General Motors Secondary Lagoon
Key Takeaway
General Motors Secondary Lagoon is classified as significant hazard in Ohio. Its primary use is tailings. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 29 ft (taller than 58% in OH) |
| Dam Length | 3,300 ft |
| Dam Type | Earth |
| Max Storage | 368 acre-ft |
| Normal Storage | 300 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 784 cfs |
| NID ID | OH01504 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
GM Defiance Casting Operations
Private
Nearby Dams
General Motors Primary Lagoon
Defiance, OH
Significant Hazard 30 ftKettenring Hills Lake Dam
Defiance, OH
Low Hazard 30 ftIndependence Dam
Defiance, OH
Significant Hazard 12 ftCamp Lakota Boy Scout Lake Dam
Defiance, OH
Low Hazard 15 ftDefiance Upground Reservoir
Defiance, OH
High Hazard 24 ftHickory Lake Dam
Defiance, OH
Significant Hazard 26 ftAuglaize Hydro
Defiance, OH
Low Hazard 23 ftOxbow Lake Dam
Defiance, OH
Low Hazard 18 ftFrequently Asked Questions
What is the hazard classification of General Motors Secondary Lagoon?
General Motors Secondary Lagoon is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates General Motors Secondary Lagoon?
General Motors Secondary Lagoon is owned by GM Defiance Casting Operations (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of General Motors Secondary Lagoon?
General Motors Secondary Lagoon serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is General Motors Secondary Lagoon?
General Motors Secondary Lagoon has a dam height of 29 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was General Motors Secondary Lagoon last inspected?
General Motors Secondary Lagoon was last inspected on April 26, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.