Interstate 94 (abbreviate I-94) is the northernmost east-west interstate highway, connecting the Great Lakes and Intermountain regions of the United States. Its western terminus is in Billings, Montana at a junction with Interstate 90; its eastern terminus is the U.S. side of the Blue Water Bridge in Port Huron, Michigan, at the Sarnia, Ontario, Canada border, where together with Interstate 69 it meets Highway 402. I-94 is the longest interstate highway that does not end in a '0' or '5'.