Sunrise Lake
Key Takeaway
Sunrise Lake is classified as significant hazard in Montana. It was completed in 1916 and is 110 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 14 ft (taller than 15.6% in MT) |
| Dam Length | 103 ft |
| Dam Type | Earth |
| Max Storage | 67 acre-ft |
| Normal Storage | 46 acre-ft |
| Year Completed | 1916 (110 years old) |
| NID ID | MT00829 |
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
WOODS THREE CREEKS RANCH LTD
Private
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What is the hazard classification of Sunrise Lake?
Sunrise Lake 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 Sunrise Lake?
Sunrise Lake is owned by WOODS THREE CREEKS RANCH LTD (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sunrise Lake built?
Sunrise Lake was completed in 1916, making it 110 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 Sunrise Lake?
Sunrise Lake 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 Sunrise Lake?
Sunrise Lake has a dam height of 14 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 Sunrise Lake last inspected?
Sunrise Lake was last inspected on July 16, 2014. Inspection dates indicate when a formal review occurred, not the results of that inspection.