General Motors Dam
Key Takeaway
General Motors Dam is classified as low hazard in Michigan. It was completed in 1926 and is 100 years old. Its primary use is recreation.
Physical Details
| Dam Height | 13 ft (taller than 39.7% in MI) |
| Dam Length | 380 ft |
| Dam Type | Arch |
| Max Storage | 420 acre-ft |
| Normal Storage | 360 acre-ft |
| Surface Area | 69 acres |
| Drainage Area | 13 sq mi |
| Max Discharge | 1,400 cfs |
| Year Completed | 1926 (100 years old) |
| NID ID | MI00599 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
General Motors Corporation
Private
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What is the hazard classification of General Motors Dam?
General Motors Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates General Motors Dam?
General Motors Dam is owned by General Motors Corporation (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was General Motors Dam built?
General Motors Dam was completed in 1926, making it 100 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of General Motors Dam?
General Motors Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is General Motors Dam?
General Motors Dam has a dam height of 13 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 Dam last inspected?
General Motors Dam was last inspected on October 8, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.