Kootenai Dvlpmnt Impoundment Dam
Key Takeaway
Kootenai Dvlpmnt Impoundment Dam is classified as high hazard in Montana. It was completed in 1980 and is 46 years old. Its primary use is other. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 135 ft (taller than 99.5% in MT) |
| Dam Length | 1,154 ft |
| Dam Type | Earth |
| Max Storage | 1.3K acre-ft |
| Normal Storage | 1.0K acre-ft |
| Surface Area | 75 acres |
| Drainage Area | 10 sq mi |
| Max Discharge | 1,860 cfs |
| Year Completed | 1980 (46 years old) |
| NID ID | MT01470 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
KOOTENAI DEVELOPMENT CO.
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Kootenai Dvlpmnt Impoundment Dam?
Kootenai Dvlpmnt Impoundment Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Kootenai Dvlpmnt Impoundment Dam?
Kootenai Dvlpmnt Impoundment Dam is owned by KOOTENAI DEVELOPMENT CO. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Kootenai Dvlpmnt Impoundment Dam built?
Kootenai Dvlpmnt Impoundment Dam was completed in 1980, making it 46 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 Kootenai Dvlpmnt Impoundment Dam?
Kootenai Dvlpmnt Impoundment Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Kootenai Dvlpmnt Impoundment Dam?
Kootenai Dvlpmnt Impoundment Dam has a dam height of 135 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 Kootenai Dvlpmnt Impoundment Dam last inspected?
Kootenai Dvlpmnt Impoundment Dam was last inspected on October 15, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.