Washington State Department of Transportation
From South King County Transportation News
If you drive or ride the bus on State Route 99/Aurora Avenue North near Lake Union, you may want to factor in some extra time for your commute starting next week. By 6 a.m. Wednesday, March 11, one lane in each direction of SR 99 between the Aurora Bridge and Valley Street will be closed around the clock for several weeks. An overnight northbound full closure is planned from 10 p.m. Monday, March 9, to 6 a.m. Tuesday, March 10.
Contractor crews working for the Alaskan Way Viaduct Replacement Project will be installing foundations for future signs along the highway. The northbound lane closure will last about eight weeks and the southbound lane closure will last about 12 weeks.
In addition to added congestion, trips may take longer because buses will be traveling and stopping in one of the remaining two lanes of traffic. The southbound bus-only lane will be open to all traffic until the work is complete. Also, be aware that an additional lane may close at night and during some weekend days to expedite the construction schedule.