1967 : I-94 Completed

February 1, 2018 all-day

The last link of I-94 was completed, making Michigan the first state to have a border-to-border interstate highway.

The seven-mile section of I-94 that opened through St. Clair Shores and Roseville completed the 275-mile highway that runs from New Buffalo on the west to Port Huron on the east.

Source : Historical Society of Michigan, Michigan History Calendar