Local Information

SR 520 / Montlake Boulevard intersection getting a makeover

Thursday, August 6, 2015 - 10:54

Suanne Pelley, WSDOT communications, 206-819-7230

Highway off-ramp to Montlake closing this weekend for installation of traffic signal and crosswalk at busy junction near UW

SEATTLE – Drivers exiting westbound State Route 520 onto Seattle’s Montlake Boulevard will encounter a wider off-ramp and a new T-intersection beginning Monday, Aug. 10. To complete these roadway changes, contractor crews working for the Washington State Department of Transportation will close the off-ramp this weekend. In addition, all westbound lanes of SR 520 will close overnight on Sunday, Aug. 9.

Weekend closure details (pdf 3.9mb)
• The SR 520 westbound off-ramp to Montlake Boulevard will be closed from 11 p.m. Friday, Aug. 7, to 5 a.m. Monday, Aug. 10.
• Between 11 p.m. Friday and 11 p.m. Sunday, westbound traffic on SR 520 will reach Montlake Boulevard via the off-ramp to Lake Washington Boulevard.
• At 11 p.m. Sunday, all westbound lanes and ramps of SR 520 will be closed between 92nd Avenue Northeast and Montlake Boulevard.
• By 5 a.m. Monday, all westbound ramps and lanes of the highway will reopen, including the newly realigned, two-lane westbound off-ramp to Montlake Boulevard.
• This online map shows the sequence (pdf 480kb) of the weekend’s closures and reopenings.

Safety enhancements at intersection
Currently, westbound vehicles merge from SR 520’s single-lane off-ramp onto northbound Montlake Boulevard without stopping. On Monday, the realigned off-ramp – with two lanes instead of one – will tie into Montlake Boulevard at a newly configured T-intersection. Both off-ramp lanes will be right-turn only, and drivers will need to wait for a green light from the intersection’s new traffic signal before turning north onto Montlake Boulevard.

The revised intersection is designed not only to improve the merging of off-ramp traffic onto Montlake Boulevard, but also to make travel safer for pedestrians and bicyclists. When sidewalk construction is completed later this month, walkers and bicyclists will have a signalized crosswalk and no longer will confront vehicles making free right turns onto Montlake Boulevard’s northbound lanes.

WSDOT currently is making a number of other improvements in the Montlake area, such as building wider, ADA-compliant sidewalks and safer pedestrian islands. Later, when a new off-ramp to 24th Avenue East is constructed, WSDOT will build a wider bicycle and pedestrian path along that street’s popular north-south route between Capitol Hill and the University of Washington.

The new off-ramps and intersection improvements are part of WSDOT’s West Approach Bridge North project. This fixed-column bridge, scheduled to open in 2017, will cross Union Bay and connect the new SR 520 floating bridge to the Montlake area.

For information on road closures and construction activity associated with the SR 520 Bridge Replacement and HOV Program, please visit the SR 520 Orange Page and follow the project on Twitter.

Get Our Mobile App

  • Our Android and iPhone apps include statewide traffic cameras, travel alerts, mountain pass reports, ferry schedules and alerts, northbound Canadian border wait times and more.