- Business U.S. Highway 79 Underpass - Taylor TXThe Texas Highway Department and the United States Bureau of Public Roads built an underpass in 1939 to separate the grade of U.S. Route 79 and the Missouri, Kansas & Texas Railroad (currently Business U.S. Highway 79 and Union Pacific Railroad) in Taylor, Texas. The Texas Highway Department designed the bridge and L. H. Lacy Company constructed it.