2nd Ave S Extension and S Jackson St Bridge Planning Study

Updated: April 8, 2024

What's Happening Now?

We are currently collecting and analyzing data, developing design concepts, and reaching out to stakeholders and community groups in the area for your feedback on whether to repair or replace these bridges.

If you are interested in future updates and engagement opportunities, please subscribe to the 2nd Ave & Jackson Bridge Study email topic. This topic can be found under the "Traffic and Construction" header.

Study Overview

The 2nd Ave S Extension and S Jackson St Bridge Planning Study will look at options for repairing or replacing two aging bridges in the Jackson Hub area: Bridge 33W (S Jackson St between 4th Ave S and 5th Ave S) and Bridge 7 (2nd Ave S Ext between S Jackson St and 4th Ave S).

The study will help us plan for the long-term future of these two essential bridge structures and inform ongoing planning and design work resulting in potential future repair, retrofit, or replacement of these structures. In the coming years, the city will pursue funding and determine the best timing for these next steps.

project map showing the two bridges that will be studied

Study Timeline

  • Fall 2023 - Study Kickoff
  • Winter 2024 - Data collection, initial analyses, and definition of evaluation criteria
  • Spring 2024 - Ongoing analyses and concept development
  • Summer 2024 - Alternatives analysis and evaluation
  • Fall 2024 - Study completion 


The Jackson Hub area is one of Seattle’s major multimodal transportation hubs—bringing together buses from King County Metro and private operators, light rail and passenger service from Sound Transit and Amtrak, the First Hill Streetcar, and BNSF freight trains—and a critical connection point between two of the City’s historic neighborhoods—Pioneer Square and Chinatown/International District. The area is also home to a complex and interconnected—though not always obvious—network of nine bridges.

As part of the Levy to Move Seattle, funds have been allocated to study the future of two bridges in this area: Bridge 33 W (South Jackson St between 4th Ave and 5th Ave) and Bridge 7 (2nd Ave S Ext between S Jackson St and 4th Ave). This effort is part of SDOT’s Bridge Rehabilitation and Replacement Program to better understand the size of Seattle's maintenance backlog and better prepare us for future investments.

As the City shapes its future for the Jackson Hub area, we will consider replacement and/or rehabilitation options for the study structures that support that future vision. We will consider the various modes of traveling through the area, future environmental and transit goals, agency requirements, neighborhood impacts, and community feedback throughout the study process.

Nearby Projects and Partnerships We're Coordinating With



Greg Spotts, Director
Address: 700 5th Ave, Suite 3800, Seattle, WA, 98104
Mailing Address: PO Box 34996, Seattle, WA, 98124-4996
Phone: (206) 684-7623

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The Seattle Department of Transportation (SDOT) is on a mission to deliver a transportation system that provides safe and affordable access to places and opportunities for everyone as we work to achieve our vision of Seattle as a thriving, equitable community powered by dependable transportation.