Southwest Genesee Street Detention Dam
Key Takeaway
Southwest Genesee Street Detention Dam is classified as high hazard in Washington. It was completed in 1974 and is 52 years old. Its primary use is flood risk reduction. 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 Length | 230 ft |
| Dam Type | Earth |
| Max Storage | 52 acre-ft |
| Normal Storage | 19 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 240 cfs |
| Year Completed | 1974 (52 years old) |
| NID ID | WA00380 |
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
Seattle Public Utilities
Public Utility
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High HazardFrequently Asked Questions
What is the hazard classification of Southwest Genesee Street Detention Dam?
Southwest Genesee Street Detention 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 Southwest Genesee Street Detention Dam?
Southwest Genesee Street Detention Dam is owned by Seattle Public Utilities (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Southwest Genesee Street Detention Dam built?
Southwest Genesee Street Detention Dam was completed in 1974, making it 52 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 Southwest Genesee Street Detention Dam?
Southwest Genesee Street Detention Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Southwest Genesee Street Detention Dam last inspected?
Southwest Genesee Street Detention Dam was last inspected on September 5, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.