Sands Lake East Dike
Key Takeaway
Sands Lake East Dike is classified as significant hazard in Montana. It was completed in 1911 and is 115 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 6 ft |
| Dam Length | 1,400 ft |
| Dam Type | Earth |
| Max Storage | 650 acre-ft |
| Normal Storage | 405 acre-ft |
| Surface Area | 100 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 110 cfs |
| Year Completed | 1911 (115 years old) |
| NID ID | MT03773 |
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
HAVRE IRRIGATION COMPANY
Private
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Low Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Sands Lake East Dike?
Sands Lake East Dike 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 Sands Lake East Dike?
Sands Lake East Dike is owned by HAVRE IRRIGATION COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sands Lake East Dike built?
Sands Lake East Dike was completed in 1911, making it 115 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 Sands Lake East Dike?
Sands Lake East Dike 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 Sands Lake East Dike?
Sands Lake East Dike has a dam height of 6 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 Sands Lake East Dike last inspected?
Sands Lake East Dike was last inspected on June 20, 1995. Inspection dates indicate when a formal review occurred, not the results of that inspection.