405 in Bellevue, Washington Interstate 82 in Ellensburg, Washington Interstate 15 in Butte, Montana ; joined for 7.65 miles (12.31 km) Interstate 94 in Billings, Montana Interstate 25 in Buffalo, Wyoming Interstate 29 in Sioux Falls, South Dakota Interstate 35 in Albert Lea, Minnesota Interstate 94 in Tomah, Wisconsin ; joined for 91.76