Thread Lake Dam
Key Takeaway
Thread Lake Dam is classified as significant hazard in Michigan. It was completed in 1973 and is 53 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 9 ft (taller than 14.1% in MI) |
| Dam Length | 293 ft |
| Dam Type | Gravity |
| Max Storage | 1.3K acre-ft |
| Normal Storage | 320 acre-ft |
| Surface Area | 80 acres |
| Drainage Area | 58 sq mi |
| Max Discharge | 2,256 cfs |
| Year Completed | 1973 (53 years old) |
| NID ID | MI00063 |
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
City of Flint
Local Government
Nearby Dams
Hamilton Dam
Genesee, MI
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High Hazard 38 ftFrequently Asked Questions
What is the hazard classification of Thread Lake Dam?
Thread Lake Dam 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 Thread Lake Dam?
Thread Lake Dam is owned by City of Flint (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Thread Lake Dam built?
Thread Lake Dam was completed in 1973, making it 53 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 Thread Lake Dam?
Thread Lake 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 Thread Lake Dam?
Thread Lake Dam has a dam height of 9 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 Thread Lake Dam last inspected?
Thread Lake Dam was last inspected on October 1, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.