Salmonberry Reservoir
Key Takeaway
Salmonberry Reservoir is classified as significant hazard in Oregon. It was completed in 1960 and is 66 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 35 ft (taller than 69.6% in OR) |
| Dam Length | 530 ft |
| Dam Type | Earth |
| Max Storage | 61 acre-ft |
| Normal Storage | 61 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 330 cfs |
| Year Completed | 1960 (66 years old) |
| NID ID | OR02958 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CITY OF ST. HELENS
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Salmonberry Reservoir?
Salmonberry Reservoir is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Salmonberry Reservoir?
Salmonberry Reservoir is owned by CITY OF ST. HELENS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Salmonberry Reservoir built?
Salmonberry Reservoir was completed in 1960, making it 66 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 Salmonberry Reservoir?
Salmonberry Reservoir serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Salmonberry Reservoir?
Salmonberry Reservoir has a dam height of 35 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 Salmonberry Reservoir last inspected?
Salmonberry Reservoir was last inspected on October 24, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.