Hardin Sewage Lagoon
Key Takeaway
Hardin Sewage Lagoon is classified as low hazard in Montana. It was completed in 1962 and is 64 years old. Its primary use is other.
Physical Details
| Dam Height | 9 ft (taller than 2.9% in MT) |
| Dam Length | 2,500 ft |
| Dam Type | Earth |
| Max Storage | 125 acre-ft |
| Normal Storage | 113 acre-ft |
| Year Completed | 1962 (64 years old) |
| NID ID | MT01404 |
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 HARDIN
Local Government
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Low Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Hardin Sewage Lagoon?
Hardin 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 Hardin Sewage Lagoon?
Hardin Sewage Lagoon is owned by CITY OF HARDIN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hardin Sewage Lagoon built?
Hardin Sewage Lagoon was completed in 1962, making it 64 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 Hardin Sewage Lagoon?
Hardin 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 Hardin Sewage Lagoon?
Hardin Sewage Lagoon has a dam height of 9 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.