Getting ready for the 33 miles of Link extensions coming over the next few years involves a lot more than just construction on the projects themselves. It also means making sure that our existing operations are in top condition as we prepare to expand our transit system across the region.
As with any system that begins to age, the vehicles, tracks and facilities require maintenance so that our system can continue operating in a safe and reliable manner. This means that passengers will need to prepare for intermittent periods of less frequent service and replacement bus service when available.
Link light rail
Summer rail replacement
| Start date | End date | Stations affected | Impact | Alternate service |
| May 21 | July 31 | Systemwide | After 11 p.m. on some dates (May 21, May 28, June 4, June 11, June 25, July 9 and 10, July 16, July 23 and 24, and July 30 and 31), trains will arrive every 20 minutes until end of service. | View alternate service maps |
SeaTac/Airport platform tile replacement
From July 15 to Sept. 6, Sound Transit will replace platform edge tile at SeaTac/Airport Station.
Work will begin at 10 p.m. each weeknight and will stop before train service starts the following morning. During this time, southbound and northbound trains may arrive on the opposite platform. Passengers should pay attention to the destination of the train before boarding.
Sounder trains
There are no planned service disruptions for Sounder at this time.
ST Express buses
There are no planned service disruptions for ST Express buses at this time.