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Mercer Corridor Project

If you need this information translated, please call (206) 733-9990.
Si necesita traducir esta información al español, llame al (206) 733-9990.

The Mercer Corridor stretches from Interstate 5 to 5th Avenue W, and has been one of the City of Seattle’s most significant transportation challenges for over 40 years. SDOT is committed to improving the Mercer Street Corridor by 2016.

Learn more about the Mercer Corridor Project or subscribe to email alerts.

Last updated  02/24/2015

Nighttime full closure of Dexter Ave. N begins February 25

Beginning tomorrow, February 25 and continuing through March 5, crews will begin night-time closures on Dexter Ave. N between Republican and Mercer streets for electrical work.  Closures will run from 9 p.m. to 6 a.m. each weeknight, excluding Friday.  Travelers can expect the following impacts:

  • Dexter Ave. N will be fully closed between Republican and Mercer streets
  • Travelers will be detoured to 9th Ave. N.
  • This closure will not be in place Friday evenings.
  • Please plan ahead and expect traffic delays.

Please note that this work is weather-dependent and may be rescheduled for later dates if inclement weather occurs.

Ongoing daytime lane restrictions on Dexter Ave. N

Crews will continue electrical work on Dexter Ave. N Monday through Friday from 9 a.m. to 2 p.m. for approximately two weeks. During these hours, southbound Dexter Ave. N will be reduced to one lane between Roy and Mercer streets.
As a reminder, southbound Dexter Ave. N will also be restricted to one lane between Roy and Mercer streets between 8 p.m. and 6 a.m. Monday through Thursday for approximately six weeks.

Upcoming night work on Mercer St.

Crews will be performing electrical work on Mercer St. each night Monday through Thursday between 8 p.m. and 6 a.m. beginning March 9 for approximately four weeks. Travelers can expect the following impacts:

  • Westbound Mercer St. will be reduced to one lane between 9th Ave. N and SR99
  • Eastbound Mercer St. will be reduced to two lanes between SR 99 and 9th Ave. N
  • This closure will not be in place Friday evenings.

Previously announced Mercer St. and 5th Ave. N bike paths opening delayed until further notice
 
SDOT advises travelers that the previously announced February 22 opening of the new bike paths along Mercer St. and 5th Ave. N has been delayed until further notice. Crews anticipate finalizing pavement markings later this week, but the lanes will remain coned off until the bike signal heads are activated. This will provide a completed system for cyclists and a more predictable environment for all travelers.

Please obey signage and refrain from using areas that are roped or coned off. We will continue to provide updates as work progresses. Thank you for your continued patience as construction progresses in the corridor.

Nighttime lane restrictions on Mercer St. and Dexter Ave. N, beginning February 23

Crews will continue electrical work on Mercer St. and Dexter Ave. N each night Monday through Thursday between 8 p.m. and 6 a.m. beginning February 23 for approximately six weeks. Travelers can expect the following impacts:

  • Southbound Dexter Ave. N reduced to one lane between Roy and Mercer streets.
  • Westbound Mercer St. reduced to one lane between 9th Ave. N and SR 99.
  • Eastbound Mercer St. reduced to two lanes between SR 99 and 9th Ave. N.
  • Please plan ahead and expect traffic delays.
  • This closure will not be in place Friday evenings.

Intermittent lane closures on Mercer St. through spring 2015

Mercer St. between 1st Ave. N and 9th Ave. N will have intermittent lane closures during off-peak travel times between 9:00 a.m. and 3:00 p.m. to accommodate construction activities within the work zone. One westbound and up to two eastbound lanes will remain open on Mercer St. at all times.

Alternate routes through the corridor

With the closure of Broad St. and two-way traffic on Mercer St., Roy St., and Queen Anne Ave. N now in place, please consider using the following alternate routes during construction:

  • Use Roy St. as an alternate eastbound route through the Uptown neighborhood.
  • To access north Queen Anne, use Mercer St. and then proceed north on Queen Anne Ave. N.
  • Use eastbound Denny Way, 2nd Ave. or 5th Ave. to access I-5.
  • Use SR 99 and Elliott Ave. W as alternate routes to and from your final destination.
  • Access southbound SR 99 from Aloha or Valley streets.
  • To access northbound SR 99, use 2nd Ave. or 5th Ave. south from Denny Way and turn left on Battery St.

Route maps for navigating the corridor

Crews continue to monitor intersections throughout the corridor

We appreciate your patience as we work to improve flow throughout the corridor. Please continue to use alternate routes where possible and notify the project with any feedback, suggestions, or questions at mercerinfo@seattle.gov or (206) 419-5818.

Lane reductions on Mercer St. will continue throughout the West Phase of the Mercer Corridor Project, which is anticipated to be completed in mid-2015. Construction of this $95 million project will take approximately 2.5 years.


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