West Alkali Reservoir
Key Takeaway
West Alkali Reservoir is classified as significant hazard in Montana. It was completed in 1902 and is 124 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 25 ft (taller than 70.3% in MT) |
| Dam Length | 504 ft |
| Dam Type | Earth |
| Max Storage | 1.9K acre-ft |
| Normal Storage | 1.2K acre-ft |
| Drainage Area | 16 sq mi |
| Max Discharge | 150 cfs |
| Year Completed | 1902 (124 years old) |
| NID ID | MT01334 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
G MILK RIVER LAND & CATTLE CO
Private
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What is the hazard classification of West Alkali Reservoir?
West Alkali Reservoir is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates West Alkali Reservoir?
West Alkali Reservoir is owned by G MILK RIVER LAND & CATTLE CO (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was West Alkali Reservoir built?
West Alkali Reservoir was completed in 1902, making it 124 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 West Alkali Reservoir?
West Alkali Reservoir 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 West Alkali Reservoir?
West Alkali Reservoir 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.