Construction got a slow start in Omaha, Nebraska, eastern terminus of the Union Pacific Railroad. By April 1864 the jubilance of groundbreaking had long ago faded into the ether. Chief engineer ...

July: Engineer and enthusiast Theodore Judah solves the great riddle of the Pacific Railroad when he reaches ... a ceremonial train excursion to the eastern side of the Sierra Nevada.

The Union Pacific Railroad will be replacing the railroad crossing at Ash Street in Idaho Falls. Beginning April 3, Ash Street from Eastern Avenue to Northgate Mile (Yellowstone Highway ...