Tacoma Trestle

Sound Transit is replacing the wooden single-track railroad trestle east of Freighthouse Square with a modern, double-track bridge. The new bridge will increase passenger and rail capacity along the corridor and improve reliability for Sounder and Amtrak passenger service. The existing wooden trestle would require structural upgrades within five years to support current and increased rail operations. 

To replace the trestle, crews will demolish the current 0.65 mile-long wood structure and construct a new double-track rail bridge over South 26th and East G streets and crossover tracks. Other improvements include building an expanded passenger platform to accommodate Amtrak passenger trains, making minor street repairs, relocating some utilities, replacing retaining walls at both ends of the bridge and upgrading the railroad signals. 

In 2008, voters approved the Tacoma Trestle Track and Signal project as part of the Sound Transit 2 ballot measure; the total Tacoma Trestle project budget is $61 million (2014 dollars). In 2013, Sound Transit received a $10 million grant from the U.S. Department of Transportation's Transportation Investment Generating Economic Recovery (TIGER) program. This allowed Sound Transit to accelerate the project schedule from 2023 to 2017 to coincide with the opening of the new Amtrak Station. This updated schedule accommodates three additional Sounder south line round trips and completion of the Washington State Department of Transportation Point Defiance Bypass Project.

Amtrak connections at Freighthouse Square

The Washington State Department of Transportation (WSDOT) is developing design plans for the Point Defiance Bypass project that will allow Amtrak trains to serve Freighthouse Square. The state's current schedule would reroute all Amtrak service by late 2017, a move that would consolidate all passenger rail service in one location.  


Summer 2013 Conceptual engineering / environmental review

2014 Preliminary engineering/environmental: 30 percent design concept, Environmental work including SEPA, archaeological survey and wetlands survey and impact analysis

Nov. 2014 - Summer 2015 Final design: 60 and 90 percent design including aesthetic/architectural elements, construction impacts and identify construction mitigation, develop business mitigation proram, test pile program and public involvement

2015 - 2017 Construction

2017 Completed project, fully operational

Outreach staff

Erin Hunter Erin Hunter
Title: Community Outreach Corridor Supervisor
Office Phone: 206-370-5511
Email Address: erin.hunter@soundtransit.org

Latest news

Tacoma Trestle Folio
Mar 19, 2015: Project information and overview

Tacoma Trestle Open House Summary
Dec 16, 2014: Summary of open houses

Display Boards - Tacoma Trestle Open House
Nov 13, 2014: Display boards for the Tacoma Trestle track & signal project open house

Positive train control equipment installation update
Aug 11, 2014: Additional safety technology equipment being installed between Tacoma and Lakewood

Get involved

Sound Transit is committed to communicating with Tacoma residents and businesses about the project and providing meaningful opportunities to get involved. You can:

  • Receive advance notice about public meetings and opportunities to provide input through local newspapers, blogs, project mailings and this website. Subscribe
  • Attend public meetings to hear project updates, learn how decisions will be made and provide comments.