The Ship Canal Water Quality project is a large-scale construction project impacting Fremont, as well as South Wallingford and the maritime area of Ballard.
As early as April 8th, construction will begin on NW 36th St near 2nd Ave NW for soil stabilization, and utility relocations. The primary purpose of the project, and the work in Fremont, is building of a new, elongated storage tunnel for overflow sewage during severe rainstorms. This will take construction of an 85 ft deep, 32 ft diameter vertical shaft, and new pipe installations to connect the new shaft to the existing sewer system. It will also, eventually, mean new underground structures to house mechanical, electrical, and odor control equipment.
In addition, there will be another work site just east of Fremont, at Interlake Ave N & N 35th St (the Wallingford site,) and the Ship Canal Water Quality contractor will be installing a 12-foot sound containment wall on the Northern and Eastern sides of site over the next month. Starting as early as July, the major work will commence including installing stormwater control and soil monitoring equipment, removing asphalt, concrete and trees, and excavating the contaminated soils from the site.
Work has already begun on the Ballard site, on Shilshole Ave NW near 24th Ave NW, where they will soon build the sound containment wall. Drivers in Ballard may experience short interruptions as trucks enter and leave the work zone, and notice temporary removal of street parking to allow for the truck traffic. There will also be installation of a drill rig for installing steel beam fence posts. However, the work will be of small scale through August 2020 so the 24th Ave NW Pier will remain open to pedestrians until then.
For more information on the Ship Canal Water Quality project, visit the website (click here.) To get specific questions answered, e-mail SPU_ShipCanalProject@seattle.gov or call 206/701-0233.