Fish Lake (Pondera)
Key Takeaway
Fish Lake (Pondera) is classified as low hazard in Montana. It was completed in 1960 and is 66 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 25 ft (taller than 70.3% in MT) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 292 acre-ft |
| Normal Storage | 173 acre-ft |
| Drainage Area | 2 sq mi |
| Max Discharge | 50 cfs |
| Year Completed | 1960 (66 years old) |
| NID ID | MT03739 |
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
WILLIAM/LOIS JONES
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Fish Lake (Pondera)?
Fish Lake (Pondera) 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 Fish Lake (Pondera)?
Fish Lake (Pondera) is owned by WILLIAM/LOIS JONES (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Fish Lake (Pondera) built?
Fish Lake (Pondera) was completed in 1960, making it 66 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 Fish Lake (Pondera)?
Fish Lake (Pondera) serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Fish Lake (Pondera)?
Fish Lake (Pondera) has a dam height of 25 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.