Sound Transit Link 1 Line
|System||Link Light Rail|
|Type||Light rail transit|
|Number of stations||19|
|Cities serviced||Seattle, Tukwila, SeaTac|
|Opened||July 18, 2009|
|Owner||Sound Transit (1999–present)|
|Operator||King County Metro|
|Rolling stock||Sound Transit 101-135 |
Sound Transit 136-162
Sound Transit 201-352
|Line length||24.65 mi (39.67 km)|
|Track gauge||1,435 mm (4 ft 8 1⁄2 in)|
|Electrification||1500V DC Overhead|
|Operating speed||89 km/h (55 mph)|
Sound Transit Link 1 Line is a light rail line operated by Sound Transit in Seattle and the surrounding area. Operations for the 1 line are currently under contract to King County Metro, which operates all train services. The 1 Line is currently the only Central Link line, though more lines are planned with future system expansions.
The route starts with Northgate Station at the northern end, runs via the University of Washington, Capitol Hill, Downtown Seattle Transit Tunnel, Beacon Hill, Rainier Valley, and Sea-Tac Airport, with Angle Lake Station being the southern terminus.
Stations are listed in order, traveling from North to South.
- U District
- University of Washington
- Capitol Hill
- Westlake Connection to South Lake Union Streetcar
- University Street
- Pioneer Square
- International District / Chinatown Connection to N Line, S Line, First Hill Streetcar. Connection to 2 Line in 2025.
- Beacon Hill
- Mount Baker
- Columbia City
- Rainier Beach
- Tukwila International Boulevard
- SeaTac / Airport
- Angle Lake
|Peak Hours||8 mins.|
|Late Night||15 mins.|
|Early Mornings||12 mins.|
First and Last Trains
|Northgate to Angle Lake|
|First Train from
|First Train||Last Train|
|Weekdays||4:15 a.m.||4:51 a.m.||12:28 a.m.|
|Saturdays||4:11 a.m.||4:51 a.m.||12:28 a.m.|
|Sundays/Holidays||5:06 a.m.||5:33 a.m.||11:28 a.m.|
* The first Southbound trains of the day start at Beacon Hill Station.
* The first several trains of the day start at SODO Station.
** The last several trains of the night terminate at Stadium Station.
- July 18, 2009 - Service starts from Westlake Station to Tukwila International Boulevard Station.
- December 19, 2009 - Service starts from Tukwila International Boulevard Station to SeaTac / Airport Station.
- March 19, 2016 - University link extension opened for service. Added Capitol Hill Station and University of Washington Station.
- September 24, 2016 - Angle Lake Station opened for service.
- March 23, 2019 - End of joint bus/light rail operations in the Downtown Transit Tunnel.
- September 21, 2019 - Section from University of Washington Station to Angle Lake Station renamed Red Line
- October 2, 2021 - Section from Northgate Station to Angle Lake Station renamed 1 Line
- October 2, 2021 - Northgate section opened, added U District, Roosevelt and Northgate stations.
Lynnwood Extention(Planned Opening Summer 2024) North From Northgate Station
Federal Way Extension (Planned Opening 2025-2026) South From Angle Lake Station
- Summer 2024 - 1 Line extension to Lynnwood
- 2030-2031 - 1 Line extension to Tacoma Dome
- 2037-2039 - 1 Line rerouted north of downtown Seattle on extension to Ballard