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The existing 24th Avenue NW pedestrian pier will be replaced.
Seattle Public Utilities (SPU) and King County’s Ship Canal Water Quality Project is a 2.7-mile, approximately 14-foot diameter tunnel that will capture and temporarily hold more than 15 million gallons of stormwater mixed with some sewage during heavy rains. When the storm passes, flows will be sent to King County’s West Point Wastewater Treatment Plant in Magnolia.
The Ship Canal Water Quality Project includes the following projects and activities in Ballard:
24th Avenue NW pier
Ship Canal Water Quality pump station
Site preparation and 24th Avenue NW pier construction is expected in 2017.
The other elements are currently in design.
Once complete the Ship Canal Water Quality project will prevent nearly 60 million gallons of raw sewage and polluted stormwater from flowing into Lake Union, the Ship Canal, and Salmon Bay each year.
The 24th Avenue NW Pier will provide pedestrian access to the waterfront and feature public art. The construction of the new pier will also remove creosote-treated wood pilings from Salmon Bay which will improve water quality and create a better fish habitat.