Garrison Creek Stormwater Detention Dam
Key Takeaway
Garrison Creek Stormwater Detention Dam is classified as significant hazard in Washington. It was completed in 1991 and is 35 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Length | 150 ft |
| Dam Type | Earth |
| Max Storage | 45 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 307 cfs |
| Year Completed | 1991 (35 years old) |
| NID ID | WA00577 |
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
Kent City Public Works Dept
Local Government
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High HazardFrequently Asked Questions
What is the hazard classification of Garrison Creek Stormwater Detention Dam?
Garrison Creek Stormwater Detention Dam 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 Garrison Creek Stormwater Detention Dam?
Garrison Creek Stormwater Detention Dam 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 Stormwater Detention Dam built?
Garrison Creek Stormwater Detention Dam was completed in 1991, making it 35 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 Stormwater Detention Dam?
Garrison Creek Stormwater 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 Garrison Creek Stormwater Detention Dam last inspected?
Garrison Creek Stormwater Detention Dam was last inspected on October 18, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.