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 401–425 of 501
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Shadow Lake Dam Monroe County | 27 | — | Significant | Poor |
| Shady Hollow Pond Dam Stark County | 14 | — | Low | Poor |
| Shangri-La Ski Club Lake Dam Geauga County | 25 | 1956 | Significant | Poor |
| Shelton Lake Dam Perry County | 26 | 1974 | Low | Poor |
| Sherwood Forrest Campgrounds Lake Dam Medina County | 33 | — | Low | Poor |
| Shore Lake Dam Champaign County | 18 | 1964 | Significant | Poor |
| Sili Lake Dam Ashtabula County | 15 | 1972 | Low | Poor |
| Simco-Peabody Sediment Pond No. 28 Dam Muskingum County | 26 | 1984 | Significant | Poor |
| Slates Lake Dam Columbiana County | 28 | 1967 | Significant | Poor |
| Snyder'S Horse Farm Pond Dam Tuscarawas County | 25 | 1961 | Low | Poor |
| Somerset Reservoir Dam Perry County | 35 | 1941 | Significant | Poor |
| Southern Silica Pond No. 2 Dam Ross County | 38 | 1956 | High | Poor |
| Sparrow Reservoir Dam Harrison County | 33 | 1949 | Low | Poor |
| Spring Haven Lake Dam Carroll County | 26 | — | Low | Poor |
| Spring Valley Lake Dam Columbiana County | 14 | — | Low | Poor |
| Spring Valley Park Lake Dam Columbiana County | 29 | 1993 | High | Poor |
| Springwater Park Lake Dam Portage County | 22 | 1945 | Significant | Poor |
| Stanley Lower Lake Dam Carroll County | 25 | 1933 | Significant | Poor |
| Stanley Upper Lake Dam Carroll County | 37 | 1933 | Significant | Poor |
| Stark Lime Sludge Lagoon Stark County | 34 | — | Significant | Poor |
| Star Lite Lake Dam Fayette County | 25 | — | Low | Poor |
| Stevens Lake Dam Harrison County | 39 | 1963 | High | Poor |
| St. John Vianney Seminary Lake Dam Jefferson County | 17 | 1942 | Low | Poor |
| Stoll Lake Dam Wayne County | 26 | 1956 | Low | Poor |
| Stony Lake Dam Carroll County | 18 | 1928 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.