Above banner: 1958 Construction of Iowa's I-35/I-80 Interstate, SOURCE: Iowa Public Television
Highways for National Security
Civilian Travel
Video: An excerpt from the 1956 film "Highway Hearing", produced by Dow Chemicals with assistance from the US Bureau of Public Roads and the Automotive Safety Foundation
Economy
Video: Excerpt from the 1956 film "Highway Hearing", produced by Dow Chemicals with assistance from the US Bureau of Public Roads and the Automotive Safety Foundation