SBCTA votes down Metro A Line plan, halting light-rail extension into Montclair
San Bernardino, California (High Desert News Online) – The San Bernardino County Transportation Authority voted to halt the Metro A Line light-rail extension from Pomona into Montclair, citing operational concerns and potential ridership impacts on the Metrolink San Bernardino Line and local funding shortfalls.
- SBCTA formally declined to support the Pomona–Montclair leg, blocking the planned extension into San Bernardino County.
- About 3.2 miles beyond Pomona would have brought the A Line to Montclair and linked with the Montclair Transcenter and Metrolink.
- Local funding was required: San Bernardino County contributions were essential for the final Claremont-to-Montclair segment.
- Regional planners recommend a mix of bus rapid transit, commuter rail improvements and targeted projects rather than a single cross-county light-rail extension.
Background: the Foothill Extension and the Metro A Line extension
The Foothill Extension (Phase 2B) was planned to run east from Azusa through Glendora, San Dimas, La Verne, Pomona, Claremont and into Montclair, adding roughly 3.2 miles beyond Pomona into San Bernardino County. The extension would have connected the A Line directly to the Montclair Transcenter and the Metrolink San Bernardino Line.
Los Angeles County’s Measure M provided funding to Claremont, but the final leg into Montclair required San Bernardino County approval and local funding commitments — a gap that made the Pomona-to-Montclair segment politically and financially fragile.
For additional background, see the Foothill Extension (Phase 2B) overview.
SBCTA’s vote and rationale
SBCTA officials argued that the extension could cannibalize ridership from the Metrolink San Bernardino Line, shifting existing commuters to the A Line and reducing revenue while complicating schedules and operations on a key regional commuter rail corridor.
SBCTA framed its decision as protecting Metrolink service reliability and preserving capacity for longer-distance commuters.
The vote represents a formal refusal to allocate local support or funds for the Claremont-to-Montclair segment. Without SBCTA’s commitment, the A Line cannot cross into San Bernardino County unless a new funding plan or inter-agency agreement emerges. See City of Montclair statements and SBCTA communications for the county’s summary and local response.
Local reaction: Montclair and advocates push back
Montclair city leaders and local advocates criticized the SBCTA decision, arguing the extension would improve regional connectivity, add choices for commuters and spur growth around the Montclair Transcenter. The city has pursued federal grants and other funding options and urged SBCTA to reconsider.
For Montclair’s position and ongoing efforts, see the City of Montclair — Gold Line to Montclair information and city response.
Regional planning perspective and alternatives
Regional planning agencies, including the Southern California Association of Governments, have recommended a portfolio approach: commuter rail improvements, express bus service, bus rapid transit and targeted rail work. That perspective reflects tradeoffs between modes, routes and funding across county lines.
SCAG’s corridor studies highlight the I-10 and Metrolink corridors as vital for cross-county travel and encourage coordinated solutions rather than singular investments. See SCAG Passenger Rail Program and corridor planning.
Operational concerns: shared right-of-way and ridership effects
A technical driver of the vote was the proposal for the A Line to share right-of-way with the Metrolink San Bernardino Line on the Pomona-to-Montclair stretch. SBCTA warned that mixed operations could interfere with Metrolink schedules, reduce express-run capacity, or force operational changes that degrade long-distance commuter service.
Preserving reliable Metrolink service — especially for peak-direction commuters headed to Los Angeles — was cited as a priority that justified rejecting the light-rail extension under the current proposal.
What the vote means now
With SBCTA’s vote against the Montclair extension, the Metro A Line is likely to end at Pomona or Claremont unless new funds and inter-agency agreements are secured. Montclair leaders may continue seeking federal grants or alternative plans, but the absence of county-level backing is a significant setback.
The decision underscores how Measure M funds did not cover cross-county legs, leaving the final segment dependent on negotiations between separate transit agencies and county authorities — negotiations that failed in this instance.
Implications for The High Desert, California
Although the High Desert would not be directly served by the Montclair extension, the vote has ripple effects: county funds may instead prioritize preserving Metrolink capacity, highway improvements or express bus service that better serve long commutes from the High Desert.
Local political debates may shift toward prioritizing commuter-focused investments and fiscal restraint, and residents should watch for follow-up actions that might improve Metrolink reliability, park-and-ride access or express bus corridors on I-15 and I-10.
Sources and further reading
- City of Montclair — Gold Line to Montclair information and city response
- Montclair’s response to Metro Gold Line Foothill Extension Construction Authority
- Foothill Extension (Phase 2B) overview
- SCAG Passenger Rail Program
Substantive reporting continues through the cited sources above.
