The Sound Transit Board identified the preferred alternative for the West Seattle Link Extension on July 28, 2022 and the Ballard Link Extension on March 23, 2023. For details, please view the July 2022 press release and Board Motion and the March 2023 press release and Board MotionOn July 27, 2023, the Board modified the preferred location for the Denny Station for the Ballard Link Extension. For details, view the July 2023 Board Motion.

About the projects

The West Seattle and Ballard Link Extensions (WSBLE) projects will provide fast, reliable light rail connections to dense residential and job centers throughout the region. In addition, a new downtown Seattle light rail tunnel will provide capacity for the entire regional system to operate efficiently. These two separate Link extensions projects are part of the regional transit system expansion approved by voters in November 2016 and as of May 2023 are on two separate environmental review processes and timelines.

The West Seattle and Ballard Link Extensions were evaluated together in the WSBLE Draft EIS published in January 2022. As described in the WSBLE Draft EIS, the two extensions will function as two separate lines, with the West Seattle Link Extension (WSLE) connecting to Everett and the Ballard Link Extension (BLE) connecting to Tacoma.

The extensions were initially on the same environmental review timeline. However, given additional environmental review needed for project refinements for BLE resulting from the Sound Transit Board action in March 2023, environmental review for the two extensions will now proceed on different timelines.

WSLE will proceed to a Final EIS, which is anticipated to be published in 2024, while a new Draft EIS will be completed for BLE to reflect action by the Sound Transit Board in March 2023. The BLE alternatives will be updated, including analysis of the preferred alternative, as well as other refinements and alternatives identified in the March 2023 Board Motion. The new BLE Draft EIS will build upon and incorporate the existing work to date on the WSBLE Draft EIS including all previous scoping comments, public outreach and feedback and environmental analysis. The BLE environmental review timeline will be updated when it is available. 

West Seattle Link Extension (WSLE)

  • Adds 4.1 miles of light rail service from downtown Seattle to West Seattle's Alaska Junction neighborhood.
  • Includes four new stations from SODO to Alaska Junction.
  • Start of service scheduled for 2032.
Learn about WSLE stations and alternatives

Ballard Link Extension (BLE)

  • Adds 7.7 miles of light rail service from downtown Seattle to Ballard, including a new downtown Seattle rail-only tunnel.
  • Includes nine new stations from Chinatown-International District to Market Street.
  • Start of service scheduled for 2039.
Learn about BLE stations and alternatives

West Seattle and Ballard Link Extensions Map

An image of the West Seattle and Ballard Link Extensions project map that displays the preferred alternatives and other alternatives we are currently evaluating. The map also includes station locations, and describes if an alternative is elevated, in a tunnel or at-grade. Preferred and other alternatives we are currently evaluating.

Stay engaged!

Get upcoming project news and public involvement opportunities.

Learn the latest

Both the Ballard Link Extension and West Seattle Link Extension projects were studied together as part of the WSBLE Draft EIS document published in January 2022. Moving forward, the projects will have separate environmental review milestones and documents. We’ll adjust our engagement efforts for each extension, based on upcoming project milestones. That means that any future environmental documents will be published separately for Ballard Link Extension and West Seattle Link Extension, with unique engagement or notification efforts. You can continue to find information you need on this site, or by contacting our engagement team.

How did we get here?

WSBLE Draft EIS

The West Seattle and Ballard Link Extensions (WSBLE) projects were evaluated together in a Draft Environmental Impact Statement (EIS), which was published on Jan. 28, 2022 and followed by a 90-day public comment period. The WSBLE Draft EIS was developed to help Sound Transit, as well as partner agencies and the public, to better understand the potential impacts and benefits of the projects, evaluate potential impacts and benefits of the alternatives on the natural and built environment and transportation system, and identify potential mitigation measures.

In July 2022, after reviewing the WSBLE Draft EIS and the comments from Tribes, the public and agency partners, the Sound Transit Board identified the preferred alternative for the West Seattle Link Extension and requested further study for the Ballard Link Extension. Read the July 2022 press release and Board Motion for more information.

After a period of further studies from August 2022 to February 2023, the Sound Transit Board identified a preferred alternative for the Ballard Link Extension. Read the March 2023 Board Motion and press release for more information. 

The extensions were initially on the same environmental review timeline. However, given additional environmental review needed for project refinements for BLE resulting from the Sound Transit Board action in March 2023, environmental review for the two extensions will now proceed on different timelines. 

WSLE will proceed to a Final EIS, which is anticipated to be published in 2024, while a new Draft EIS will be completed for BLE to reflect action by the Sound Transit Board in March 2023. The BLE alternatives will be updated, including analysis of the preferred alternative, as well as other refinements and alternatives identified in March 2023 Board Motion.  The new BLE Draft EIS will build upon and incorporate the existing work to date on the WSBLE Draft EIS including all previous scoping comments, public outreach and feedback and environmental analysis. The BLE environmental review timeline will be updated when it is available.

