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 726–750 of 1,377
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Laycock Farm Pond No. 1 Dam Adams County | 41 | 1945 | Significant | Poor |
| Laycock Farm Pond No. 2 Dam Adams County | 37 | — | Undetermined | Not Rated |
| Leatherwood Lake Dam Guernsey County | 12 | 1972 | Significant | Satisfactory |
| Ledge Lake Dam Medina County | 38 | 1965 | Low | Satisfactory |
| Leesville Dam Carroll County | 74 | 1937 | High | Not Available |
| Leeth Lake Dam Ross County | 42 | 1965 | Significant | Poor |
| Lenox Lakes Dam Ashtabula County | 28 | 1969 | Significant | Fair |
| Letha House Lake Dam Medina County | 24 | 2001 | Significant | Fair |
| Lewis Lake Dam Scioto County | 40 | 1990 | Low | Not Rated |
| Lexington Glen Dam Delaware County | 23 | 1990 | High | Satisfactory |
| Liberty Street Dam Trumbull County | 12 | 1831 | Undetermined | Not Rated |
| Libertyvale Lake Dam Delaware County | 14 | — | Significant | Fair |
| Liggett Lake No. 1 Dam Union County | 19 | 1968 | Low | Poor |
| Lilley Lake Dam Warren County | 43 | 1954 | High | Poor |
| Lima Upground Reservoir Allen County | 25 | 1903 | Significant | Poor |
| Limpert Lower Lake Dam Ashtabula County | 20 | 1963 | Low | Poor |
| Lincoln Estates Lake Dam Medina County | 17 | — | Significant | Satisfactory |
| Lincoln Heights Upground Reservoir Hamilton County | 30 | 1942 | High | Fair |
| Lindenwood Lake Dam Medina County | 30 | 1958 | Significant | Satisfactory |
| Lindon Lake Dam Ashtabula County | 27 | 1961 | Low | Fair |
| Little Mountain Dam "A" Lake County | 46 | — | Significant | Poor |
| Livezey Lake Dam Belmont County | 33 | 1975 | Low | Satisfactory |
| Lockington Dam Shelby County | 78 | 1922 | High | Fair |
| Loecy Pond Dam Geauga County | 23 | — | High | Satisfactory |
| Long Lake Dam Summit County | 12 | 1936 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.