However, construction is expected to continue into October, the state Department of Transportation said Thursday.
And before the new roadway opens, drivers will be detoured to the Seattle City Light access road from 9 p.m. Friday until 4 a.m. Monday. Over the weekend, workers will install the last of six culverts and finish other drainage features along the new road.
There will be periodic detours in coming weeks as crews finish elevating and rebuilding the highway, which was buried by the March 22 Oso mudslide.
One such delay is planned from 9 p.m. Tuesday until 4 a.m. Thursday. Pilot cars are to guide westbound traffic hourly on the hour, and eastbound traffic on the half hour.
Pilot cars also are on hand to direct one-way traffic for lane closures throughout the next two weeks. Drivers should expect delays up to 20 minutes while crews pave and stripe the new road.
Construction depends on weather, and detours might be rescheduled.
Community meetings about road construction and debris cleanup are planned next week:
7 p.m. Monday at the Darrington Community Center, 570 Sauk Ave.
6 p.m. Wednesday at the Stillaguamish Senior Center, 18308 Smokey Point Blvd. in Arlington
7 p.m. Thursday at the Oso Community Chapel, 22318 Highway 530.
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