7-Up Sea
Key Takeaway
7-Up Sea is classified as low hazard in Montana. It was completed in 1949 and is 77 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 25 ft (taller than 70.3% in MT) |
| Dam Length | 350 ft |
| Dam Type | Earth |
| Max Storage | 90 acre-ft |
| Normal Storage | 46 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 600 cfs |
| Year Completed | 1949 (77 years old) |
| NID ID | MT02394 |
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
JAMES/FRANK SPARKS
Private
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of 7-Up Sea?
7-Up Sea 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 7-Up Sea?
7-Up Sea is owned by JAMES/FRANK SPARKS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was 7-Up Sea built?
7-Up Sea was completed in 1949, making it 77 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 7-Up Sea?
7-Up Sea 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 7-Up Sea?
7-Up Sea has a dam height of 25 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.