Green Lake Dam
Key Takeaway
Green Lake Dam is classified as low hazard in Montana. It was completed in 1939 and is 87 years old.
Physical Details
| Dam Height | 13 ft (taller than 14.7% in MT) |
| Max Storage | 962 acre-ft |
| Normal Storage | 453 acre-ft |
| Year Completed | 1939 (87 years old) |
| NID ID | MT00516 |
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
Not Listed
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Green Lake Dam?
Green 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 Green Lake Dam?
Green Lake Dam is owned by information not available (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Green Lake Dam built?
Green Lake Dam was completed in 1939, making it 87 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
How tall is Green Lake Dam?
Green Lake 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.