Upriver Dam
Key Takeaway
Upriver Dam is classified as high hazard in Washington. It was completed in 1937 and is 89 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 | 38 ft (taller than 43.5% in WA) |
| Dam Length | 725 ft |
| Dam Type | Concrete |
| Normal Storage | 3.0K acre-ft |
| Surface Area | 50 acres |
| Drainage Area | 4,057 sq mi |
| Max Discharge | 58,000 cfs |
| Year Completed | 1937 (89 years old) |
| NID ID | WA00074 |
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
City of Spokane
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Upriver Dam?
Upriver Dam 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 Upriver Dam?
Upriver Dam is owned by City of Spokane (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upriver Dam built?
Upriver Dam was completed in 1937, making it 89 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 Upriver Dam?
Upriver Dam serves the following purposes: Hydroelectric, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Upriver Dam?
Upriver Dam has a dam height of 38 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 Upriver Dam last inspected?
Upriver Dam was last inspected on August 18, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.