SR520 Traffic Closure Update

WSDOT published this information:

Montlake Project construction underway this week with nighttime off-ramp closures If you travel through Montlake on SR 520, you may have noticed more construction activity this week on the SR 520 Montlake Project. Just like any good home improvement project, crews are starting with an important first step: preparing the work site. What does this mean for you? If you have any nighttime journeys planned on SR 520, please be aware that the westbound SR 520 exit to Lake Washington Boulevard is closed nightly this week, through Saturday, Aug. 10, from 10 p.m. to 6 a.m. In addition to the overnight ramp closures, this week you may see crews: Installing fencing, erosion control, and water-treatment facilities at the Montlake work site Removing trees and vegetation near SR 520 to allow construction of initial project elements Much of this work is to prepare for a major traffic shift (pdf 2.3 mb) later this fall, when crews will move eastbound traffic onto the West Approach Bridge North, which currently carries westbound-only traffic. This temporary shift will enable crews to replace the old, 1960s-era west approach bridge with a seismically stronger, three-lane bridge for eastbound-only SR 520 traffic. We expect the Montlake Project to last approximately four years. Over the course of the project, short-term closures of on- and off-ramps at Montlake Boulevard, as well as lane closures on SR 520, will be required. Crews will often work at night and on weekends to avoid disruptions to daytime commuters and provide a safer work zone for both workers and the travelling public. Our nighttime work will comply with the noise limits and operational requirements spelled out in a Major Public Project Construction Noise Variance granted by the city of Seattle.  Please visit and bookmark our SR 520 Construction Corner to find up-to-date information on SR 520 construction. The site includes an interactive construction map that shows the specific location and duration of near-term work, along with any associated road closures. The Construction Corner also describes our responsibilities and protocols for limiting the effects of our construction.