poor |
| Thompson Lake Dam Mahoning County | 14 | — | Significant | Poor |
| Thompson Lake Dam Ashland County | 16 | 1972 | Significant | Poor |
| Thoreau Pond Dam Franklin County | 25 | 1964 | High | Satisfactory |
| Thor Lake Dam Preble County | 39 | 1970 | Low | Fair |
| Timberlake No. 1 Dam Franklin County | 48 | — | Significant | Satisfactory |
| Timbre Ridge Dam Lawrence County | 69 | 1974 | High | Not Rated |
| Timken Lake Dam Stark County | 17 | 1962 | Significant | Poor |
| Tom Jenkins Dam Athens County | 84 | 1950 | High | Not Available |
| Torok Pond Dam Medina County | 35 | 1958 | Low | Poor |
| Trail Lake Dam Portage County | 12 | — | Low | Poor |
| Traska Fwi Dam Noble County | 27 | — | Low | Satisfactory |
| Troy Low Head Dam Miami County | 10 | — | Significant | Satisfactory |
| Trumbull Creek Wetland Berm No. 7 Geauga County | 12 | 2002 | Significant | Fair |
| Tubaugh Lake Dam Monroe County | 27 | 1965 | Low | Poor |
| Tucaway Lake Dam Portage County | 25 | 1973 | High | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.