1960s

1960-1970International Bridge
The heyday of road construction - nearly 1,000 miles of interstate built in this decade

1960
Michigan is the first state to complete a border-to-border toll-free interstate - I-94, running 205 miles from Detroit to New Buffalo

1960
State Highway Department becomes one of first in the nation to develop and operate a truck "weigh-in-motion" system

1962
International Bridge opens - linking the twin cities of Sault Ste. Marie in Michigan and Ontario, Canada