Portal:U.S. roads/Did you know/March 2017

... that Skyline Drive in Shenandoah National Park in Virginia was once proposed to be named the Hoover Highway after President Herbert Hoover?
... that numbered highways in the Northern Mariana Islands beginning with 1 are on Rota, beginning with 2 on Tinian, and beginning with 3 on Saipan?
... that M-179 is a Pure Michigan Byway named for Chief Noonday?
... that the section of Delaware Route 1 between Dover and Smyrna once had road signs in metric units in anticipation of the United States converting to the metric system?
... that North Dakota Highway 1804 and North Dakota Highway 1806 follow the Lewis and Clark Trail along the Missouri River and were numbered to reflect the years of the Lewis and Clark Expedition?