Lacosta
Key Takeaway
Lacosta is classified as low hazard in Montana. It was completed in 1968 and is 58 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 28 ft (taller than 80.9% in MT) |
| Dam Length | 2,640 ft |
| Dam Type | Earth |
| Max Storage | 1.7K acre-ft |
| Normal Storage | 707 acre-ft |
| Year Completed | 1968 (58 years old) |
| NID ID | MT00472 |
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
LACOSTA LIVESTOCK CO
Private
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Low Hazard 21 ftFrequently Asked Questions
What is the hazard classification of Lacosta?
Lacosta 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 Lacosta?
Lacosta is owned by LACOSTA LIVESTOCK CO (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lacosta built?
Lacosta was completed in 1968, making it 58 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 Lacosta?
Lacosta 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 Lacosta?
Lacosta has a dam height of 28 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.