Portal:U.S. roads/Did you know/December 2015

... that the first highway centerline (pictured) was painted on the Marquette–Negaunee Road by K.I. Sawyer in 1917?
...that California's four-lane Bayshore Highway, now a freeway, was built to high standards in the 1920s and '30s, but was called "Bloody Bayshore" because of the number of crashes?
... that Ronald Reagan Cross County Highway in Hamilton County, Ohio, was the first highway to be named after U.S. President Ronald Reagan?
... that to prevent flooding on Colorado State Highway 74, 34-foot high walls were constructed along the road?
... that before its removal, Pennsylvania Route 963 was the easternmost state traffic route in Pennsylvania?