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Metro Pomona A Line Extension is Open

With nine new miles of light rail, four new stations - Glendora, San Dimas, La Verne, and Pomona - the world's longest light rail line now extends 57.6 miles from Pomona through Pasadena and downtown L.A. to Long Beach.
5:05 PM PDT on September 19, 2025
Metro Pomona A Line Extension is Open
Metro A Line Pomona Station on opening day. Photos by Joe Linton/Streetsblog

Today Metro opened four new A Line stations on the agency’s growing light rail system: Glendora, San Dimas, La Verne, and Pomona. The A Line now runs 57.6 miles from Pomona to Long Beach. Since Metro combined the former Blue and Gold Lines in 2023, the A Line was already the world’s longest light rail line; today’s addition of nine new miles brings the length to 57.6 miles.

Map showing today’s new Glendora to Pomona segment, and the planned future extension from Pomona to Montclair

Getting the A Line this far has not been easy. When construction costs came in higher than anticipated, the current project was split into two phases, delaying planned stations in Claremont and Montclair. That future Montclair Station was dealt a further blow this month when San Bernardino County Transportation Authority (SBCTA) leadership decided against their part of the project.

For Glendora to Pomona, ground was broken in 2019. Construction, managed by the Foothill Gold Line Construction Authority, weathered the pandemic and wrapped up at the start of this year.

Pomona Mayor Tim Sandoval speaking at this morning’s opening ceremony
Metro CEO Stephanie Wiggins at this morning’s A Line opening festivities
Community leaders cut the ceremonial ribbon on the Metro A Line extension from Glendora to Pomona

Today Metro and San Gabriel Valley leaders gathered in Pomona to celebrate the new extension. They praised the completed project, and reiterated their commitment to building the next phase to Montclair. Speakers touted the rail line’s benefits in providing sustainable transportation, creating jobs, and connecting communities – including serving more than a dozen colleges and universities.

Maiden public voyage of the A Line Westbound from Pomona
Newly opened Metro A Line San Dimas Station
Metro A Line Glendora Station

Streetsblog’s San Gabriel Valley coverage is supported by Foothill Transit, offering car-free travel throughout the San Gabriel Valley with connections to the A Line Stations across the Foothills and Commuter Express lines traveling into the heart of downtown L.A. To plan your trip, visit Foothill Transit. “Foothill Transit. Going Good Places.” Sign-up for our SGV Connect Newsletter, coming to your inbox on Fridays!

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