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People using westbound Interstate 90 this week should allow extra time to travel between State Route 18 and Issaquah. The freeway will be reduced to one left lane 24 hours a day, until 5 a.m. Thursday, Sept. 15, west of the High Point interchange. This resulted in backups of up to six miles.
A second long-term westbound lane reduction is scheduled from 9:00 a.m. Sunday, September 18 to 5:00 a.m. on Friday, September 23. Traffic will be reduced to the right lane for just 104 straight hours next week.
Contractors working for the Washington State Department of Transportation are removing and replacing 1,550 feet of damaged concrete pavement. The scope of the work will require closures throughout the day, said WSDOT project engineer Sean Went.
“We’re going to remove all the pavement down to the soil, install a new drainage system, and then we’re going to rehabilitate this section of I-90,” Wendt said. “There is so much asphalt being replaced that this kind of work cannot be done overnight.”
This section of I-90 is about 45 years old. There is an old coal mine that closed before I-90 was built. The mine collected water, eventually starting to seep out from underneath and onto the road. That water, combined with the cold and high temperatures, has cracked the highway and the asphalt needs to be replaced.
Commuters can get real-time traffic information on mobile phones by following the WSDOT Traffic app and the WSDOT Traffic Twitter feed.
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