Crews reopened the Alaskan Way Viaduct on Saturday night after inspection work was complete. But all northbound viaduct traffic must exit at Western Avenue until 5 a.m. Monday.
The viaduct was to be closed Saturday and Sunday for a semiannual inspection and maintenance. Work was completed ahead of schedule, and the viaduct will be open Sunday.
A section of Highway 99 north of downtown, including the Battery Street Tunnel, will remain closed while workers install a sewer line beneath Aurora Avenue North.
All lanes in both directions of Highway 99/Aurora Avenue North will be closed between the south end of the Battery Street Tunnel and Valley Street until 5 a.m. Monday. Mercer Street, Broad Street and the I-5 onramp and offramp at Mercer Street will remain open.