Heads up! Lake Washington Boulevard and SR 520 overnight closures start next week

There is a horizontal green band that reads Rest of the West News. Above it is the letters W S D O T. An oval on the right reads state route 520.

In this update:


Lake Washington Boulevard closures May 1-19

Starting Monday, May 1, crews will close varying sections of Lake Washington Boulevard around the clock for 19 days. This marks the first of two phases to reconstruct Lake Washington Boulevard. The second phase will start in July/August.

May 1-4: Starting at 7 a.m. Monday, crews will close westbound Lake Washington Boulevard from 24th Avenue East to East Foster Island Road. The westbound SR 520 off-ramp to Lake Washington Boulevard will be open.

Map showing Lake Washington Boulevard. Closure in red for westbound lanes from E Foster Island Rd to 24th Ave E

May 4-6: Starting at 11 p.m. Thursday, crews will close westbound Lake Washington Boulevard from Montlake Boulevard to East Foster Island Road. The westbound SR 520 off-ramp to Lake Washington Boulevard will also be closed.

Map showing Lake Washington Boulevard. Closure in red for westbound lanes from E Foster Island Rd to Montlake and off-ramp

May 6-19: Starting at 10 p.m. Saturday, May 6, crews will close Lake Washington Boulevard – in both directions – from Montlake Boulevard to East Foster Island Road. The westbound SR 520 off-ramp to Lake Washington Boulevard will also be closed.*

Map showing Lake Washington Boulevard. Closure in red for westbound lanes from E Foster Island Rd to Montlake Blvd and off-ramp

*Please note: On Saturday, May 6, crews will reopen the SR 520 off-ramp to Lake Washington Boulevard from 6 a.m. to 10 p.m. to accommodate the first day of boating season.


SR 520 and SR 520 Trail overnight closures next week

These closures will allow crews to work on concrete forms under the new Montlake lid.


Plan ahead: Weekend closure coming for big milestone on the I-5 connection project

Over the weekend of May 19-21, the I-5 express lanes and northbound Interstate 5 near the State Route 520 interchange will close so crews can place steel bridge girders for a new flyover ramp over the freeway.

The closures extend from 10 p.m. Friday, May 19 to 10 a.m. Sunday, May 21. Signed detours with uniformed police officers will guide traffic. The work will require drivers on northbound I-5 to use eastbound SR 520 and Montlake Boulevard to turn around and rejoin northbound I-5 just past the work zone.

Map showing 520/I-5 connection weekend closure and detour route

Please note: People who continue past the Montlake Boulevard exit on eastbound SR 520 will need to pay the SR 520 bridge toll. Plan ahead and prepare for delays. This work is part of the SR 520/I-5 Express Lanes Connection Project.


Meet the I-5 project team during virtual office hours to learn about upcoming construction

You’re invited to an online presentation and Q&A session on Friday, May 12 as we approach a major milestone for the SR 520/I-5 Express Lanes Connection Project.

During the weekend closure from May 19-21, crews will set steel bridge girders for a new flyover ramp. Come ask questions to the project team and learn about what we’ve accomplished and what’s to come.

There will be two one-hour sessions. Use the registration links below to sign up.


Construction Corner roundup

  • May 1-2: Westbound SR 520 closed overnight
  • May 1-4: Westbound Lake Washington Boulevard closed nightly from East Foster Island Road to 24th Avenue East
  • May 3-4: Eastbound SR 520 closed overnight across Lake Washington
  • May 4-6: Westbound Lake Washington Boulevard closed nightly from East Foster Island Road to Montlake Boulevard East; westbound SR 520 off-ramp to Lake Washington Boulevard also closed
  • May 6-19: Lake Washington Boulevard fully closed from Montlake Boulevard to East Foster Island Road; SR 520 westbound off-ramp to Lake Washington Boulevard also closed
  • Ongoing: Montlake Boulevard eastbound on-ramp closed weeknights

Check out the SR 520 Construction Corner map for the most up-to-date information on closures and construction impacts.


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

  • Call or text our project-specific construction hotlines with pressing questions or concerns related to the:
    • Montlake Project: 206-775-8885
    • SR 520/I-5 Connection Project: 206-316-2559 
  • Call the SR 520 Program information line (206-200-9484, 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.
  • Email Regina Glenn, WSDOT Megaprograms Diversity and Inclusion Manager, for more information about contracting opportunities.
  • Follow us on Twitter @wsdot_520 to get key news and updates about the SR 520 program.
  • View current Montlake Project construction photos, taken continuously day and night, by mounted construction cameras
  • Share the ROTW listserv with your friends and neighbors

If you have difficulty understanding English, you may request language assistance services free of charge by calling (360) 705-7090 or emailing TitleVI@WSDOT.WA.GOV.

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