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Two trains passing north and south at Columbia City Station in Seattle.
Media Caption
The first phase of work replaced platform tiles at Columbia City Station.

Plan ahead for upcoming 1 Line maintenance

Work prepares system for smooth transition to 33 miles of new light rail extensions

Publish Date

(Editor's note: This post will be updated periodically to reflect the latest work schedules)

Getting ready for the 33 miles of Link extensions coming over the next three years involves a lot more than just construction on the extensions.

It also means making sure that our existing operations are in top condition as we prepare to tie the new extensions into our current one.

This work is getting us ready for the future, which is why we’re calling it Future Ready.

Starting in July through 2023, we’re going to have a series of construction and maintenance activities that will help us prepare for the transformative changes ahead.

But these Future Ready activities mean that passengers will need to prepare for intermittent periods of less frequent service and replacement bus service when available.

November overhead wire sectioning project in the downtown Seattle tunnel

The next project will take place Nov. 11-13 and disrupt travel between Capitol Hill and SODO stations.

The work will divide the electrical system within downtown stations into four sections, which will allow for future maintenance to occur while maintaining service. 

Since service between these stations will be suspended, travelers will need to transfer to a free Link bus shuttle during the closure.

Link service will be operating every 15 minutes and the Link shuttle bus will operate approximately every 15 minutes.

We encourage riders to explore other alternative service options, especially on Friday, Nov. 11, to best meet your needs.

A table shows alternative service options on Friday, Nov. 11.

Please allow for extra time in order to reach your destination, especially when going to the airport.

We will post updates and rider alerts that include specific dates and durations for upcoming projects as details are finalized.

Time period Travel Impact

Friday Aug. 19 - Thursday Sept. 1 

1 Line train frequencies will be reduced to 20 minutes between Angle Lake and Stadium stations. The work requires the closure of one track at Columbia City Station, forcing all trains to use a single track between Mount Baker and Othello stations. 

Trains will run approximately every 10 minutes between Northgate and Stadium stations from 6 a.m. to 10 p.m. During these hours every other train heading south from Northgate will turn back at Stadium Station. The trains exterior signs will say if they are headed to SeaTac/Angle Lake or Stadium.

From 5 - 6 a.m. and from 10 p.m. - 1 a.m. trains will run every 20 minutes systemwide. No southbound trains will turn back at Stadium Station. 


Saturday, Oct. 22 to Wednesday, Oct. 26 


In order to repair and replace the overhead catenary system, Link will be shut down between Rainier Beach and Tukwila International Blvd. stations with a free Link bus shuttle running every 10 minutes, connecting passengers between these two stations. Link will operate every 10 minutes between Northgate and Rainier Beach and every 12 minutes between Angle Lake and Tukwila stations. Trains will run every 15 minutes before 6 a.m. and after 10 p.m. 

Friday, Nov. 11 to Sunday, Nov. 13

Free bus shuttles replace 1 Line service between Capitol Hill and SODO stations for overhead power systems work in the Downtown Seattle Transit Tunnel. Buses will serve all stations and run approximately every 15 minutes on Friday, Saturday and Sunday. Link will operate between Angle Lake and SODO stations every 15 minutes.

Q1 2023

Additional track work in the Downtown Seattle Transit Tunnel is needed to maintain the aging tracks through that area. Impacts are still to be determined.
Q1 2023 This work is needed to complete connections between the current 1-Line service and new 2-Line tracks that will link riders to the Eastside. Impacts are still to be determined.

To get the latest information about these service disruptions, make sure you sign up for Rider Alerts.

Doing this work now means we will impact far fewer riders now than if we delayed them until after further expansions open.

While the disruptions that this work will cause are unavoidable, we will work hard to minimize the impact on service to our riders. The end result will be a safe and improved system ready for our next phase of growth.

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