Martinsdale, East Dam
Key Takeaway
Martinsdale, East Dam is classified as high hazard in Montana. It was completed in 1939 and is 87 years old. Its primary use is irrigation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 49 ft (taller than 96.6% in MT) |
| Dam Length | 1,550 ft |
| Dam Type | Earth |
| Max Storage | 39.0K acre-ft |
| Normal Storage | 32.3K acre-ft |
| Surface Area | 985 acres |
| Drainage Area | 16 sq mi |
| Max Discharge | 1,060 cfs |
| Year Completed | 1939 (87 years old) |
| Year Modified | 1988 |
| NID ID | MT00007 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
STATE WATER PROJECTS
State Government
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Martinsdale, East Dam?
Martinsdale, East Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Martinsdale, East Dam?
Martinsdale, East Dam is owned by STATE WATER PROJECTS (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Martinsdale, East Dam built?
Martinsdale, East Dam was completed in 1939, making it 87 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 Martinsdale, East Dam?
Martinsdale, East Dam 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 Martinsdale, East Dam?
Martinsdale, East Dam has a dam height of 49 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 Martinsdale, East Dam last inspected?
Martinsdale, East Dam was last inspected on April 24, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.