Antelope Flat (Crook)
Key Takeaway
Antelope Flat (Crook) is classified as low hazard in Oregon. It was completed in 1965 and is 61 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 33 ft (taller than 66.3% in OR) |
| Dam Length | 640 ft |
| Dam Type | Earth |
| Max Storage | 2.0K acre-ft |
| Normal Storage | 1.8K acre-ft |
| Surface Area | 172 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 1,090 cfs |
| Year Completed | 1965 (61 years old) |
| NID ID | OR00378 |
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
MCCORMICK RANCH LLC
Private
Nearby Dams
Camp Creek Reservoir (Crook)
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Low Hazard 15 ftCamp Creek No.2 (Crook)
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Low Hazard 35 ftPine Creek Dam (Crook)
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Low Hazard 35 ftLogan Butte Reservoir
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Low Hazard 36 ftSherwood Creek Reservoir
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Low Hazard 27 ftPringle Flat Reservoir
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Low Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Antelope Flat (Crook)?
Antelope Flat (Crook) 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 Antelope Flat (Crook)?
Antelope Flat (Crook) is owned by MCCORMICK RANCH LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Antelope Flat (Crook) built?
Antelope Flat (Crook) was completed in 1965, making it 61 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 Antelope Flat (Crook)?
Antelope Flat (Crook) 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 Antelope Flat (Crook)?
Antelope Flat (Crook) has a dam height of 33 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.
When was Antelope Flat (Crook) last inspected?
Antelope Flat (Crook) was last inspected on August 24, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.