Kato Road Grade Separation, Santa Clara Valley Transportation Authority (VTA), Fremont/Milpitas, CA
In 2002, VTA acquired fifteen miles of property (right-of-way) from the Union Pacific Railroad (UPRR), spanning from Grimmer Boulevard in Fremont, to Hwy. 101 in San Jose. This property allows Bay Area Rapid Transit (BART) Silicon Valley to be built alongside the existing Union Pacific railroad tracks. This grade separation project consisted of top-down construction of a two-span, structural-steel UPRR bridge, a cast-in-place two-span UPRR access bridge, and a two-span cast-in-place BART bridge. Construction included DSM piling, mass excavation, installation and removal of embankment for a shoofly (UPRR), lime treatment, concrete and AC paving, architectural treatment, new drainage systems, as well as the construction of a new pump station adjacent to the new depressed road and box culvert adjacent to the Castelleja subdivision.