SR 520 Bridge Replacement and HOV Program - News and updates

Jan. 13, 2020 | Rest of the West news

In this update:

Upcoming business opportunity for market or food service in Montlake neighborhood

Are you interested in opening a small market or mobile business to serve the Montlake neighborhood during Montlake Project construction? The Washington State Department of Transportation wants to hear from you! WSDOT is providing an opportunity for a vendor to establish and operate a small community market or mobile food service in the area of the former Montlake Market in 2020.

For many years, the Montlake Market served the Montlake neighborhood and travelers passing through the busy interchange. In hopes of offering a reliable, community-focused service in place of the market, this unique opportunity is now available.

Thank you to the nearly 500 individuals who recently participated in WSDOT’s community survey and provided feedback regarding the potential for a temporary service. The survey responses revealed community support for a temporary market/food service and confirmed that many Montlake residents would like to see food services continued in the Montlake neighborhood.

A full Request for Proposal is available online at the WSDOT Ad & Award site. The packet provides more information about the opportunity, proposal requirements, a submission form, and results from the recent community survey that showed significant support for a temporary market/food service.

An informational meeting will be held to provide additional details to interested parties:

  • Date: Tuesday, Jan. 28
  • Time: 3 to 4 p.m.
  • Location: Montlake Project Information Center, 2209 E. North St.
  • RSVP: All proposers interested in attending the informational meeting must RSVP by email no later than 5 p.m. Wednesday, Jan. 22. Please send your name and number of attendees to

Nighttime work and off-ramp closures continue this week

Crews are preparing two large access pits to install a new, 54-inch city water line underneath SR 520. One of the pits will be on the north side of SR 520 in the area between westbound SR 520 and the Montlake Boulevard off-ramp, just east of the Montlake Boulevard overpass. The other pit is at the corner of East North Street and Montlake Boulevard.

To prepare the pit on the north side of SR 520, crews will work nights for the next three weeks. Travelers should expect overnight lane and ramp closures and follow signed detour routes. One of the Montlake-area westbound off-ramps will be open at all times. Crews will use this time to install steel and wood supports for the work pit.

Work on the access pit at the corner of East North Street and Montlake Boulevard is planned to begin later this month. This will require several weeks of roadway closures of East North Street, as well as pedestrian detours and parking restrictions. The work and periodic detours will take place throughout 2020.

An excavator sits on a bed of gravel in front of a house.

Location of the access pit for a 54-inch water line, at the corner of East North Street and Montlake Boulevard.

Jan. 14: SR 520 Montlake Project information session in Medina - RESCHEDULED TO JAN. 22

*Please note - this information session has been rescheduled due to weather conditions, and will now take place Wednesday, Jan. 22

Please join our staff to:

  • Learn about how the Montlake Project will build a new eastbound bridge between Montlake and the floating bridge.
  • Review information at your own speed and have one-on-one conversations with project staff.
  • Learn about the project schedule and what to expect during construction.


  • Date/Time: Jan. 22 from 5:30 to 7:30 p.m.
  • Location: Medina City Hall, 501 Evergreen Point Road, Medina, WA 98039

Heads up, Madison Park! Daytime pile driving to begin near Foster Island

You may have seen the new crane go up last week near the old Arboretum on-ramp. We’re preparing to begin pile driving near Foster Island to build temporary work trestles. You’ll begin to see pile driving in two locations along the old bridge: Foster Island and the west end of the bridge where we started back in November.

As crews work over the lake, neighbors in Madison Park may notice noise and vibration from pile driving. The noisiest part of the work will occur during the day. 

Construction update: crews making progress on Montlake lid

Crews work on a wall of rebar on top of wooden supports next to an overpass. This work is in a highway median.

One of the key features of the Montlake Project is a new lid over the highway. After last fall’s traffic shifts, crews were able to set up a work area to start building the lid’s foundation and central support wall. Through the next few months, you’ll continue to see the structure grow as crews complete the foundation and wall between the Montlake Boulevard and 24th Avenue East overpasses.

You can view more Montlake Project construction photos in the SR 520 Program's Flickr collection.


Jan. 8, 2020 | Rest of the West news

Construction update – third week of operation for new, temporary eastbound on-ramp

If you’ve gotten onto eastbound SR 520 from the Montlake area within the last few weeks, you may have noticed a change. Last month, crews opened a new, temporary on-ramp from Lake Washington Boulevard and permanently closed the aging on-ramp through the Arboretum. This new on-ramp will be open for the next couple of years during Montlake Project construction. The old on-ramp was closed to allow crews to safely remove and replace the seismically vulnerable eastbound bridge. It’s also a part of our commitment to remove all ramps through the Arboretum and help restore it to a more natural state.

An aerial view of S R 520 looking east across union bay. the new eastbound on-ramp is shown in the middle of the photo.


How to reach us and stay informed about SR 520 construction:

  • Call the 24-hour construction hotline (206-775-8885) with pressing Montlake Project questions or concerns.
  • Call the SR 520 Program information line (206-770-3554, M-F 8 a.m. - 5 p.m.) with general SR 520 inquiries.
  • Email SR 520 staff with your questions about the project or construction activities.
  • Visit the SR 520 Construction Corner for the most up-to-date information on closures and construction impacts.
  • Visit the SR 520 Program website to find general information about the project.
  • Visit the Montlake Project Information Center at 2209 E. Lake Washington Blvd., open Mondays and Wednesdays from 12 to 6 p.m., Tuesdays and Thursdays from 8 a.m. to 12 p.m., and the third Saturdays of the month from 9 a.m. to 12 p.m.
  • Follow us on Twitter @wsdot_520 to get key news and updates about the SR 520 program.
  • Stop by in-person at the Montlake Project Information Center (2209 East Lake Washington Boulevard), open Mondays and Wednesdays noon to 6 p.m., Tuesdays and Thursdays 8 a.m. to noon, and the third Saturday of the month, 9 a.m. to noon.

Get weekly updates via email

Visit the WSDOT email updates page, enter your email address, and under "Construction Reports" select one of the following:

"SR 520 Bridge Replacement and HOV Program"
The email update on the entire program, from I-5 to I-405. Includes information on highway closures, construction milestones, and upcoming public meetings.

"SR 520 Rest of the West News"
Construction is underway on our next stage of construction in Seattle -- the Montlake Project. This update focuses squarely on SR 520 construction activities and other project updates in Seattle.