Upper Salmon
Key Takeaway
Upper Salmon is classified as significant hazard in California. It was completed in 1899 and is 127 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 13 ft (taller than 5.6% in CA) |
| Dam Length | 70 ft |
| Dam Type | Rockfill |
| Year Completed | 1899 (127 years old) |
| NID ID | CA10229 |
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
USDA FS
Federal Government
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Significant Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Upper Salmon?
Upper Salmon 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 Upper Salmon?
Upper Salmon is owned by USDA FS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper Salmon built?
Upper Salmon was completed in 1899, making it 127 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 Upper Salmon?
Upper Salmon serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Upper Salmon?
Upper Salmon has a dam height of 13 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 Upper Salmon last inspected?
Upper Salmon was last inspected on August 13, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.