If you, like many in West Seattle use SR 99 and the Alaskan Way Viaduct to get downtown or come home be prepared to leave earlier because traffic is going to slow down. On May 16, both directions of a section of the SR 99- Alaskan Way Viaduct corridor will shrink from three to two lanes between the West Seattle Bridge and Qwest and Safeco Fields. Other closures are planned to restripe lanes.

WSDOT crews need the space provided by the lane reduction to continue construction of the new southbound lanes.

The southern mile of the viaduct corridor will remain two lanes in each direction for the next two years and possibly longer, until the central waterfront section of the viaduct is replaced.

Sections of the viaduct will also close during the weekend of May 14-15 to restripe the lanes, with portions remaining closed until noon on May 14.

Both directions of SR 99 between the West Seattle Bridge and the Battery Street Tunnel will be closed from 11 p.m. Friday to noon on Saturday.

Northbound SR 99 will reopen between S. Royal Brougham Way and the Battery Street Tunnel at noon on Saturday, May 14.

All lanes of southbound SR 99 between the Battery Street Tunnel and the West Seattle Bridge will remain closed until 5 a.m., Monday.
All lanes of northbound SR 99 between the West Seattle Bridge and S. Royal Brougham Way will remain closed until 5 a.m., Monday.

Getting around during construction
Information to help drivers plan for the lane reduction and learn about commute alternatives is available.