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South Link Connections

As Link light rail expands farther south with three new stations in Kent Des Moines, Star Lake and Downtown Federal Way, the South Link Connections project aims to improve transportation options for communities in South King County. Metro is working with Sound Transit Opens in a new tab and other partners to create a new transit network based on community feedback.

Project overview

As soon as 2026, Sound Transit will expand Link light rail south with three new stations: Kent Des Moines, Star Lake and Federal Way Downtown. Changes to the ST Express buses in the area may also occur.

To improve the transit network for everyone, Metro has started a project for the South King County communities of Algona, Auburn, Burien, Des Moines, Federal Way, Kent, Normandy Park, Pacific, SeaTac, Tukwila and parts of unincorporated King County. This project will create a new transit network that connects Metro buses with Link light rail, ST Express buses and Pierce Transit services in King County. Metro is working together with Sound Transit and other transit agencies and cities on this effort. The new transit network will be put in place around the same time the new Link light rail stations open.

Project goals

  • Improve travel options for priority populations (as defined by the Metro’s adopted policies).
  • Engage and inform the community about transit changes.
  • Offer integrated services that meet community needs.
  • Enhance the overall efficiency and sustainability of the transit network.

Quick definitions

A fixed-route service with the flexibility to pick up and drop off passengers in requested locations specific to their area. Usually a small bus.

The number of minutes between bus trips.

Bus service scheduled to run approximately every 15 minutes or better from 6 am to 7 pm on weekdays, and every 30 minutes or better on evenings and weekends.

An on–demand transit service that provides rides within multiple King County neighborhoods. Riders can book rides using the Metro Flex smartphone app or with a phone call to the reservation line.

Transit service that operates during peak travel periods (from 6 to 9 am and from 3 to 7 pm on weekdays).

Community members who are Black, Indigenous and of color; have low or no income; are immigrants or refugees; have disabilities; or are linguistically diverse.

Sound Transit

All types of public transportation in an area that work together to help people travel. This includes bus, rail, train, flexible services, etc.

Project mobility priorities

Metro gathered community feedback in multiple ways in Phase 1 and worked with the Mobility Board to set the five main priorities below. Metro used these priorities to inform the proposed changes to the transit network.

Greater transit coverage

Improved early morning and nighttime service

Faster travel times within and beyond the project area

Improved east-west transit connections

Increased weekend service, especially on Saturdays

Metro will continue working with our partners on other identified needs including:

  • Maintaining and improving bus frequencies.
  • Enhancing midday service during weekdays.
  • Making transfers easier within the South Link Connections project area.
  • Improving safety and comfort at transit stops and on buses/trains.
  • Increasing reliability and on-time trips.

Phase 3 network proposal

Metro has used the priorities above, best practices in service design and equity considerations to suggest updates to the transit network in South King County.

Key points of the Phase 3 proposal

  • New transit connections: Adding new connections to future Link light rail stations.
  • All-day service: Investing in bus routes that operate all day, every day, with 47% more trips on weekdays and 80% more weekends trips.
  • New and improved weekend service: New service on Saturdays and Sundays in Burien and new service on Sundays between Kent and Federal Way. More frequent service on weekends between Kent Des Moines Station, Kent Station, Kent East Hill and Green River College. In total, the Phase 3 network would provide 61% more trips on Saturday and twice as many trips on Sunday when compared to today.
  • Improved east-west service: Enhancing important routes across the area, including:
    • New frequent service connecting Highline College, Kent Station and Green River College.
    • Frequent service between Twin Lakes Park & Ride, Federal Way Downtown Station and Auburn Station.
  • On-demand services: Launching two new Metro Flex on-demand pilot services in Federal Way and Auburn to connect more people to transit.
  • Faster service: Updating bus routes between West Federal Way and Downtown Federal Way to make this connection quicker, more direct and easier to navigate.
  • Route changes: Removing some commuting routes between South King County and Downtown Seattle to:
    • Avoid overlapping services with Link light rail.
    • Reinvest resources from these routes to enhance the all-day, all-week services that connect to Link light rail.

Take our survey by August 31

South Link Connections proposed network area map.

Tap or select the map to enlarge and explore the proposed network or view the comparison with the current network.

