The Alameda Corridor is a 20-mile-long freight rail line linking the Port of Los Angeles and the Port of Long Beach to the transcontinental rail yards near downtown Los Angeles.
The Corridor consolidates rail traffic from four existing branch lines, allowing trains to run between the ports and downtown in less than 45 minutes. Prior to construction, the trip could take more than two hours. The Corridor's signature feature, a $783-million mid-corridor railway trench, is a below-grade open trainway that is 30 feet deep and lies between two adjacent major roadways. A training and development program was established to provide more than 1,000 Corridor residents with jobs. More than 30 percent of the actual construction was performed by local residents.
Public safety has increased due to the shift in rail traffic to the Corridor, which eliminates at-grade crossings and considerably reduces train movements at nearly 200 grade crossings on the branch lines. As the result of a 90 percent delay reduction at traffic crossings, train emissions will be reduced by 28 percent and emissions from idling cars and trucks will be reduced by 54 percent, providing multiple environmental benefits. In addition, by the year 2020, train movements along the Corridor are projected to nearly triple, increasing from 35 movements per day to over 100.
The project was selected by ASCE as a finalist for the 2003 Outstanding Civil Engineering Achievement (OCEA) Award.