Ongoing: Spring 2024 disruption
This spring, Sound Transit will be performing work that will affect 1 Line service. The changes will vary between May 12 and June 25, with the more impactful work happening June 1-2 and June 21-23. You can find a graphic of these disruptions here.
See below for a list of what service levels you should expect on the 1 Line during this time. For details about these system expansion and state-of-good-repair projects, visit The Platform.
Rail replacement
Impacted stations: Systemwide.
| Start date | End date | Impact |
| 5/21/24 | 6/25/24 | After 11 p.m. on Tuesdays between May 21 and June 25, trains will arrive every 20 minutes until end of service. |
Federal Way Link Extension tie-in work
Impacted stations: SeaTac/Airport, Angle Lake.
| Start date | End date | Impact |
| 5/12/24 | 6/1/24 | Trains share the Northgate-destined (northbound) tracks. A train will run between SeaTac/Airport and Angle Lake stations, operating every 16-20 minutes. All passengers who need to travel through SeaTac Station must transfer to another train. |
| 6/1/2024 | 6/2/2024 | The 1 Line will be closed between SeaTac/Airport and Angle Lake stations all day on June 1 and will open after 10 a.m. on June 2. All passengers must transfer to King County Metro's A Line to travel between these stations during this time. Transfers between the two modes are free during the full closure. |
| 6/2/24 | 6/21/24 | Trains will share the Angle Lake-destined (southbound) platform between SeaTac/Airport and Angle Lake stations. A train will run between SeaTac/Airport and Angle Lake stations, operating every 16-20 minutes. All passengers who need to travel through SeaTac Station must transfer to another train. |
| 6/22/24 | 6/22/24 | The 1 Line will be closed between SeaTac/Airport and Angle Lake stations, all day on June 22. All passengers must transfer to King County Metro's A Line to travel between these stations during this time. Transfers between the two modes are free during the full closure. |
Columbia City Station retiling
Impacted stations: Stadium, SODO, Beacon Hill, Mount Baker, Columbia City, Othello, Rainier Beach, Tukwila Int'l Blvd, SeaTac/Airport, Angle Lake.
| Start date | End date | Impact |
| 6/1/24 | 6/2/24 | Trains will every 20 minutes between Stadium and SeaTac/Airport stations to accommodate construction at Columbia City Station. Passengers on trains that end at Stadium Station will need to board the next train destined for SeaTac/Airport or Angle Lake to complete their journey. |
| 6/1/24 | 6/2/24 | One platform at a time will be closed at Columbia City Station for platform repair work. The Northgate-destined (northbound) platform will be closed at Columbia City Station all day on June 1, so passengers must board and deboard all trains on the Angle Lake-destined (southbound) platform. The Angle Lake-destined (southbound) platform will be closed on June 2, so passengers must board and deboard all trains on the Northgate-destined (northbound) platform. |
East Link tie-in work
Impacted stations: Capitol Hill, Westlake, University Street, Pioneer Square, Int’l District/Chinatown, Stadium, SODO.
| Start date | End date | Impact |
| 6/21/24 | 6/23/24 | Downtown Seattle stations will be closed from 10 p.m. on June 21 through the end of service on June 23. Link bus shuttles will run between Capitol Hill–SODO about every 10-15 minutes. On June 21 and 22, trains will run about every 15 minutes between Northgate-Capitol Hill and SODO-SeaTac/Airport stations. On June 23, trains will run between Northgate-Capitol Hill and SODO-Angle Lake stations about every 15 minutes. |