Contact Information:

Public Works Administration
6300 Southcenter Blvd.
Tukwila, WA 98188

Phone: 206 433-0179
Fax: 206 431-3665

Email the Public Works Dept.

BNSF Access Study

Project Overview

The City of Tukwila is partnering with BNSF Railway to study alternative access routes to their intermodal yard in Allentown.

  • Trucks currently access the facility via 42nd Avenue S and S 124th Street through the Allentown neighborhood.
  • The City is building upon previous studies by examining the feasibility of the previously-identified existing route options, evaluating them given current conditions and broad screening criteria.
  • This study is essential in helping the City seek future funding for design and construction from State and Federal sources.

By partnering with BNSF, the City is building on these past studies and is now focusing on the financial and technical feasibility of the alternatives. The exploration of these alternatives is still in the early stages. The City will ensure its findings and any actions are communicated clearly to the community.

Tukwila BNSF Intermodal Facility Access Alternatives:

S 124th Street
This is the current route most trucks and vehicles use to access the facility. This will be considered the no-build or baseline alternative.

Gateway Drive – North Leg
This proposal would connect with the existing gate through the north leg of Gateway Drive, a new roadway between the Boeing Employee Credit Union and ITT Technical Institute building, and a new bridge over the Duwamish River.

48th Avenue S
This alternative accesses the facility at the south end via the existing 48th Avenue S roadway and a new bridge over the Green River Trail and Duwamish River.

S 112th Street
This alternative accesses the facility at the northern half via a new roadway along the existing Seattle Public Utility and Seattle City Lights utilities corridor.

Airport Way S
This alternative accesses the facility at the north end via an existing railroad access road that goes under Boeing Access Road and Sound Transit Link Light rail line.

Related Documents

Past Studies

Previous studies examined four alternative access routes in addition to a “no-action alternative” (maintaining the existing route). The following documents outline the previous studies’ results and processes:


Contact: Questions? Interested in learning more? Email us at or call 206-431-2446.