State Leaders Warn of Risks to Southern California Rail Corridor

Coastal erosion and rising sea levels threaten one of the nation’s most scenic—and strategically important—rail corridors.

1 minute read

December 14, 2023, 11:00 AM PST

By Diana Ionescu @aworkoffiction


Amtrak train on Southern California coast.

SailingAway / Adobe Stock

The coastal rail corridor between San Diego and Santa Barbara faces growing risks from coastal erosion and climate change, according to a California Senate Transportation Subcommittee. As Phil Diehl explains in The San Diego Union-Tribune, “Landslides and cliff collapses have periodically stopped the trains in Del Mar and San Clemente, and many other places also need improvements and protection from sea-level rise along the 351-mile Los Angeles-San Diego-San Luis Obispo corridor.” Yet the corridor provides a crucial transportation link for passengers, freight, and military transportation.

According to a Senate report, the cost of making safety improvements to the Los Angeles-San Diego-San Luis Obispo (LOSSAN) corridor could be more than $20 billion. With seven different right-of-way owners, the corridor is a complex system with little precedent in the United States. Researcher Genvieve Giuliano says a long-term solution would be “to create a single statewide agency that would fully integrate the multiple agencies that provide the separate passenger services — Amtrak, Coaster and Metrolink.”

Farther up the coast, the state’s Department of Transportation (Caltrans) recently completed its first erosion mitigation project for a roadway, moving a highway segment 400 feet to protect it from landslides.

Monday, December 11, 2023 in The San Diego Union-Tribune

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