SR 520 Bridge Replacement and HOV Program - Improving transit


new HOV lanes on Eastside corridor
SR 520's new HOV lanes, now open on the Eastside and new floating bridge, enhance bus and carpool travel.

We are hard at work designing and building a new SR 520 corridor that not only enhances transportation safety, but improves mobility and reliability for all users, including drivers, transit riders, bicyclists and pedestrians.

We are building infrastructure that will support regional transit planning by King County Metro and Sound Transit. Our current highway design will help connect transit riders to destinations throughout the region, including downtown Seattle, the University of Washington, Capitol Hill and communities on the Eastside.


How will the new SR 520 improve transit operations?

  • More reliable bus trips, with transit/HOV lanes from I-5 in Seattle to SR 202 in Redmond and direct-access ramps on and off the highway.
  • Safer, easier connections for pedestrians and bicyclists on paths connected to bus stops and light rail, wider and better-signalized crosswalks, and local-service bus stops near regional bus stops.
  • Better operations in Montlake, with transit/HOV lanes on Montlake Boulevard, local and regional bus stops on a new Montlake lid, and opportunities for transit-signal priority.
  • Better operations on the Eastside, with median transit stops at Evergreen Point Road and 92nd Avenue Northeast.


How will transit operate on the new SR 520 corridor?

regional transit map 
Click map above for a larger version (pdf 1.5 mb). 


How has transit service changed on the Eastside?

92nd Ave NE lid
New highway lid, with a median transit stop, at 92nd Avenue Northeast.

In 2014, transit riders saw improvements in the way their buses move on the Eastside. Improved transit infrastructure on the Eastside includes:

  • One continuous transit/HOV lane on SR 520 in each direction from Medina to I-405, with transit/HOV lanes moved to the inside.
  • Landscaped lids with ADA-compliant median transit stops at Evergreen Point Road and 92nd Avenue Northeast provide a more pleasant rider experience than previous roadside stops.
  • Direct-access ramps at 108th Avenue Northeast that make it safer and quicker for buses and carpools to enter and exit the highway's HOV lanes.

Together, these transit and HOV improvements are decreasing travel times, prioritizing bus trips, reducing unsafe merges, and providing a more reliable trip for transit riders on the Eastside.


How will a new Montlake lid change transit operations?

rendering of Montlake lid
Rendering of a new Montlake lid, with regional bus stop at left, and local bus stop, at right, on Montlake Boulevard.

Through discussions with local communities, we minimized the size of the new SR 520 highway by relocating the Montlake Freeway Transit Station to the top of the planned Montlake lid. This will change future transit operations.

  • Downtown Seattle to Eastside: During peak hours, buses will not stop at the Montlake lid, providing more direct service. During off-peak hours, transit agencies could operate buses on top of the Montlake lid, providing service similar to today.
  • Capitol Hill to the Eastside: Riders will have a short walk from a new local bus stop to regional bus stops on the Montlake lid at all hours.
  • Capitol Hill to downtown Seattle: Riders can ride Link light rail, local buses, or the new First Hill Streetcar.


How the Montlake Multimodal Center operates

The Montlake Multimodal Center
An aerial view of the Montlake Multimodal Center, looking northwest, with the UW Medical Center at left, and Husky Stadium at right.

The Montlake Multimodal Center is a transportation hub in the triangle-shaped property known as the Montlake Triangle, across from the University Link station near Husky Stadium.

The Montlake Multimodal Center was completed in April 2016 and is a key regional transit destination with connections to the University of Washington, UW Medical Center, local and regional buses, regional bicycle and pedestrian trails and the University Link light rail station that connects to Capitol Hill and downtown Seattle. WSDOT worked closely with King County Metro, Sound Transit, the University of Washington and the Seattle Department of Transportation to prioritize safe, efficient connections for pedestrians and bicyclists to reach their destinations.

Together, these agencies designed and built a grade-separated overcrossing that allows pedestrians and bicyclists to travel to and from the Montlake Multimodal Center without having to cross busy streets or wait at a crosswalk.


Learn More

Read our folio about transit on the new SR 520 (pdf, 648 kb).