Date(s) - 03/11/2020
7:00 pm - 8:30 pm
Sunset Hill Community Club
NOTICE OF CANCELLATION — Due to Coronavirus, we have had to cancel our March 11 meeting. We will reschedule when Public Health indicates that community meetings are once again okay.
Ship Canal Water Quality Project
Please join us at the Ballard District Council March 11 meeting for a timely and detailed update on Seattle Public Utilities’ Ship Canal Water Quality Project. A key hub of activity is on Ballard’s Salmon Bay waterfront — at the base of 24th Avenue NW.
This multi-year stormwater and sewage infrastructure effort is well underway, stretching from Ballard to Wallingford. At $600 million, it is the largest capital facility that SPU has ever undertaken.
Kelsey Hinsberger and others on the SPU project team will update us on:
1) The context of this critical environmental redress for sanitary and stormwater sewer combined overflows into the Lake Union Ship Canal;
2) An overview of the facility, its staging and main components and what to expect in downtown Ballard, including detailed plans regarding:
– planned 65-foot tall pump station tower and tunnel shaft design
– revamped 24th Ave Pier (opening 2024)
– the Yankee Diner building and future of the site
– new powerful public art by Christian French
– adjacent pedestrian and street improvements
Additional info should you be unfamiliar with past presentations of the project …
Seattle Public Utilities and King County Wastewater Treatment Division are building an underground storage tunnel to significantly reduce the amount of polluted stormwater and sewage that flows into the Lake Washington Ship Canal, Salmon Bay and Lake Union from our sewer system.
The tunnel is 2.7-miles long, running from Ballard to Wallingford, and 18’10” wide. It will temporarily hold more than 29 million gallons of sewage and stormwater during heavy rains, keeping it out of Lake Washington. When the storm passes, the stored sewage and stormwater will be sent to King County’s West Point Wastewater Treatment Plant.
Ballard Site Overview
Ballard will be home to the western end of the tunnel and above-ground facilities, including a pump station, that support the tunnel. Tunnel boring will start at this location and move toward Fremont and Wallingford.
We bought the site near 24th and Shilshole avenues NW in 2015 and moved onto the site in 2016. Construction work started in 2018. By the end of 2019, the site will be ready for tunneling to begin in early 2020.
Project elements in Ballard include:
– New 24th Ave Pier that contains art inlays by artist Christian French (complete but closed to public until 2024)
– Pedestrian and street improvements on 24th Ave NW
Street end improvements
– New pipes along NW 56th St, 28th Ave NW and 24th Ave NW
– Ballard Pump Station site with small buildings, fencing, 100-ft deep by 90-ft wide drop shaft, and 65-foot tall pump station tower.
– Fencing around the pump station area