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 226–250 of 397
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Kiser Lake Dam Champaign County | 25 | 1939 | High | Fair |
| Kinskey Lake Dam Scioto County | 35 | 1969 | High | Satisfactory |
| Killen Station Ash Disposal Dike Adams County | 84 | 1982 | High | Fair |
| Kerruish Stormwater Control Facility Dam Cuyahoga County | 40 | 1954 | High | Satisfactory |
| Julian Griggs Dam Franklin County | 52 | 1905 | High | Fair |
| John R. Doutt Upground Reservoir Delaware County | 46 | 2014 | High | Fair |
| Jisco Lake Dam Jackson County | 56 | 1952 | High | Poor |
| Jefferson Lake Dam Jefferson County | 26 | 1934 | High | Satisfactory |
| Jackson Lake Dam Jackson County | 23 | 1939 | High | Fair |
| Izaak Walton Lake Dam Lawrence County | 31 | — | High | Poor |
| International Animal Preserve Pond Dam #10 Muskingum County | 68 | 1976 | High | Fair |
| Indian Lakes Rec. Area Lower Lake Dam Guernsey County | 19 | 1962 | High | Poor |
| Indian Lake Dam Logan County | 16 | 1852 | High | Poor |
| Hunters Run Structure R-42 Fairfield County | 24 | 1959 | High | Poor |
| Hunters Run Structure No. 9 Fairfield County | 76 | 1959 | High | Fair |
| Hunters Run Structure No. 8 Fairfield County | 53 | 1959 | High | Satisfactory |
| Hunters Run Structure No. 6 Fairfield County | 25 | 1961 | High | Fair |
| Hunters Run Structure No. 4 Fairfield County | 51 | 1960 | High | Fair |
| Hunters Run Structure No. 3 Fairfield County | 27 | 1960 | High | Poor |
| Hunters Run Structure No. 1 Fairfield County | 41 | 1955 | High | Fair |
| Huffman Dam Greene County | 73 | 1922 | High | Fair |
| Howard Farm Dam Lucas County | 18 | 2018 | High | Satisfactory |
| Horace Troop Pond Dam Delaware County | 21 | 1956 | High | Poor |
| Hoover Dam Franklin County | 86 | 1956 | High | Fair |
| Hoose Road Retention Dam Lake County | 22 | 1993 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.