Iowa Highway 930
Iowa Highway 930 is a unsigned highway in Boone County, Iowa. During the 1960s, U.S. Highway 30 in central Iowa was reconstructed to the south of where it ran, bypassing the cities of Marshalltown, Ames, and Boone. Upon completion, the entire old route of US 30 became Iowa 930. Gradually, most of Iowa 930 was turned back to the respective counties and cities except for the portion in Boone County.