Senator Wash
Key Takeaway
Senator Wash is classified as high hazard in California. It was completed in 1966 and is 60 years old. Its primary use is water supply. 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 | 84 ft (taller than 77.6% in CA) |
| Dam Length | 2,342 ft |
| Dam Type | Earth |
| Max Storage | 17.8K acre-ft |
| Normal Storage | 9.1K acre-ft |
| Surface Area | 470 acres |
| Drainage Area | 21 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1966 (60 years old) |
| NID ID | CA10185 |
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
RECLAMATION
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Senator Wash?
Senator Wash 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 Senator Wash?
Senator Wash is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Senator Wash built?
Senator Wash was completed in 1966, making it 60 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 Senator Wash?
Senator Wash 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 Senator Wash?
Senator Wash has a dam height of 84 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 Senator Wash last inspected?
Senator Wash was last inspected on March 18, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.