Transportation Timeline

Horatio Earle became Michigan's first Highway Commissioner in 1905.Highway Department links the Upper and Lower peninsulas with state-owned ferry service at the Straits of Mackinac in 1923. The nation's first centerline painted on River Road near Trenton in 1911.International Bridge opens in 1962, linking the twin cities of Sault Ste. Marie in Michigan and Ontario Nation's largest concrete segmental bridge opens, the Zilwaukee Bridge carrying I-75 over the Saginaw River.U.S. DOT names Woodward Avenue - Detroit's main drag - as a National Byway.

View history for 1900 to 1909 View history for 1910 to 1919 View history for 1920 to 1929 View history for 1930 to 1939 View history for 1940 to 1949 View history for 1950 to 1959 View history for 1960 to 1969 View history for 1970 to 1979 View history for 1980 to 1989 View history for 1990 to 1999 View history for 2000 to 2005
1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s

This graphic is a spacer and consists of 50 pixels of white space.The nation's first centerline painted on River Road near Trenton in 1911.The first state-owned roadside park opens on M-43, east of East LansingThe five-mile-long Mackinac Bridge opens to traffic in 1957, linking Michigan's two peninsulas. 'MDOT develops nation's largest vanpool program for public employees--1977-80. MDOT establishes the first Web site hosted by a state agency in 1995.


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