with SH-39 around the northwestern side of the city. The highways turn northeast onto Pocatello Avenue, which leads to an interchange with I-86 on the south side of American Falls Airport. The business route was originally created in 1972 as I-15W Bus, replacing a section of SH-37 within American Falls. Major intersections References External links Interstate 15 86 west 86 Transportation in Bannock County, Idaho Transportation in Cassia County, Idaho Transportation in Power County, Idaho 086