Dams in Marion County, Ohio
3Total Dams
1High Hazard
2Significant
Dam Safety in Marion County, Ohio
Marion County has 3 dams tracked in the National Inventory of Dams. Of these, 1 are classified as high hazard — meaning failure would probably cause loss of human life. Another 2 carry a significant hazard classification. Currently, 1 dams have a condition assessment of poor or unsatisfactory.
The average dam in Marion County is 44 years old. The most common purpose is tailings. The tallest dam is Delaware Dam - Waldo Levee at 30 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 |
|---|---|---|---|---|---|
| Delaware Dam - Waldo Levee | High | Not Available | 30 | Flood Risk Reduction | 1948 |
| Larue Wastewater Treatment Lagoon | Significant | Satisfactory | 10 | Tailings | 2001 |
| Big Island Wetland Dam | Significant | Poor | 9 | Recreation | 1995 |