October 2025

CORRECTED NOTICE: Pipe Repair work at Southeast 22nd Place and Southeast 22nd Street as early as October 27

Expect single lane alternating traffic and driveway impacts

Crews have been saw cutting in preparation to perform pipe repair work to start as early as October 27. Crews will be repairing pipe on SE 22nd Pl and 78th Avenue Southeast down SE 22nd St. This work is expected to continue through early November. Traffic control will be in place 24/7, both during and after work hours. Please follow instructions from flaggers, traffic control, and signage while traveling through this work area.

We recently tested the pipe to ensure the newly installed conveyance system operates as planned. Pipe testing revealed an issue that needs a repair. Crews are repairing the pipe to make sure the system operates correctly and safely to ensure reliable sewer service for your community. This work will involve a construction method called open-cut trenching. During open-cut construction, crews sawcut the roadway’s surface, remove asphalt, and dig down to the pipe.

When pipe repairs are complete, crews will backfill the roadway and temporarily restore the roadway surface where the pipe was installed. Then, crews will restore all disturbed areas based on permit conditions agreed upon with the City of Mercer Island.

Single-lane traffic with flaggers and traffic control signals

During this work there will be single-lane traffic on SE 22nd Pl, 78th Ave SE, and SE 22nd St. Pedestrian access will be maintained. Cyclists can dismount and take the pedestrian route or ride along the vehicle detour route. Traffic signs, flaggers and signage will direct traffic through the work areas. Please use caution while driving or cycling on rough roadways and over steel plates.  

Access to homes will be maintained. We understand that waiting can be a temporary inconvenience. We appreciate your patience as we work to complete construction as safely and efficiently as possible. If you have questions or concerns about access, please call the construction hotline at 425-305-3578.

Please travel slowly through the work area and follow all signage, traffic control signals, and directions from crews. 

Parking advisory

“No parking” signs will be in place, and crews will alert residents whose driveway access will be impacted on SE 22nd St and SE 22nd Pl. If you have access concerns, please contact the Community Services team at 425-305-3578 or NMEsewer@kingcounty.gov.

What to expect during construction:

• This work is weather-dependent and may be rescheduled.
• Approved work hours are 7 a.m. to 7 p.m. Monday to Saturday.
• All work will be performed in the right-of-way.
• Noise, dust, and vibrations typical of an active construction project.
  • Grinding and saw cutting will create additional noise and vibrations.
• There will be parking restrictions on both sides of the roadway.
  • Crews will place "no parking" signs on both sides of the roadway for the duration of this work.
• Flaggers and single-lane alternating traffic during work hours.
• Emergency vehicle access will be maintained.
• Garbage, recycling, composting, and mail service will be maintained.
  • If services are interrupted, please call the project hotline at 425-305-3578.
• Construction schedules can change based on factors such as site conditions, weather, and material availability. Please visit the project website for updates.

Learn more about this project

• Contact the community services team at 425-305-3578 or email NMEsewer@kingcounty.gov
• Visit the project website: kingcounty.gov/MercerEnataiSewer.
• Alternative Formats Available: 206-477-5371 or TTY Relay: 711  

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