The Seattle Department of Transportation (SDOT) announces the next confirmed weekend closure of the I-5 on- and off-ramps at Mercer Street as part of the Mercer Corridor Project. A full weekend closure will occur the following weekend in September:
- September 21 – 24
Closure hours are scheduled to begin Friday at 11:00 p.m. to Monday at 5:00 a.m. Please note that work is dependent on weather and availability of materials and is subject to cancelation.
Detour route maps are available on the project website at: http://www.seattle.gov/Transportation/ppmp_mercer.htm. Detour routes will be signed on roadways and may be heavily used, particularly Denny Way both eastbound and westbound. Travelers are advised to consider alternate routes to their destinations such as SR 99 or alternate I-5 exits and entrances. During the weekend closure, Valley Street will be re-opened to two-way traffic between Westlake Avenue N and Fairview Avenue N, but will revert back to no westbound through-access to Fairview Avenue N on Monday morning at 5:00 a.m.
Please note that all South Lake Union businesses will remain open and will be accessible via alternative routes.
During these closures, the I-5 on-ramp at University Street will be concurrently closed to provide more efficient traffic flow around the closed Mercer Street exit lane. Fairview Avenue N will also be closed between Mercer Street and Valley Street and Mercer Street will be closed to through traffic between Westlake Avenue N and Fairview Avenue N. All detour routes will be clearly marked to support traffic flow around the closures.
Travelers are encouraged to carpool and use alternate modes of transportation. Transit
information can be found at:
- King County Metro at www.kingcounty.gov/metro, or by calling 206-553-3000
- Sound Transit at www.soundtransit.org
- Seattle Streetcar at http://www.seattlestreetcar.org/
- Community Transit at www.commtrans.org
Contact: Richard Sheridan, 206-684-8114