The Knowledge
Metro Board Advances Sepulveda Transit Corridor as C Line South Bay Extension Remains Under Review
The Los Angeles Metro Board meeting addressed progress on two key rail projects: the approved underground Sepulveda Transit Corridor, enhancing regional connectivity, and the debated extension of the Metro C Line into the South Bay, which remains undecided.
The future of Los Angeles transit was the focus of a recent Los Angeles County Metropolitan Transportation Authority (Metro) Board meeting, where directors considered progress on two major rail projects: the Sepulveda Transit Corridor and the long-planned extension of the Metro C Line into the South Bay.
While the meeting resulted in a decisive vote on one project, the other continues to generate debate among Metro officials, local cities, and residents.
Sepulveda Transit Corridor: Underground Heavy Rail Moves Forward
The Metro Board unanimously approved the Locally Preferred Alternative (LPA) for the Sepulveda Transit Corridor, marking a major milestone for a project that has been discussed for decades.
The approved alternative calls for a fully underground heavy rail subway connecting the San Fernando Valley to the Westside, running from the Van Nuys Metrolink Station to the Metro E Line’s Expo/Sepulveda Station. The line would pass beneath the Sepulveda Pass, UCLA, and other high-demand travel areas.
Metro officials emphasized that the underground alignment offers the fastest travel times, highest passenger capacity, and the fewest surface-level impacts when compared with earlier aerial or monorail alternatives. The project is expected to significantly reduce congestion along the 405 Freeway corridor and improve regional connectivity.
With the LPA now selected, the Sepulveda Transit Corridor advances toward final environmental clearance, engineering, and eventual construction — a process that will continue over the coming years.
Metro C Line Extension: South Bay Alignment Debate Continues
The Board also discussed the Metro C Line extension into the South Bay, a project intended to extend light rail service approximately 4.5 miles from the current Redondo Beach station to the Torrance Transit Center.
Metro has released the project’s Final Environmental Impact Report (FEIR), which incorporates years of technical analysis and public input. However, unlike the Sepulveda project, the Board did not take final action to certify the FEIR or formally adopt a locally preferred alignment at this meeting.
Hawthorne Boulevard vs. Metro Right-of-Way
At the center of the C Line discussion is the question of alignment.
Metro staff has identified a “hybrid” alignment using an existing Metro-owned rail right-of-way as the preferred option. This route would largely follow the historic Harbor Subdivision corridor, minimizing new street disruptions while blending at-grade, elevated, and below-grade segments.
Some South Bay cities, however, continue to advocate for a Hawthorne Boulevard alignment, which would place rail tracks within the median of the busy commercial corridor. Supporters argue it offers better street-level access, while Metro has cited higher costs, longer construction timelines, and greater traffic impacts as key concerns.
Metro officials indicated that additional coordination with local jurisdictions and further Board action will be needed before a final decision is made.
What This Means for LA Transit
The contrast between the two projects was clear at the meeting: the Sepulveda Transit Corridor is now firmly on a defined path forward, while the C Line extension remains in a critical decision-making phase.
Together, the projects highlight both the ambition and complexity of expanding transit in Los Angeles County — balancing regional mobility goals, neighborhood impacts, and long-term funding realities.
Further Reading & Official Project Information
Metro Sepulveda Transit Corridor Project Page
– Official Metro overview of the Sepulveda Pass project, including alternatives, maps, timelines, and environmental documents.
Metro Board Considers Locally Preferred Alternative for Sepulveda Corridor
– Metro’s summary of the Board action and rationale behind selecting the underground heavy rail option.
Metro C Line Extension to Torrance Project Page
– Background, station concepts, and status updates for the South Bay light rail extension.
Final Environmental Impact Report: C Line Extension
– Details on the Final EIR, public comments, and next steps toward Board certification.
Metro Project Updates – The Source
– Ongoing Metro blog updates covering major transit projects, board actions, and construction milestones.
LA Metro Board of Directors
– Information on Metro Board members, meeting schedules, agendas, and voting records.
STM Daily News will continue to follow both projects closely, providing updates as Metro moves toward final approvals, construction timelines, and funding decisions that will shape how Angelenos travel for decades to come.
For ongoing coverage of Metro projects, transportation policy, and infrastructure across Southern California, visit STM Daily News.
