Southwest Genesee Street Detention Dam, located within Seattle city limits in Washington, is a crucial piece of infrastructure designed by the City of Seattle Engineering to mitigate flood risk along Longfellow Creek.
Wind
Humidity
Completed in 1974, this earth dam stands at a structural height of 27.4 feet with a hydraulic height of the same, providing a storage capacity of 52 acre-feet to manage stormwater runoff. The dam plays a significant role in protecting the surrounding area from potential flooding events, with a hazard potential rating of "high" and a condition assessment of "fair".
Maintained and regulated by the Washington Department of Ecology, the dam is subject to state inspections and enforcement to ensure its effectiveness in flood risk reduction. The dam's primary purpose aligns with its construction, focusing solely on flood risk reduction with a storage capacity of 19 acre-feet under normal conditions. Its location within King County, Washington, highlights the importance of proper management of water resources in urban settings to safeguard communities from the impacts of climate change and extreme weather events. With a history of regular inspections and a designated emergency action plan, Southwest Genesee Street Detention Dam stands as a critical infrastructure piece in the region's water resource management strategy.
Year Completed |
1974 |
Dam Length |
230 |
River Or Stream |
Longfellow Creek |
Primary Dam Type |
Earth |
Surface Area |
16 |
Hydraulic Height |
27.4 |
Drainage Area |
3.43 |
Nid Storage |
52 |
Structural Height |
27.4 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
27 |
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6700cfs |
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12cfs |
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5160cfs |
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|
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