WALSH CONSTRUCTION
THE PROJECT In 2012 , ACE selected Chicagobased Walsh Construction to build the San Gabriel Trench ( SGT ) Project , which is part of the ACE program . The $ 172.6 million , 2.2-mile-long grade separation project involves constructing a concrete-walled railroad trench 30 feet deep and 6 feet wide through the City of San Gabriel , into which a 1.4-mile section of Union Pacific Railroad ( UPRR ) track will be lowered . It also involves grade separations at four crossings , over which precast girder roadway bridges will be built .
According to ACE , the project will reduce locomotive horn and crossing bell noise , and eliminate an estimated 1,744 hours of vehicle delay each day at the four crossings . The busiest crossing is San Gabriel Boulevard , which carries approximately 35,310 vehicles per day and operates at 118 percent of capacity in peak hours . Add in street-bridge crossings at Ramona Street , Mission Road Bridge and Del Mar Avenue , and capacity jumps to an estimated 90,000
SGT Del Mar Invert and Struts
vehicles each day .
“ When the job is completed , the train will be down in the trench and the street crossings will go over the train unimpeded without any safety issues crossing the track ,” Walsh Project Manager Jeff Jones said .
56 March 2016