Herrin Lake
Key Takeaway
Herrin Lake is classified as low hazard in Montana. It was completed in 1949 and is 77 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 15 ft (taller than 18.8% in MT) |
| Dam Length | 100 ft |
| Dam Type | Earth |
| Max Storage | 69 acre-ft |
| Normal Storage | 36 acre-ft |
| Year Completed | 1949 (77 years old) |
| NID ID | MT03683 |
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
STATE OF MONTANA, D.N.R.C., T.L.M.D.
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Herrin Lake?
Herrin Lake 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 Herrin Lake?
Herrin Lake is owned by STATE OF MONTANA, D.N.R.C., T.L.M.D. (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Herrin Lake built?
Herrin Lake was completed in 1949, making it 77 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 Herrin Lake?
Herrin Lake serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Herrin Lake?
Herrin Lake has a dam height of 15 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.