Dams in Ottawa County, Ohio
2Total Dams
0High Hazard
2Significant
Dam Safety in Ottawa County, Ohio
Ottawa County has 2 dams tracked in the National Inventory of Dams. Another 2 carry a significant hazard classification.
The average dam in Ottawa County is 54 years old. The most common purpose is tailings. The tallest dam is Graymont Sludge Lagoons at 18 ft.
Explore more: Oldest dams in Ohio · Tallest dams · High risk dams · Largest reservoirs
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Graymont Sludge Lagoons | Significant | Fair | 18 | Tailings | 1981 |
| Genoa Ug Sewage Disposal Lgn Cells 1,2,3&4 | Significant | Satisfactory | 10 | Tailings | 1963 |