Clearwater No 1 Forebay
Key Takeaway
Clearwater No 1 Forebay is classified as low hazard in Oregon. It was completed in 1953 and is 73 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 17 ft (taller than 23% in OR) |
| Dam Length | 4,200 ft |
| Dam Type | Earth |
| Max Storage | 182 acre-ft |
| Normal Storage | 170 acre-ft |
| Surface Area | 17 acres |
| Year Completed | 1953 (73 years old) |
| NID ID | OR00542 |
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
PacifiCorp
Private
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High Hazard 120 ftFrequently Asked Questions
What is the hazard classification of Clearwater No 1 Forebay?
Clearwater No 1 Forebay 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 Clearwater No 1 Forebay?
Clearwater No 1 Forebay is owned by PacifiCorp (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Clearwater No 1 Forebay built?
Clearwater No 1 Forebay was completed in 1953, making it 73 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 Clearwater No 1 Forebay?
Clearwater No 1 Forebay serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Clearwater No 1 Forebay?
Clearwater No 1 Forebay has a dam height of 17 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 Clearwater No 1 Forebay last inspected?
Clearwater No 1 Forebay was last inspected on July 13, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.