Blackford #5
Key Takeaway
Blackford #5 is classified as low hazard in Montana. It was completed in 1955 and is 71 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 12 ft (taller than 9.2% in MT) |
| Dam Length | 900 ft |
| Dam Type | Earth |
| Max Storage | 891 acre-ft |
| Normal Storage | 264 acre-ft |
| Drainage Area | 19 sq mi |
| Max Discharge | 1,000 cfs |
| Year Completed | 1955 (71 years old) |
| NID ID | MT02764 |
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
A BLACKFORD
Private
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Significant Hazard 24 ftFrequently Asked Questions
What is the hazard classification of Blackford #5?
Blackford #5 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 Blackford #5?
Blackford #5 is owned by A BLACKFORD (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Blackford #5 built?
Blackford #5 was completed in 1955, making it 71 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 Blackford #5?
Blackford #5 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 Blackford #5?
Blackford #5 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.