Seattle Public Utilities (SPU) crews will conduct soil tests near the Lake Washington Ship Canal to Investigate potential locations for underground sewage and stormwater storage.
When rain overwhelms the combined sewer system, raw sewage and polluted stormwater spill
into the ship canal in Ballard, Fremont and Wallingford.
As part of a ten year project to protect human health and the environment, and comply with existing laws, SPU will need to construct storage for approximately 9.4 million gallons of sewage and polluted stormwater.
Crews will drill holes up to 150 feet in depth, primarily in the parking strip and on side streets. “No Parking” signs will be placed 72 hours in advance of the work and will be removed as soon as work is completed.
Work will occur from late August through September at 14 locations near shilshole Avenue, Leary Avenue NW, and NW 35th Street. It will take approximately four to five days to complete at each location. Work will be occurring in the Right-Of-Way and happen during normal work hours will be between 7 a.m. and 7 p.m., Monday through Friday.
SPU would like people to be prepared for:
• Crews working on and around the location
• A vehicle-mounted drill rig and support truck
• Paint and other temporary markings in the right of way
• Reduced nearby parking
• Limited traffic impacts in a few locations
• Periodic noise from drilling operations, including engine noises
