San Clemente Rail Protection Work Heads to Coastal Panel
Metrolink and OCTA seek approval for rock reinforcement and sand placement at two vulnerable tracks near the ocean.
Updated on Nov. 3, 2026 in Transportation
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Metrolink and the Orange County Transit Authority have proposed reinforcing rock revetments and placing more sand at two San Clemente rail locations close to the ocean. California Coastal Commission staff have recommended approval of a coastal development permit, and the board meets Thursday in San Francisco to consider it.
Why it matters
The rail line is the only railroad linking San Diego with Los Angeles and the rest of the United States, and the work is designed to protect it from erosion, flooding and wave runup. Environmental groups including the Surfrider Foundation and Save Our Beaches oppose boulder riprap, setting up a debate over how to protect the corridor.
The Coastal Commission staff report runs 115 pages and covers two work sites about 2 miles apart. Since 2021 the commission has processed 15 track stabilization projects, including 10 emergency permits, and the board's decision on this one remains pending.
The players
Metrolink
Metrolink is the commuter rail system serving Southern California and a key operator on the rail corridor at issue.
Orange County Transit Authority
The Orange County Transit Authority is the regional transit agency that co-proposed the track protection work in San Clemente.
California Coastal Commission
The California Coastal Commission is the state agency that regulates development along the California coast and will vote on the permit.
Surfrider Foundation
The Surfrider Foundation is a coastal conservation nonprofit that opposes boulder riprap at the San Clemente sites.
The details
The proposal calls for reinforcing rock revetments and placing more sand on the beach along the tracks, and sand widens the beach to shield tracks from waves in the interim. Staff expect rock placement to accelerate erosion on the narrow beach over time and to push flank erosion further north.
Timeline
2021: Vulnerability of the San Clemente rail segment increased and Coastal Commission processing of track projects began.
1928: San Clemente began placing sand on its beaches periodically.
Late 1960s: About 2 million cubic yards of sand were placed at Doheny and Capistrano beaches.
Thursday: Coastal Commission board meets in San Francisco to consider the permit.
Industry Landscape
San Clemente has placed sand on its beaches periodically since 1928, and the current proposal extends that long-running approach with rock reinforcement along the same shoreline. The rail corridor's exposure has grown as rail closures to protect public safety have become a regular occurrence, often lasting weeks or months.
Commuters and freight shippers relying on the San Diego to Los Angeles rail link face ongoing risk of closures when waves damage the tracks, which have often lasted weeks or months. The outcome of the permit vote will determine which protective measures are built to reduce those disruptions.
The takeaway
Protection of the San Clemente rail segment will depend on balancing track safety against beach erosion concerns, a tradeoff the Coastal Commission vote will test. Readers tracking rail reliability should watch how the board's conditions shape future closures.
What happens next
The California Coastal Commission board is scheduled to consider the coastal development permit on Thursday in San Francisco.
Further reading
For more on how rail infrastructure is protected along the state's shoreline, see Transportation.
Source note: This article includes information reported by San Diego Union-Tribune.
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