Mercer Corridor Project
Weekly Construction Preview

SDOT's contractor is grading Westlake  Avenue North.

SDOT’s contractor is grading Westlake Avenue North.

This week, crews will continue to work on underground utilities on Valley Street, Broad Street, Ninth Avenue North and Westlake Avenue North, north of Mercer Street. Crews are also continuing construction on the north side of Mercer Street between Fifth Avenue North and Dexter Avenue North and the east side of SR 99 between Valley Street and Harrison Street.

 Activities this week include:

  • Begin nighttime lane restrictions on Ninth Avenue North and Westlake Avenue North:
  • Ninth Avenue North will have nighttime lane restrictions beginning the evening of Monday, June 24 and ending the morning of June 27 as crews work to complete watermain and stormwater utility work. One lane in each direction will be maintained on Ninth Avenue North from Mercer Street to just north of Broad Street. Work hours will be 7 p.m. to 5 a.m. Please note, Ninth Avenue North will re-open during the day to accommodate higher traffic volumes.
  • Northbound Westlake Avenue North will have nighttime lane restrictions between Aloha Street and Eighth Avenue North beginning the evening of June 26 and ending the morning of June 28. During this time, Westlake Avenue North will be reduced to a single northbound lane as crews work on underground utilities along the curb lane. Work hours will be from 7 p.m. to 5 a.m.
  • Continue sawcutting, sidewalk removal and conduit installation on the north side of Roy Street between First Avenue North and Fifth Avenue North and begin work on the south side of the roadway. Work will progress from west to east and will include parking lane closures while construction activities are underway.
  • Continue pavement removal and grading on Westlake Avenue North between Valley Street and Ninth Avenue North in preparation for rebuilding the roadway.
  • Continue work on the east side of SR 99 and Mercer Street between Fifth Avenue North and Dexter Avenue North including excavation and shoring for retaining wall removal and bridge abutment installation.

Traffic engineers will continue to:

  • Monitor traffic on Mercer Street, Fifth Avenue North, Broad Street and Ninth Avenue North.
  • Monitor traffic at the Westlake Avenue North and Mercer Street intersection.
  • Monitor traffic flow at the Dexter Avenue North and Mercer Street intersection.

For up-to-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.