Shelby Sewage Lagoon
Key Takeaway
Shelby Sewage Lagoon is classified as low hazard in Montana. It was completed in 1960 and is 66 years old. Its primary use is other.
Physical Details
| Dam Height | 10 ft (taller than 3.7% in MT) |
| Dam Length | 2,000 ft |
| Dam Type | Earth |
| Max Storage | 195 acre-ft |
| Normal Storage | 195 acre-ft |
| Year Completed | 1960 (66 years old) |
| NID ID | MT01412 |
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
CITY OF SHELBY
Local Government
Nearby Dams
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High Hazard 49 ftSullivan Dam
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Low Hazard 25 ftMelcott
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Low Hazard 10 ftWilson #2 (Toole)
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Low Hazard 25 ftWilson #1 (Toole)
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Low Hazard 20 ftWanken
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Significant Hazard 30 ftThe Moonspinner
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Shelby Sewage Lagoon?
Shelby Sewage Lagoon 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 Shelby Sewage Lagoon?
Shelby Sewage Lagoon is owned by CITY OF SHELBY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Shelby Sewage Lagoon built?
Shelby Sewage Lagoon was completed in 1960, making it 66 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 Shelby Sewage Lagoon?
Shelby Sewage Lagoon serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Shelby Sewage Lagoon?
Shelby Sewage Lagoon has a dam height of 10 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.