Work Completed to Date
PSE has completed switching power over to the new system, including private connections and existing signals. UW/ELI Integra, Seattle City Light, Comcast, and Frontier have remaining work to do before existing utility poles can be permanently removed within the project limits. PSE Gas continues to install new gas line.
The electrical contractor has constructed as many street light and signal foundations south of SR 522 as they are able to for the time being. Areas for service and signal cabinet concrete foundation pads are being prepared for construction.
Waterline construction resumed during the night at 101st Ave NE. Much of the new sewer, storm, and water lines constructed south of existing SR 522 have been tested and repaired as necessary.
Roadway grading of SR 522 subgrade was completed allowing the placement of base rock material in preparation for paving. The start of retaining wall construction near 101st Ave NE has been temporarily postponed to address a utility conflict.
Scheduled Roadway Construction Activities
Private utility work includes completing UW/ELI Integra, Seattle City Light, and Comcast utility undergrounding work. PSE will remove utility poles from the west end of the project. PSE Gas will finish the new gas main and abandon the old system. Frontier will continue installing new communication lines into the new joint utility trench conduit.
Scheduled roadway work includes fine grading of base rock course material, asphalt pavement, and curb on the new SR 522 alignment. The contractor’s tentative plan is to begin widening work between 101st Ave NE and the 102nd Ave NE Bridge.
Public utility work includes finishing repairs and testing of portions of new storm sewer, sanitary sewer, and water line installation south of existing SR 522. The contractor will continue night work to install water line at 101st Ave NE, and then will begin on 98th Ave NE.
Electrical work includes finishing concrete signal/service cabinet foundation pads, and installation of cabinets.
Clearing and grubbing will occur for Retaining Walls No. 2 and No. 3 near 101st Ave NE. The contractor will construct access and begin installation of soldier piles for Retaining Wall No. 3.
Anticipated Traffic Impacts
SR 522 may have weekday lane restrictions from 9 am to 3 pm. Nighttime closures will continue through the second week of July between 9 pm and 5 am for underground utility work/connections. Closures will be related and tailored to work at 101st Ave NE, 98th Ave NE, and NE 180th St, in that order.
101st Ave NE will remain closed to northbound traffic from SR 522 beginning in late May until late August. No parking is allowed on 101st Ave NE south of Main Street during the road closure between 9 pm and 5 am.
Current and upcoming lane closure information is posted as necessary on the right side of the screen under "Traffic Impacts."