Arthur
Key Takeaway
Arthur is classified as low hazard in Montana. It was completed in 1930 and is 96 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 20 ft (taller than 44.5% in MT) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 155 acre-ft |
| Normal Storage | 79 acre-ft |
| Year Completed | 1930 (96 years old) |
| NID ID | MT02459 |
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
MARION CHRISTIANSEN
Private
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Low Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Arthur?
Arthur 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 Arthur?
Arthur is owned by MARION CHRISTIANSEN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Arthur built?
Arthur was completed in 1930, making it 96 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 Arthur?
Arthur 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 Arthur?
Arthur has a dam height of 20 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.