Highway crews reopened the State Route 99 Alaskan Way Viaduct Saturday night after an inspection closure; however, all northbound viaduct traffic must exit at Western Avenue until 5 a.m. Monday.

The viaduct was closed until 5:00 p.m. Saturday for a semiannual inspection. Crews completed detailed inspections and maintenance work ahead of schedule, so the viaduct will not close Sunday as planned.

A section of SR 99 north of downtown, including the Battery Street Tunnel, will remain closed while crews working for the City of Seattle's Mercer Corridor Project install a sewer line beneath Aurora Avenue North.

The Seattle Department of Transportation says over the weekend, Mercer Corridor Project crews will begin work on SR 99, including the installation of an underground water line and storm water improvements.

The Montlake Bridge is also closed ot vehicular traffic from 5 a.m. on Saturday, Oct. 5 until 5 a.m. Monday morning, Oct. 7 for bridge maintenance work.

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