SR 520 Online Open House


Welcome to our online open house regarding the upcoming Portage Bay Bridge and Roanoke Lid Project. The open house also includes information on the SR 520/I-5 Express Lanes Connection Project.

The purpose of this website is to share the latest design concepts for the Portage Bay project and solicit public feedback on them – building on previous SR 520 design outreach.

This open house will remain open until October 2019. In addition, we hosted an in-person open house in June and will hold another one in the fall. Also, we held three topic-specific community stakeholder workshops this summer — in July, August and September — and are having in-depth coordination with the Seattle Design Commission. We periodically update this website as new information is available; the latest updates followed our Sept. 12 community stakeholder workshop.

How to navigate this site

Click through the following pages to learn about the project and previous design processes, and to view current renderings and design concepts. The “Feedback” page gives you the opportunity to provide written comments on the Portage Bay project’s design features.

Aerial view of Portage Bay, the Portage Bay Bridge, and the Queen City and Seattle Yacht Clubs marinas.
An aerial view of Portage Bay and the SR 520 Portage Bay Bridge,
looking east toward Montlake.