Railroad tracks under construction in the Alameda Corridor run below-ground April 3, 2002 in Compton, Calif. The $2.4-billion partially below-ground railroad system features a concrete trench 33 feet deep, 50 feet wide and 10 miles long. Photo by David McNew/Getty Images.
Photo by: Getty Images

Railroad Upgrade

by / December 20, 2011

The Alameda Corridor-East (ACE) railroad project is upgrading a 70-mile trade corridor cutting through Southern California’s San Gabriel Valley. Here, a completed section of the original Alameda corridor project runs beneath the city of Compton.

In October, the California Transportation Commission allocated more than $336 million toward a 1.4-mile railroad trench to divert freight trains from four congested and hazardous crossings. Construction of the trench is intended to cut emissions, create jobs, reduce noise and improve safety. The ACE Trade Corridor is vital for carrying goods to and from San Pedro Bay ports, which handle 44 percent of the country’s containerized imports.

Photo courtesy of David McNew/