Completed in 1927, the Lincoln Highway,
the prototype transcontinental route designed for automobile
traffic, stimulated highway improvement. It later became federally
marked U.S. Highway 30. In the 1950-1960s Interstate 80 was built to
carry east-west traffic through Nebraska. Though I-80 parallels the
Lincoln Highway route in many counties, the older route continues as
a part of the federal highway network.