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Rainier Valley wet weather storage

Completed Fall 2018

King County built this project to keep sewage and stormwater out of the Duwamish River. We installed a new sewer pipe near the intersection of Rainier Avenue South and South Bayview Street to send sewage and stormwater from a pipe that gets full during storms to another pipe that has more room.

We also built a storage tank at the intersection of South Hanford Street and South 27th Avenue. This tank can store extra sewage and stormwater that may otherwise be released into the Duwamish River.

New and reused pipe at South Bayview Street (May 2014)


Underground storage tank at South Hanford Street (May 2015)