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 101–125 of 339
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Possum Creek Reserve Lake Dam Montgomery County | 20 | 1979 | Low | Satisfactory |
| Pintail Pond Dam Trumbull County | 8 | 1968 | Low | Fair |
| Peterson Lake Dam Stark County | 17 | 1954 | Low | Poor |
| Perry Reclamation Dam No. 2 Perry County | 27 | — | Low | Poor |
| Paw Paw Lake Dam Geauga County | 15 | 1920 | Low | Poor |
| Paulmeadows Lake Dam Hamilton County | 32 | 1965 | Low | Fair |
| Parker Pond Dam Belmont County | 32 | 2014 | Low | Satisfactory |
| Parker Lakes Lower Dam Clark County | 19 | 2004 | Low | Poor |
| Paradise Lakes Campground Lake Dam Trumbull County | 22 | 1958 | Low | Poor |
| Pancake Lake Dam Summit County | 20 | 1965 | Low | Fair |
| Paint Creek Dam - Little Pond Dam Highland County | 30 | 1973 | Low | Not Available |
| Oxbow Lake Dam Defiance County | 18 | 1953 | Low | Poor |
| Orrville Farmer'S & Sportsmen'S League Dam Wayne County | 16 | — | Low | Poor |
| O'Neill Lake Dam Cuyahoga County | 28 | — | Low | Poor |
| Olivito Lake Dam Carroll County | 32 | 1973 | Low | Poor |
| Ohio River Collieries Sediment Pond Dam Guernsey County | 26 | 1979 | Low | Fair |
| Ohio Power Company Pond Nb-64 Dam Noble County | 38 | 1962 | Low | Fair |
| Ohio Power Company Pond Mum-67 Muskingum County | 36 | — | Low | Poor |
| Ohio Power Company Pond Mb-144 Pond Morgan County | 30 | 1968 | Low | Fair |
| Ohio Power Company Pond Mb-141 Dam Morgan County | 38 | 1968 | Low | Fair |
| Ohio Power Company Pond Mb-115 Dam Morgan County | 38 | 1967 | Low | Fair |
| Ohio Power Company Pond Dam Mum-100 Muskingum County | 15 | — | Low | Fair |
| Ockenga Lake Dam Huron County | 29 | 1966 | Low | Poor |
| O'Brien Lake Dam Ashtabula County | 24 | 1968 | Low | Poor |
| Oberlin Old Upground Reservoir Lorain County | 17 | 1960 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.