Repairs included installing more piled support columns to stabilize tracks, drainage improvements, revegetation and hydroseeding of the slope, a statement from the Los Angeles-San Diego-San Luis Obispo rail corridor's San Diego-area administration read.
The LOSSAN corridor is an economic lifeline for the San Diego region. As the second-busiest intercity rail corridor in the United States, it serves 7.6 million passengers and moves $1 billion in goods and services each year.
The bluffs typically experience erosion of up to six inches per year on average over the last 25 years, largely due to storm water, wave action irrigation runoff and sea level rise. Construction for phase 5 is scheduled to begin in 2023 and will address additional seismic and general track and bluff stabilization needs, install additional support columns and replace aging drainage structures.
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