Closures this weekend: Montlake Boulevard, Mercer Street on-ramp to northbound I-5, and southbound I-5 off-ramp to Mercer Street

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:


Reminder: Montlake Boulevard closed this weekend

Crews will close Montlake Boulevard in both directions between East Louisa Street and East Hamlin Street starting at 10 p.m. tonight, Friday, Oct. 27, until 5 a.m. Monday, Oct. 30 for utility work on Montlake Boulevard and continued work on the Montlake lid.

All associated SR 520 on- and off-ramps in Montlake will also be closed. A pedestrian and bike route will be available through the area. The SR 520 Trail will remain open.

Note that travelers heading east from I-5 in Seattle will need to pay the SR 520 bridge toll as the Montlake Boulevard exit will be closed.

Map shows montlake blvd closure map with grey and blue background and closure route in red with text legend at top

Mercer Street on-ramp to northbound I-5 closed this weekend

The Mercer Street on-ramp to northbound I-5, which includes an entrance to the express lanes, will close from 5 a.m. Saturday, Oct. 28 until 5 a.m. Monday, Oct. 30.

Temporary reopening:

On Sunday, Oct. 29, the ramp will reopen for three hours each during the times below for those headed to events in the area. 

  • 3 p.m. until 6 p.m.
  • 9 p.m. until 11:59 p.m.

The Mercer Street on-ramp to southbound I-5 will stay open. 


Overnight closure of southbound I-5 off-ramp to Mercer Street tonight and Saturday night

The southbound I-5 off-ramp to Mercer Street will also close overnight from 10 p.m. until 5 a.m. the next day on Friday, Oct. 27, and Saturday, Oct. 28.

The above Mercer Street ramp closures allow crews to start paving work for the new reversible express lanes ramp at Mercer Street and lay the foundation for a new sign bridge. Travelers should plan for potential delays and use alternate routes.


Construction Corner roundup

  • Ongoing: Montlake Boulevard on-ramp to eastbound SR 520 closed weeknights
  • Oct. 27-30: Montlake Boulevard closed between East Hamlin Street and East Louisa Street
  • Oct. 27 and 28: Southbound I-5 off-ramp to Mercer Street closed overnight
  • Oct. 28-30: Mercer Street on-ramp to northbound I-5 closed

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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中文 - Chinese 翻译服务 如果您难以理解英文,则请致电:(360) 705-7090,或给我们发送电子邮件: TitleVI@WSDOT.WA.GOV,请求获取免费语言援助服务。

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