Grass Lake Dam
Key Takeaway
Grass Lake Dam is classified as low hazard in Michigan. It was completed in 1951 and is 75 years old. Its primary use is recreation.
Physical Details
| Dam Height | 8 ft (taller than 7.3% in MI) |
| Dam Length | 176 ft |
| Dam Type | Gravity |
| Max Storage | 5.2K acre-ft |
| Normal Storage | 675 acre-ft |
| Surface Area | 482 acres |
| Drainage Area | 78 sq mi |
| Max Discharge | 1,600 cfs |
| Year Completed | 1951 (75 years old) |
| NID ID | MI00527 |
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
MDNR Wildlife
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Grass Lake Dam?
Grass Lake 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 Grass Lake Dam?
Grass Lake Dam is owned by MDNR Wildlife (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Grass Lake Dam built?
Grass Lake Dam was completed in 1951, making it 75 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 Grass Lake Dam?
Grass 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 Grass Lake Dam?
Grass Lake Dam has a dam height of 8 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 Grass Lake Dam last inspected?
Grass Lake Dam was last inspected on October 28, 2014. Inspection dates indicate when a formal review occurred, not the results of that inspection.