List of US+Canada rail transit currently under construction

[Tcmetro]

Some updates for the list:

Openings:
3/28/2026 - Sound Transit's Line 2 Crosslake Connection opened
3/31/2026 - NICTD's South Shore Line Monon Corridor (suburban Chicago) opened

Projects under construction, not on the list:
Kansas City's Riverfront Streetcar extension - 0.7 mi. - opening in May 2026.
Extends the streetcar to the Riverfront, next to the soccer field.
https://kcstreetcar.org/about-streetcar/streetcar-riverfront-extension/
https://www.kcur.org/news/2026-03-17/kan...-before-the-world-cup-heres-what-we-know

NYC MTA's Metro-North Penn Station Access - completion in 2027.
Adds 4 stations and extends New Haven Line trains along 19 miles of existing intercity Amtrak lines into Penn Station.
https://www.mta.info/project/penn-station-access

Salt Lake City UTA's S-Line Streetcar extension - 0.2 mi. - opening in 2027.
Extends the streetcar by about 1 block to terminate closer to the shopping center and adds more double track.
https://www.rideuta.com/Current-Projects/S-Line-Extension-Project

Chicago CTA's Red Line extension - 5.5 mi. - opening in 2031.
Extends the Red Line south with 4 stations and a new yard, closer to the city's southern border.
https://www.transitchicago.com/rle/

Los Angeles Metro's East San Fernando Valley light rail - 6.7 mi. - opening in 2031.
New isolated light rail line that will connect to the G Line busway and the future Sepulveda subway.
https://www.metro.net/projects/east-sfv/

Calgary Transit's Green Line - 16 km/10 mi - opening in 2031.
Adds 10 stations on a new low-floor light-rail line.
https://www.calgary.ca/green-line/construction.html

NYC MTA's Second Ave Subway phase 2 - 2.0 mi - opening in 2032?
Adds 3 stations and a connection to the Lexington Ave subway and the Metro-North railroad.
https://www.mta.info/project/second-avenue-subway-phase-2

Corrections:
Miami's Tri-Rail downtown extension opened in 2024, but is listed as 2025.

Upcoming 2026 openings:
Los Angeles Metro's D Line Phase 1 extension - 5/8/2026
Kansas City's Riverfront Streetcar extension - May 2026
Montreal's REM Anse‑à‑l’Orme (A3) branch - Spring 2026
St. Louis MetroLink's Mid-America Airport extension - Summer 2026
Ottawa's O-train Line 1 East extension to Orleans - July 2026
Santa Ana's OC Streetcar - August 2026