Garrison Creek 98th Avenue Detention D
Key Takeaway
Garrison Creek 98th Avenue Detention D is classified as high hazard in Washington. It was completed in 1996 and is 30 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 | 900 ft |
| Dam Type | Earth |
| Max Storage | 64 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 216 cfs |
| Year Completed | 1996 (30 years old) |
| Year Modified | 1997 |
| NID ID | WA00650 |
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
Kent City Public Works Dept
Local Government
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High HazardFrequently Asked Questions
What is the hazard classification of Garrison Creek 98th Avenue Detention D?
Garrison Creek 98th Avenue Detention D 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 Garrison Creek 98th Avenue Detention D?
Garrison Creek 98th Avenue Detention D is owned by Kent City Public Works Dept (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Garrison Creek 98th Avenue Detention D built?
Garrison Creek 98th Avenue Detention D was completed in 1996, making it 30 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 Garrison Creek 98th Avenue Detention D?
Garrison Creek 98th Avenue Detention D serves the following purposes: Flood Risk Reduction, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Garrison Creek 98th Avenue Detention D last inspected?
Garrison Creek 98th Avenue Detention D was last inspected on October 24, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.