Alameda Corridor East, San Gabriel, California

The San Gabriel Trench Project is a 2.2-mile grade separation project that will lower a 1.4-mile section of railroad track into a 35-foot deep open trench that will run through the City of San Gabriel. The project also runs along the historic San Gabriel Mission, a historic landmark dating back to 1771 and often referred to as the “Godmother of the Pueblo of Los Angeles.” Upon completion of the project, traffic congestion, possible train collisions, and train horn noise will be eliminated. We have been working on this trench since 2014 and have already installed 86% of the 7,407 piles and 62% of the 2,639 permanent tie-backs. The project is finally becoming a trench with the start of excavation, where over 400,000 sq. ft. of secant pile wall will be exposed.