We'll adjust our engagement efforts for each extension, based on upcoming milestones for each project. For information about ongoing environmental review, visit the West Seattle Link Extension project page and the Ballard Link Extension project page

Want to take another look at the WSBLE Draft EIS?

You can still explore the WSBLE Draft EIS*. The Executive Summary provides an overview, condensing the larger Draft EIS to help readers quickly become acquainted with the projects.

WSBLE Draft EIS Executive Summary

You can view the entire WSBLE Draft EIS document online. 

*After the WSBLE Draft EIS was published in January 2022, the Sound Transit Board identified different preferred alternatives than what are shown in the WSBLE Draft EIS. To learn more, visit the West Seattle Link Extension project page and the Ballard Link Extension project page

Equity and inclusion

Sound Transit is committed to centering communities along the project corridor and engaging communities of color and low-income and other vulnerable populations throughout the public involvement process. During the environmental review process, Sound Transit conducted an environmental justice analysis, which is included in the WSBLE Draft EIS. The analysis:

  • Describes the demographics of the project corridor.
  • Evaluates whether the projects would result in disproportionately high and adverse effects to communities of color and low-income communities.
  • Considers potential project benefits such as improved access to opportunity.
  • Documents our efforts to involve communities of color and low-income populations in the planning process and what we have heard so far from outreach efforts.

Along with the Draft EIS environmental justice analysis, Sound Transit and the City of Seattle have partnered on the Racial Equity Toolkit (RET) process for the projects. The RET lays out a process and a set of questions to guide the development, implementation and evaluation of the projects to advance racial equity. The RET process began early in project development, informing data analysis, technical evaluation and the focus and extent of community engagement. During the environmental review phase, the RET builds on the environmental justice assessment for the projects, documenting potential project impacts and benefits, and community feedback. However, given that the RET process is guided by a different framework than the EIS environmental justice requirements, the report on the RET process and findings is structured differently, and is oriented around RET outcomes for the projects. Our RET report on the process, requirements, outcomes, findings and community feedback is available for your reference. 

Further studies

Further studies

Overview

A person participating in a stickering exercise at a CID workshop.

In July 2022, the Sound Transit Board directed the project team to complete additional further studies. Staff held community workshops, open houses, stakeholder meetings and surveys between September 2022 and January 2023.

For an overview of the further studies conducted for both extensions and the results, read the Further Studies Executive Summary and reports or the Further Studies Engagement Summary. Descriptions and key findings for each further study are included below by segment. 

Property Owners

In order to build the West Seattle and Ballard Link Extensions projects, Sound Transit will need to purchase and use private property. In some cases, this means moving people from their homes or businesses.

Sound Transit’s property acquisition process treats affected property owners and tenants fairly, provides appropriate Just Compensation and relocation benefits and minimizes hardships with all parties involved. We realize that the possibility of being relocated from your home or business may be difficult and we are here to answer questions and provide support throughout the process.

Sound Transit has specific policies and procedures that describe how the agency will work with property owners and tenants throughout the acquisition process. We follow federal, state and local laws in our property acquisition process, more specifically the Uniform Relocation Assistance and Real Property Acquisition Policies Act, as well as state law.

Property acquisition milestones

Pre-Draft EIS publication

  • Sound Transit contacts potentially affected property owners 

Draft EIS publication

  • Draft EIS available for public review and comments 
  • Sound Transit Board confirms or modifies the preferred alternative based on comments from the public, agency partners and Tribes 

Final EIS publication

  • Sound Transit Board selects projects to be built

Final Design

  • Sound Transit identifies property rights needed to construct, operate and maintain the system
  • Sound Transit Board authorizes property purchases
  • Sound Transit will prepare an appraisal to determine fair market value of property needed for the projects
  • Sound Transit will provide relocation assistance to people and businesses displaced by the projects, including referrals to comparable properties and payment of moving costs
  • Sound Transit staff are available to support property owners and tenants through this process

Without concrete decisions until the release of each project's Final EIS, we know this period of uncertainty can be stressful and are here to help. If you have additional questions or would like to set up a virtual meeting, contact our outreach team at westseattlelink@soundtransit.org, ballardlink@soundtransit.org or 206-903-7229.

Frequently Asked Questions

A Link light rail train travels over a roadway on an elevated track with Mt. Rainier in the background.
The alternatives reviewed within the WSBLE Draft EIS included both underground and elevated tracks like the one above.

Get involved

There are multiple opportunities to get engaged with the projects.

Talk to project staff

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Request a briefing or meeting with us; we are happy to meet with you or your community group online with opportunities to hold in-person briefings once safe to do so

Stay engaged

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Follow us on social media @SoundTransit

Contact us

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Call the project line at 206-903-7229 to speak with a community engagement specialist
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Email with questions, concerns or comments: westseattlelink@soundtransit.org ballardlink@soundtransit.org
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Your input is vital to the success of the projects.