Local Information

Get ready for slowdowns on SR 99/Aurora Ave. North near South Lake Union

Monday, January 11, 2016 - 08:01

Laura Newborn,
Alaskan Way Viaduct Replacement Program communications,
206-805-2871; 206-639-8577 (mobile)


Lane closures to last more than one month beginning Monday, Jan. 18

SEATTLE – Heads up, drivers and commuters: There’s just one week to go before construction work narrows a one-mile stretch of State Route 99/Aurora Avenue North to two lanes in each direction.

Contractor crews working for the Alaskan Way Viaduct Replacement Program will close the median lanes between the Aurora Bridge and Highland Drive north of Mercer Street to build foundations for the large signs that will eventually direct drivers to and around the future SR 99 tunnel.

Drivers should expect slower-than-normal travel times and traffic backups– especially on southbound SR 99/Aurora Avenue North, where the bus-only lane will be open to all traffic for more than a month.

Once the median work is complete and the lanes reopen, crews will need to close one southbound lane near Comstock Street during the second phase of work.

Closure details (see animated map)
Monday, Jan. 18, through mid-February:

  • The median lanes will close in both directions between the Aurora Bridge and Highland Drive, just north of Mercer Street.
  • An additional lane will close at night and during several weekends, including Jan. 23-24.

Mid-February through early March:

  • The median lanes will reopen in both directions.
  • The southbound right lane near Comstock Street will close.
  • An additional southbound lane may close at night.

The Washington State Department of Transportation anticipates additional backups on SR 99, particularly during peak commute times. WSDOT encourages drivers and bus riders to allow plenty of extra time for their commutes and to consider ways to avoid traveling during peak commute times in the morning and afternoon, if possible. Keep informed by using King County Metro’s rider alerts or trip planning tools as well as WSDOT's travel tools and SDOT’s travelers’ information page.


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