Portal:Michigan highways/Did you know/May 2014

Marquette–Negaunee Road in 1917 with the first highway centerline in the country

... that the first highway centerline (pictured) was painted on the Marquette–Negaunee Road by K.I. Sawyer in 1917?
... that M-1 (Woodward Avenue) is an All-American Road?
... that the longest state highway outside of the Interstate or US Highway systems in Michigan is M-28?
... that M-6 is officially named for Paul B. Henry, a Congressman from the Grand Rapids area who died in office?
... that both M-30 and M-129, on the Lower and Upper peninsulas respectively, follow the Michigan Meridian, an important landmark for how Michigan was surveyed?