Mercer Corridor Project
Weekly Construction Wrap-up

Bike lane on Valley Street

Bike lane on Valley Street



mercer_logo_200This week, crews continued sidewalk work on the south side of Mercer Street between Queen Anne Avenue North and Third Avenue North. Construction activities also continued on the north side of Mercer Street between Fifth Avenue North and Dexter Avenue North and the east side of SR 99 between Valley and Harrison streets.

Activities this week included:

  • Began installation of an underground storm water detention system on Mercer Street between Fourth and Fifth avenues
  • Continued sidewalk work and conduit installation on the south side of Mercer Street between Queen Anne Avenue North and Third Avenue North and on the north side of Mercer Street between Queen Anne Avenue North and Fourth Avenue North.
  • Continued landscaping installation on Westlake Avenue North and Valley Street.
  • Continued sidewalk improvements on Roy Street at Fifth Avenue North.
  • Continued installing concrete panels on the north retaining wall on Mercer Street between Fifth Avenue North and Dexter Avenue North.
  • Continued installing utilities on the south side of Mercer Street between Fifth Avenue North and Aurora Avenue North.
  • Continued work on the north and south ends of the east side of the SR 99 bridge.

As a reminder, this weekend, SR 99 and eastbound Mercer Street will be fully closed to traffic beginning Saturday, December 14 at 3 a.m. to Monday, December 16 at 5 a.m. as Mercer Corridor Project crews demolish the western portion of the SR 99 bridge over Mercer St. Details about the closure can be found on the Mercer Corridor Project website, http://www.seattle.gov/transportation/mercercorridor.htm.

Please note, nighttime lane restrictions and closures on eastbound Mercer Street will be in effect from 9:00 p.m. to 5:00 a.m. weekday evenings, December 16-20.

  • Eastbound traffic on Mercer Street will be required to turn right on Fifth Avenue North and re-connect to eastbound Mercer Street via Harrison and eastbound Broad streets.
  • Northbound and southbound Fifth Avenue North will remain open to traffic.
  • Mercer Street east of Fifth Avenue North be closed to traffic.

For up-to-the-minute construction updates join our project email list at: http://www.seattle.gov/transportation/mercercorridor.htm or call the 24-hour construction hotline at 206-419-5818.