Holbrook Reservoir
Key Takeaway
Holbrook Reservoir is classified as low hazard in Oregon. It was completed in 1930 and is 96 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 25 ft (taller than 43.9% in OR) |
| Dam Length | 200 ft |
| Dam Type | Earth |
| Max Storage | 740 acre-ft |
| Normal Storage | 740 acre-ft |
| Surface Area | 68 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 106 cfs |
| Year Completed | 1930 (96 years old) |
| NID ID | OR00119 |
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
STEVEN & KAREN SIMMONS, BLY 97662
Private
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Low Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Holbrook Reservoir?
Holbrook Reservoir 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 Holbrook Reservoir?
Holbrook Reservoir is owned by STEVEN & KAREN SIMMONS, BLY 97662 (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Holbrook Reservoir built?
Holbrook Reservoir was completed in 1930, making it 96 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 Holbrook Reservoir?
Holbrook Reservoir 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 Holbrook Reservoir?
Holbrook Reservoir has a dam height of 25 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 Holbrook Reservoir last inspected?
Holbrook Reservoir was last inspected on August 8, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.