Mercer Corridor Project to close SR 99 and Mercer Street next two weekends

Posted on Dec 3 2013 12:36 PM

The City of Seattle's Mercer Corridor Project will close a portion of State Route 99 and Mercer Street for the next two weekends (Dec. 6 to 9 and Dec. 13 to 16). The closures will allow crews to complete critical Mercer Street widening and SR 99 bridge replacement work to meet an important deadline allowing for construction of the SR 99 tunnel’s north portal next summer. This work is weather dependent and may be canceled and rescheduled for later dates if inclement weather occurs.

Closure details

11:59 p.m. Friday, Dec. 6 to 5 a.m. Monday, Dec. 9

  • SR 99 will be fully closed to traffic between Valley Street and the southern end of the Battery Street Tunnel. Traffic traveling through Seattle via SR 99 will be directed to I-5 in northern Seattle at 85th Street or in southern Seattle at East Marginal Way and South Spokane Street. More information about alternate routes during construction are available at http://www.seattle.gov/transportation/mercercorridor.htm.
  • Mercer Street will be fully closed to traffic between Fifth Avenue North and Dexter Avenue North. Traffic heading east toward I-5 from Queen Anne will be detoured to eastbound Broad Street and will reconnect to Mercer Street at Ninth Avenue North to continue toward the I-5 ramps at Mercer Street.
  • The sidewalk on Mercer Street will also be closed between Fifth Avenue North and Dexter Avenue North. Pedestrians will be detoured to Broad Street.
  • Broad Street and the I-5 on- and off-ramps at Mercer Street will remain open during the weekend work.

 

11 p.m. Friday, Dec. 13 to 5 a.m. Monday, Dec. 16

  • SR 99 will be fully closed to traffic between Valley Street and the southern end of the Battery Street Tunnel. Traffic traveling through Seattle via SR 99 will be directed to I-5 in northern Seattle at 85th Street or in southern Seattle at East Marginal Way and South Spokane Street. More information about alternate routes during construction is available at http://www.seattle.gov/transportation/mercercorridor.htm.
  • Mercer Street will be fully closed to traffic between Fifth Avenue North and Dexter Avenue North. Traffic heading east toward I-5 from Queen Anne will be detoured to eastbound Broad Street and will reconnect to Mercer Street at Ninth Avenue North to continue towards the I-5 ramps at Mercer Street.
  • The sidewalk on Mercer Street will also be closed between Fifth Avenue North and Dexter Avenue North. Pedestrians will be detoured to Broad Street.
  • Broad Street and the I-5 on- and off-ramps at Mercer Street will remain open during the weekend work.

 

Early warning signs will be available in advance of the SR 99 lane restrictions and Mercer Street detours. Travelers can expect significant traffic and delays and should plan ahead and use alternate routes.

Access to Seattle Center from I-5 on Mercer and Broad streets and from SR 99 will be open during both weekends.

Additional weekend closures will continue over the course of the project, which is scheduled for completion in mid-2015. Closures are coordinated with other construction projects and special events in the area, including activities at the Seattle Center, and will be announced as dates are confirmed.              

Visit the Mercer Corridor Project page for more information.