 In late 1953 or early 1954 M-139 was extended westward along US 12 and then northward along Paw Paw Avenue to meet a new bypass routing of US 31 north of Benton Harbor.US 31 was rerouted to follow what is now the I-196 freeway in 1963.At that time, US 31 was then routed along I-94 and M-139 to Scottdale.