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 1251–1275 of 1,377
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Turkey Creek Lake Dam Scioto County | 54 | 1966 | High | Poor |
| Turner-Jordan Lake Dam Stark County | 8 | 1980 | Low | Satisfactory |
| Turon Lake Dam Trumbull County | 19 | 1954 | Significant | Poor |
| Tuscarawas River Diversion Dam Summit County | 26 | 1956 | High | Satisfactory |
| Twelve Pack Lake Dam Tuscarawas County | 28 | 1985 | Low | Poor |
| Twin Lakes Upper Dam Franklin County | 25 | 1927 | Significant | Poor |
| Two Mile Dam Butler County | 10 | — | Undetermined | Not Rated |
| Tycoon Lake Dam Gallia County | 29 | 1961 | High | Poor |
| Uke Ranch Lake Dam Ashland County | 29 | 1968 | Significant | Fair |
| Ukrainian American Youth Lake Dam Lorain County | 29 | 1965 | Low | Poor |
| University School Lake Dam Cuyahoga County | 53 | 1968 | Significant | Poor |
| Upper Girard Lake Dam Trumbull County | 55 | 1929 | High | Poor |
| Upper Lake Milton Dam Jackson County | 29 | — | Undetermined | Not Rated |
| Upper Sandusky Reservoir #2 Wyandot County | 25 | 2005 | Significant | Satisfactory |
| Upper Sandusky Reservoir Dam Wyandot County | 31 | 1957 | Significant | Poor |
| Upper Shaker Lake Dam Cuyahoga County | 30 | 1852 | High | Unsatisfactory |
| Upper Wabash Structure No. 2 Mercer County | 17 | 1963 | Low | Fair |
| Upper Wabash Structure No. 3 Dam Mercer County | 28 | 1963 | High | Satisfactory |
| Upper Woodsfield Reservoir Dam Monroe County | 31 | — | Significant | Poor |
| Uss/Kobe Lake Dam Lorain County | 15 | — | Significant | Satisfactory |
| Usx Corporation Low Head Dam Mahoning County | 10 | — | Undetermined | Not Rated |
| Valley Vista Golf Course Lake Dam Ross County | 27 | 1966 | Low | Fair |
| Van Buren Lake Dam Hancock County | 23 | 1939 | Significant | Poor |
| Vancamp Pond Dam Pickaway County | 31 | 1955 | Undetermined | Not Rated |
| Van Wert Upground Reservoir No. 1 Van Wert County | 22 | 1949 | High | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.