Service changes by type

New service

164, 166, DART 902, Federal Way Link Extension, South Auburn Metro Flex pilot, Federal Way Metro Flex pilot

Improved service

181, 182, 183, DART 631, DART 903

Revised service

156, 187, 193

No change to service

A Line

Removed routes

121*, 122*, 123*, 154*, 157*, 162, 165, 177, 178*, 179*, 190*, 197*, DART 901

*Routes that are currently suspended/not operating

Service changes by area

The South Link Connections project is divided into two areas: north and south. The north area includes Burien, Des Moines, Kent, Normandy Park, SeaTac and Tukwila. The south area includes Auburn, Algona, Federal Way and Pacific. To learn more about the proposed changes in your area, select the north area and south area tabs below.

Process and timeline

  • March to May 2024

    Phase 1: Needs assessment

    During the first phase of engagement, Metro shared information about the project overview We gathered information about service needs by reviewing existing data and reports from recent engagement, direct feedback from surveys, in-person engagement, conversations with Community-Based Organizations (CBOs) and input from our Partner Review Board and Mobility Board. We analyzed the feedback to find common themes and worked with the Mobility Board to identify key priorities. These priorities helped shape the draft service plan, which we shared for public feedback in the second phase.

  • Winter 2024 to 2025

    Phase 2: Service concepts

    During the second phase of engagement Metro shared proposed route changes based on Phase 1 feedback. We collected feedback on the proposed changes to better understand community priorities and how they should guide any updates to the plan. We gathered direct feedback from surveys, in-person engagement and conversations with Community-Based Organizations (CBOs). We informed people about how to get involved through social media campaigns, blog posts in different languages, ads in diverse media, text and email Transit Alerts, Rider Alert signs at bus stops and transit centers, and shared information in multiple languages online and in print. We brought together the Mobility Board and Partner Review Board to talk about the impacts of Phase 2 on equity, what we learned from community engagement, and the main pros and cons of different transit network options.

    Phase 2 Engagement Summary

  • Summer 2025

    Current phase

    Phase 3: Service proposal

    In the final phase of engagement, Metro will share updated service plans with the public, explaining how community input from Phase 2 influenced these updates. We will seek feedback on how to improve the plans before finalizing them. We will also summarize the earlier phases of the project, explain how community feedback shaped the final plan and discuss the next steps. Metro will work with the Mobility board and Partner Review Board to finalize the South Link Connections proposal this fall. The King County Council is expected to take action early 2026.

Ways to participate

Through a deliberate and transparent three-phase community engagement process, Metro removes barriers and provides opportunities for South King County communities to express their transit needs and have a meaningful role in shaping Metro’s route changes. Metro works with local communities, particularly priority populations who have been historically left out of decision-making conversations and have been disproportionately impacted by these decisions, using meaningful, inclusive and community-driven approaches. We work together to inform, gather feedback, evaluate and decide the best route changes for South King County communities.

Take our survey by August 31

During phase 1, Metro formed a South Link Connections Mobility Board representative of the project area and equitably represents groups of people historically left out of decision-making conversations related to transit and who are disproportionately affected by these decisions. The Mobility Board’s primary role is to collaborate with Metro staff to develop and refine a coordinated transit network in South King County.

During the engagement process, Metro meets with external stakeholders who serve as a concept review board, known as the Partner Review Board. The Board includes representatives from local jurisdictions and major institutions in the project area, leaders of community-based organizations and representatives from partner transit agencies. The Partner Review Board’s primary role is to review and provide comment on service concepts developed by the Mobility Board. If your organization is within the service area and is interested in joining the Partner Review Board, please complete the short inquiry form.

Equity Impact Review

The South Link Connections project will include an Equity Impact Review (EIR) study to ensure proposed route changes will improve mobility and access to transportation for historically underserved populations in King County. At each phase of the planning process, Metro will review technical data and results from engagement with priority populations to understand the anticipated impact to underserved communities and inform planning decisions.

The EIR analysis, community engagement feedback and service design best practices will all inform the proposed changes in the South Link Connections project.

Contact us

Please reach out to us in your preferred language by email at: haveasay@kingcounty.gov

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