Crazy Sombreo
Key Takeaway
Crazy Sombreo is classified as significant hazard in Montana. It was completed in 1950 and is 76 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 58 ft (taller than 97.5% in MT) |
| Dam Length | 340 ft |
| Dam Type | Earth |
| Max Storage | 205 acre-ft |
| Normal Storage | 163 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1950 (76 years old) |
| NID ID | MT03737 |
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
JOHN C. MACKAY GENERAL PARTNER
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Crazy Sombreo?
Crazy Sombreo 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 Crazy Sombreo?
Crazy Sombreo is owned by JOHN C. MACKAY GENERAL PARTNER (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Crazy Sombreo built?
Crazy Sombreo was completed in 1950, making it 76 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 Crazy Sombreo?
Crazy Sombreo 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 Crazy Sombreo?
Crazy Sombreo has a dam height of 58 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.