Rushmore Lake Level Control Structure
Key Takeaway
Rushmore Lake Level Control Structure is classified as low hazard in Michigan. It was completed in 1975 and is 51 years old. Its primary use is recreation.
Physical Details
| Dam Height | 8 ft (taller than 7.3% in MI) |
| Dam Length | 3,200 ft |
| Dam Type | Earth |
| Max Storage | 185 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 39 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1975 (51 years old) |
| NID ID | MI00945 |
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
Ottawa County Drain Commissioner
Private
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What is the hazard classification of Rushmore Lake Level Control Structure?
Rushmore Lake Level Control Structure 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 Rushmore Lake Level Control Structure?
Rushmore Lake Level Control Structure is owned by Ottawa County Drain Commissioner (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rushmore Lake Level Control Structure built?
Rushmore Lake Level Control Structure was completed in 1975, making it 51 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 Rushmore Lake Level Control Structure?
Rushmore Lake Level Control Structure 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 Rushmore Lake Level Control Structure?
Rushmore Lake Level Control Structure 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 Rushmore Lake Level Control Structure last inspected?
Rushmore Lake Level Control Structure was last inspected on December 11, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.