LOS ANGELES, Calif. – Skanska its joint-venture partner Stacy and Witbeck will begin construction of foundations for the new Sixth Street Viaduct in Los Angeles, California, this this month. This is a significant milestone for the project which, until now, has primarily consisted of the demolition of the previous structure. Foundation work will commence immediately and conclude late in 2017. Numerous foundations will be drilled, utilizing thousands of cubic yards of concrete and millions of pounds of reinforcing steel. This work will be followed by construction of the distinctive “Y” columns and the viaduct superstructure. HNTB is the designer of … Read more