Armstrong No 2 Dam
Key Takeaway
Armstrong No 2 Dam is classified as low hazard in Michigan. It was completed in 1954 and is 72 years old. Its primary use is recreation.
Physical Details
| Dam Height | 12 ft (taller than 32.7% in MI) |
| Dam Length | 490 ft |
| Dam Type | Earth |
| Max Storage | 430 acre-ft |
| Normal Storage | 160 acre-ft |
| Surface Area | 33 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 120 cfs |
| Year Completed | 1954 (72 years old) |
| NID ID | MI00493 |
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
Nathaniel Armstrong
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Armstrong No 2 Dam?
Armstrong No 2 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 Armstrong No 2 Dam?
Armstrong No 2 Dam is owned by Nathaniel Armstrong (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Armstrong No 2 Dam built?
Armstrong No 2 Dam was completed in 1954, making it 72 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 Armstrong No 2 Dam?
Armstrong No 2 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 Armstrong No 2 Dam?
Armstrong No 2 Dam has a dam height of 12 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 Armstrong No 2 Dam last inspected?
Armstrong No 2 Dam was last inspected on January 1, 1901. Inspection dates indicate when a formal review occurred, not the results of that inspection.