Little Boy Blue
Key Takeaway
Little Boy Blue is classified as low hazard in Montana. It was completed in 1919 and is 107 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 12 ft (taller than 9.2% in MT) |
| Dam Length | 180 ft |
| Dam Type | Earth |
| Max Storage | 282 acre-ft |
| Normal Storage | 119 acre-ft |
| Year Completed | 1919 (107 years old) |
| NID ID | MT03049 |
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
OLIVER LIVESTOCK CO
Private
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Little Boy Blue?
Little Boy Blue 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 Little Boy Blue?
Little Boy Blue is owned by OLIVER LIVESTOCK CO (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Little Boy Blue built?
Little Boy Blue was completed in 1919, making it 107 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 Little Boy Blue?
Little Boy Blue 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 Little Boy Blue?
Little Boy Blue has a dam height of 12 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.