Walterville Forebay
Key Takeaway
Walterville Forebay is classified as high hazard in Oregon. It was completed in 1911 and is 115 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 24 ft (taller than 42.5% in OR) |
| Dam Length | 280 ft |
| Dam Type | Concrete |
| Max Storage | 275 acre-ft |
| Normal Storage | 275 acre-ft |
| Drainage Area | 1,085 sq mi |
| Max Discharge | 3,380 cfs |
| Year Completed | 1911 (115 years old) |
| NID ID | OR00600 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Eugene Water and Electric Board
Public Utility
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Walterville Forebay?
Walterville Forebay is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Walterville Forebay?
Walterville Forebay is owned by Eugene Water and Electric Board (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Walterville Forebay built?
Walterville Forebay was completed in 1911, making it 115 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 Walterville Forebay?
Walterville 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 Walterville Forebay?
Walterville Forebay has a dam height of 24 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 Walterville Forebay last inspected?
Walterville Forebay was last inspected on August 3, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.