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 176–200 of 501
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Muskingum River Lock and Dam No. 8 Morgan County | 20 | 1841 | Significant | Poor |
| Muskingum River Lock and Dam No. 7 Morgan County | 15 | 1841 | Significant | Poor |
| Muskingum River Lock and Dam No. 5 Washington County | 20 | 1841 | Significant | Poor |
| Muskingum River Lock and Dam No. 4 Washington County | 17 | 1841 | Significant | Poor |
| Muskingum River Lock and Dam No. 3 Washington County | 18 | 1841 | Significant | Poor |
| Muskingum River Lock and Dam No. 10 Muskingum County | 12 | 1841 | Significant | Poor |
| Muskingum College Lake Dam Muskingum County | 28 | 1935 | High | Poor |
| Mowrer Lake Dam Wayne County | 9 | 1961 | Significant | Poor |
| Morelli Pond Dam Stark County | 19 | — | Significant | Poor |
| Monroe Basin Dam Muskingum County | 14 | — | Low | Poor |
| Moll Lake Dam Medina County | 32 | 1940 | Significant | Poor |
| Mogadore Reservoir Dam Portage County | 36 | 1938 | High | Poor |
| Modern Tool & Die Company Reservoir Dam Medina County | 31 | 1967 | Low | Poor |
| Mingo Sportsman Club Pond Dam Jefferson County | 49 | 1969 | Significant | Poor |
| Miner Pond Dam Portage County | 24 | 1967 | Significant | Poor |
| Mineral Ridge Dam Trumbull County | 60 | 1932 | High | Poor |
| Mills Lake Dam Licking County | 25 | 1965 | Significant | Poor |
| Mill Pond Lake Dam Columbiana County | 22 | 1952 | Significant | Poor |
| Mike Lake Dam Mahoning County | 11 | 1958 | Significant | Poor |
| Memory Lake Dam Tuscarawas County | 27 | — | Significant | Poor |
| Meadowbrook Lake Dam Summit County | 16 | 1920 | Significant | Poor |
| Mcclintock Lake Dam Allen County | 14 | 1982 | Significant | Poor |
| Marshfield Lake Dam Cuyahoga County | 15 | 1940 | Significant | Poor |
| Marko Lake Dam Stark County | 22 | 1962 | Significant | Poor |
| Margaret Creek Structure No. 6 Athens County | 42 | 1967 | High | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.