Southwest Corridor Light Rail Project

Portland to Tualatin in 30 Minutes

The Southwest Corridor Light Rail Project will bring high-capacity transit to one of the most congested travel corridors in our region. With current hours of congestion expected to increase by 17 percent by 2035, these new travel options and connections will reduce the strain on roads and trains, getting people to jobs, schools and other destinations more quickly and reliably.

The new light rail line will create a 30-minute travel time between Downtown Portland and Tualatin, connecting regional centers including West Portland Town Center, Tigard Triangle, Downtown Tigard and Bridgeport Village. It is expected to average 37,500 daily trips by 2035, including 20 percent of commuters going southbound from Downtown Portland during afternoon rush hours.

TriMet rail system map

By 2035, we could see:

75,000 new residents
along the Southwest Corridor

17 percent increase of congestion
on I-5 between Portland and Tigard

daily trips on the new light rail line



The Route at a Glance

March 2019 preferred alternative
Conceptual rendering subject to change

Route legend

Keeping People Connected

The project builds a key branch in the regional transit system, ensuring that everyone has affordable access to jobs, education, housing and recreation destinations. The 11-mile route will provide new travel options and improvements for the region.


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Connecting the System

Transfers to bus and MAX lines, and WES Commuter Rail

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Bike and Pedestrian Friendly

New sidewalks and protected bike lanes on Barbur Boulevard and other locations where streets are rebuilt

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PCC Shuttle

A shuttle between PCC-Sylvania and nearby stations to shorten the connection between light rail and the campus

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Walk to OHSU

An accessible pedestrian connection to OHSU, the VA Hospital, Doernbecher Children’s Hospital and other Marquam Hill facilities

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Park & Rides

Up to 3,600 Park & Ride spaces


Project partners are refining design concepts based on the Locally Preferred Alternative. Project costs are approximately $2.6–2.8 billion, with state, regional, local and federal funding contributions expected.


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Testing and training


Draft conceptual design report

Final conceptual design

Environmental Review



Federal Funding

Potential regional funding vote
November 2020

Federal funding

Service begins
September 2027

Planning for Equitable Development

Project partners are collaborating on strategies to minimize gentrification and displacement, and ensure that the benefits of this major transportation investment are available to all residents.


Learn More

Community Advisory Committee

Thursday, August 6, 2020
5:30–7 p.m.
This meeting will be held virtually.

Steering Committee

Next meeting date to be determined. Details will be posted here when available.


Crews in the corridor

Though major construction is still years away, some crews are in the corridor conducting field work to help inform design. This work may include surveys, utility locates, soil sampling and noise monitoring. For questions, please email or call 503-962-2150.


Comments or questions? Please provide your contact information if you would like a reply.

Call 503-962-2150 or email for more information.



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Project Partners

TriMet Metro ODOT Washington Couty City of Durham City of Portland City of Tigard City of Tualatin