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Overnight closures of the westbound State Route 520 exits to Montlake and Lake Washington boulevards start this Friday and will last through 4 a.m. Monday.
WSDOT is converting the shoulder of the Montlake Boulevard exit to a transit-only lane.
“Once complete, buses will be able to ‘jump the queue’ by bypassing much of the traffic on the Montlake Boulevard ramp,” according to a WSDOT news release. “The transit-only shoulder lane will remain for about six months before construction of the Montlake Project begins.”
Also referred to as “The Rest of the West,” the Montlake Phase of SR-520 reconstruction will make major changes to the Montlake interchange that includes a lid over 520 and a new West Approach Bridge South for eastbound traffic that will connect to the floating bridge over Lake Washington. There will also be a transit plaza and direct-access ramps for buses and high-occupancy vehicles.
The westbound exits will be closed 9 p.m. to 8 a.m. Friday and Saturday, and 9 p.m. Sunday, Oct. 7, to 4 a.m. Monday, Oct. 8.