Sewer upgrades detour traffic in North Beach

Starting today, King County sewer utility crews will begin construction on a new pollution control facility that will result in up to a year of traffic detours for North Beach/Blue Ridge neighbors and park visitors.

Crews will be closing the intersection at Triton Dr NW, NW Blue Ridge Dr, NW Neptune Place, and NW 100th St (see orange shaded area in photo below) to enable construction on the North Beach Combined Sewer Overflow (CSO) Control Project.


The roadway restrictions will affect access through the intersection. Pedestrian access to Blue Ridge Park will be maintained during this time.

King County Metro Routes 61 and 18X will not be using the 28th Ave NW stops during the construction. Passengers will be instead be picked up and dropped off at North Beach on 24th Ave NW. Click here to check out the map of relocated bus stops.

When completed in 2015, King County’s North Beach CSO Project will protect public health and water quality by controlling stormwater and wastewater that would otherwise overflow into Puget Sound during heavy rains. The project entails building an underground storage tank in the public right-of-way that will hold flows when treatment plants are too full.

In addition to underground storage, crews will also build new odor control and electrical facilities on King County’s existing North Beach Pump Station (9921 Triton Drive NW) during the project.

If you have questions or need additional information about the project, call the 24/7 construction hotline at (206) 296-7372 or visit the project website.

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