Deep Coulee
Key Takeaway
Deep Coulee is classified as low hazard in Montana. It was completed in 1971 and is 55 years old. Its primary use is water supply.
Physical Details
| Dam Height | 25 ft (taller than 70.3% in MT) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 35 acre-ft |
| Normal Storage | 21 acre-ft |
| Year Completed | 1971 (55 years old) |
| NID ID | MT00810 |
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
CLARA BUMP
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Deep Coulee?
Deep Coulee 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 Deep Coulee?
Deep Coulee is owned by CLARA BUMP (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Deep Coulee built?
Deep Coulee was completed in 1971, making it 55 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 Deep Coulee?
Deep Coulee serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Deep Coulee?
Deep Coulee 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.