Road Trip to Sioux City

2026 marks the 100th anniversary of the US Numbered Highway System. Sioux City’s first federal highways were US 20 and US 75. The former extended east-west from Boston, Massachusetts to Newport, Oregon, while the latter ran north-south from Noyes, Minnesota to Galveston, Texas. Matt Anderson, Sioux City Public Museum’s Curator of History, will use historic maps and photographs to show how these major thoroughfares progressed from simple dirt wagon roads to paved state highways to important routes in the first national highway system. There will also be a discussion of how US 20 and US 75 have changed over the years and how these changes have affected Sioux City.