High Quality Content by WIKIPEDIA articles! In the U.S. state of Nebraska, U.S. Highway 34 is a highway which goes between the Colorado border west of Haigler to the Iowa border east of Plattsmouth. Between Culbertson and Hastings, U.S. 34 overlaps U.S. Highway 6. From Grand Island to Lincoln, U.S. 34 has been replaced by Interstate 80 as a high-speed corridor and mostly serves local traffic. On this portion of the highway, U.S. 34 is continuously north of Interstate 80. Within Lincoln, U.S. 34 runs concurrent with all of Interstate 180, and much of it follows O Street.