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 276–300 of 501
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Jm Stuart Station Ash Pond No. 5 Adams County | 41 | — | Significant | Poor |
| Jisco Lake Dam Jackson County | 56 | 1952 | High | Poor |
| Jeffco Pond Dam No. 21 Harrison County | 41 | — | Significant | Poor |
| Jeffco Pond Dam Harrison County | 35 | — | Low | Poor |
| Jacobs Lake Dam Ashland County | 26 | 1962 | Significant | Poor |
| Jackson Lake Dam Jackson County | 28 | — | Significant | Poor |
| Izaak Walton Lake Dam Lawrence County | 31 | — | High | Poor |
| International Animal Preserve Pond Dam #8 Muskingum County | 41 | 1962 | Significant | Poor |
| International Animal Preserve Pond Dam #7 Muskingum County | 34 | 1961 | Low | Poor |
| International Animal Preserve Pond Dam #65 Muskingum County | 43 | — | Significant | Poor |
| International Animal Preserve Pond Dam #49 Muskingum County | 22 | — | Low | Poor |
| International Animal Preserve Pond Dam #37 Muskingum County | 13 | 1976 | Low | Poor |
| International Animal Preserve Pond Dam #35 Muskingum County | 38 | 1975 | Significant | Poor |
| International Animal Preserve Pond Dam #2 Muskingum County | 50 | 1959 | Significant | Poor |
| International Animal Preserve Pond Dam Muskingum County | 51 | — | Significant | Poor |
| International Animal Preserve Dam 9715-009 Muskingum County | 38 | 1972 | Low | Poor |
| Indian Trail Campground Lake Dam Huron County | 26 | 1969 | Low | Poor |
| Indian Lakes Rec. Area Upper Lake Dam Guernsey County | 19 | 1962 | Significant | Poor |
| Indian Lakes Rec. Area Lower Lake Dam Guernsey County | 19 | 1962 | High | Poor |
| Indian Lake Dam Logan County | 16 | 1852 | High | Poor |
| Indian Canoe Lake Dam Portage County | 28 | 1958 | Low | Poor |
| Independence Dam Defiance County | 12 | 1924 | Significant | Poor |
| Imars Lake Dam Medina County | 22 | 1966 | Significant | Poor |
| Hunters Run Structure R-42 Fairfield County | 24 | 1959 | High | Poor |
| Hunters Run Structure No. R-63 Fairfield County | 30 | 1961 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.