SR 520 Bridge Replacement and HOV Program - SR 520 Trail

New cross-lake path connects communities

The SR 520 Bridge Replacement and HOV Program is expanding routes and improving access for bicyclists and pedestrians all along the SR 520 corridor, from I-5 to Redmond. A key part of these improvements is our new, dedicated shared-use path across Lake Washington that connects to existing local and regional trails. Whether you plan to walk, bike, jog or wheel, we hope you enjoy this new community resource!

A bicyclist rides away from the camera on a trail next to state route 520 highway. There are cars and busses on the highway and in the distance three pedestrians walk away from the camera
See a pictorial history of the trail in our SR 520 Trail Flickr album.

Share your SR 520 Trail adventures with us: #SR520Trail
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Trail history

Bicycle and pedestrian facilities on the Eastside corridor

The first section of the new SR 520 regional path – between Evergreen Point Road in Medina and 108th Avenue Northeast in Bellevue – opened in early 2015. WSDOT later helped the city of Bellevue build new sidewalk and bike lanes along Northup Way from 108th Avenue Northeast to the old SR 520 Trail east of I-405.

Extending the SR 520 Trail on Lake Washington

In July 2016, WSDOT opened the SR 520 Trail on the new floating bridge as an “out and back” trail from Medina to the west end of the floating bridge, about halfway across Lake Washington. This trail section includes scenic viewpoints and interpretive signage (PDF 10.2MB) for trail users to enjoy the views and learn more about the history of the 520 corridor.

Connecting Seattle and the Eastside

We opened the West Approach Bridge North to traffic in summer 2017, providing three new westbound travel lanes from the new floating bridge to Seattle. On Dec. 20 of that year, the SR 520 Trail opened all the way across Lake Washington via the new approach bridge over Union Bay. More than 300,000 bicyclists and pedestrians used the cross-lake trail during its first year of operation. 

"Where the I-90 Bridge feels like a means to get across the lake … the 520 Bridge is also a destination of its own"
- Tom Fucoloro, The Seattle Bike Blog, 1/3/18

What’s next? Future connections and extensions of the SR 520 Trail

In future phases of SR 520 construction, we‘ll extend the SR 520 Trail across Portage Bay. We'll also build an improved, nonmotorized crossing over I-5 to provide a better connection to Seattle’s local bicycle and pedestrian network. In the Montlake area, a new freeway lid at the SR 520/Montlake interchange will provide a direct connection to the Bill Dawson Trail, while a pedestrian/bicycle land bridge over SR 520, east of the lid, will create a safe north-south connection between the Washington Park Arboretum and East Montlake Park.

You can find an overview of the planned bicycle and pedestrian improvements in SR 520’s Seattle corridor on pages 6 and 7 of the 2016 Final Concept Design report (PDF 6.54MB).

Want additional information on future SR 520 construction phases? Visit our I-5 to Lake Washington page.

Seattle connections

map of a temporary biking and walking trail across SR 520 during Montlake Project construction

Please note:

  • The connection between the Lake Washington Loop Trail and Arboretum Loop Trail uses the pedestrian bridge over Lake Washington Boulevard at East Lynn Street.
  • Shelby Street is one-way westbound and Hamlin Street is one-way eastbound.

Eastside trail connections

Bellevue area

A map of the Bellevue area with the state route 520 trail, the points loop trail and the cross kirkland corridor trail highlighted in various colors.

Redmond area

A map of the Redmond area. The State Route 520 Trail is highlighted as are other regional trails like the Sammamish River Trail.

Trail safety

The SR 520 Trail is designed to be a regional shared-use path, meant for users of all kinds, including commuters, joggers and those out for a weekend adventure. The trail is 14 feet wide to allow for simultaneous use. Please be courteous while on the path and watch for others.

The path features safety designs including knee-level lighting all the way across the lake, a protective barrier between the path and adjacent traffic, and a specially designed railing that provides views of the lake while keeping everyone safe.

Keep in mind that the trail is not meant for high speeds, as speed can create a safety risk for others on the path. Reduced speeds can also help minimize the effect to riders as they pass over the trail’s steel cover plates.

Trail closures

Find the most up-to-date information about trail closures on our Construction Corner webpage.

Closure of 24th Avenue East crossing in Montlake

During the current phase of SR 520 construction -- the Montlake Project -- the 24th Avenue East overpass is closed to bikes and pedestrians. This crossing previously connected the SR 520 Trail to the Lake Washington Loop trail. The 24th Avenue East overpass is being reconstructed and incorporated into a new Montlake lid. To do this, the contractor had to close this highway crossing to bicycle and pedestrian traffic. An alternate north-south shared-use path from Lake Washington Boulevard under SR 520 opened in Montlake in March 2020.  
Additionally, Montlake Project construction may require intermittent SR 520 Trail closures. WSDOT and contractors will do our best to minimize the impacts and will provide advance notice of any trail closures. Visit our Construction Construction webpage for information on upcoming closures.

Helpful resources for walking and bicycling in the SR 520 corridor


Phone: 206-770-3554  (staffed 8-5, Mon-Fri)