Work to improve safety on State Route 18 on Tiger Mountain starts the night of Nov. 4, 2016, with the first of four overnight directional closures.
Contractor crews working for the Washington State Department of Transportation (WSDOT) will close one direction of the highway
between Interstate 90 and Issaquah-Hobart Road Southeast on the nights of Nov. 4-5 and Nov. 11-12, alternating the closures each evening.
SR 18 directional overnight closures will be nightly from 8 p.m. to 8 a.m.
- Friday, Nov. 4, to the morning of Saturday, Nov. 5: Westbound from I-90 to Issaquah-Hobart Road.
- Saturday, Nov. 5, to the morning of Sunday, Nov. 6: Eastbound from Issaquah-Hobart Road to I-90.
- Friday, Nov. 11, to the morning of Saturday, Nov. 12: Westbound from I-90 to Issaquah-Hobart Road.
- Saturday, Nov. 12, to the morning of Sunday, Nov. 13: Eastbound from Issaquah-Hobart Road to I-90.
Crews will install glare screen blades on top of the concrete barrier separating eastbound and westbound traffic. They will also install additional reflective safety markings on the side of the concrete barrier.