Portal:Michigan highways/Did you know/May 2014
Appearance
![Marquette–Negaunee Road in 1917 with the first highway centerline in the country](http://upload.wikimedia.org/wikipedia/commons/thumb/9/9c/M-15_centerline_1917.jpg/100px-M-15_centerline_1917.jpg)
- ... 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?