West Seattle Link Extension Project
PROJECT WEBSITE: West Seattle Link Extension Project
All dates below are specific to the schedule of the Environmental Review and Permitting processes for this project.
ENVIRONMENTAL REVIEW AND PERMITTING STATUS
IN PROGRESS
ESTIMATED COMPLETION DATE OF ENVIRONMENTAL REVIEW AND PERMITTING
06/02/2026
ENVIRONMENTAL REVIEW AND PERMITTING PROCESSES
COMPLETED
SECTOR
Surface Transportation
CATEGORY
Project Category
DOT Projects
LEAD AGENCY
Department of Transportation, Federal Transit Administration
Other Agencies with Actions or Authorizations:
Department of the Army, US Army Corps of Engineers - Regulatory
Department of the Interior, Fish and Wildlife Service
Department of Commerce, National Oceanic and Atmospheric Administration
Description:
The West Seattle Link Extension project proposed by Sound Transit would expand Link light rail from downtown Seattle to West Seattle’s Alaska Junction in Seattle, King County, Washington. The project is approximately 4.1 miles. It includes a mix of elevated, at-grade, and tunnel configuration as well as four stations that serve the following areas: Alaska Junction, Avalon, Delridge and SODO.
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Permitting Timetable
The permitting timetable below displays data as reported by agencies. Dates for Environmental Review and Permitting processes (Actions) that are in 'Paused' or 'Planned' status are subject to change and are not indicative of a project's final schedule.
- For information about extensions, select an Action from the timetable below and select 'View Action Details' at the bottom of the page.
Action Information
For additional information, please select an Action from the Permitting Timetable above.
- Action:
- Responsible Agency:
- Bureau:
- Action Status:
- SHPO:
- Action Identifier:
- Action Outcome:
| Milestone | Original Target Date | Current Target Date | Milestone Complete |
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