Commuters traveling state Route 99 will face lane restrictions associated with the West Phase of the Mercer Corridor Project, beginning April 22. These lane reductions are one of the first steps in beginning Mercer West construction and will allow crews to complete early preparatory work associated with rebuilding the SR 99 Aurora overpass over Mercer Street.
Following the morning commute on April 22 crews will begin reducing SR 99 to two lanes in each direction between Aloha and Harrison streets:
• The curb lane on southbound SR 99 will be restricted between Aloha and Harrison streets.
•The curb lane on northbound SR 99 will be restricted between the Mercer Street exit and Roy Street.
Sidewalks on SR 99 will also be impacted during this work. The sidewalk on the west side of SR 99 will closed between Thomas and Roy streets, and the sidewalk on the east side of SR 99 will close between Republican and Roy streets.
Lane reductions on SR 99 will continue throughout the West Phase of the Mercer Corridor Project, anticipated to be complete in mid-2015.
Additionally, the Broad Street off-ramp from southbound SR 99 will be close at the same time and will remain closed through the duration of Mercer West construction.
Early warning signs will be available in advance of the SR 99 lane restrictions. Travelers can expect significant traffic and delays and should plan ahead and use alternate routes when possible.
A detour map illustrating SR 99 lane restrictions is available on-line for vehicles at www.seattle.gov/transportation/mercercorridor.htm.