Portal:U.S. roads/Did you know/June 2014

A drawing entitled "the escape of Stonewall Jackson's Army down the valley pike at Strausburg [sic], Va." U.S. Library of Congress Collection

...that the Valley Pike was a toll road managed by Harry F. Byrd which followed a Native American migratory trail in the Shenandoah Valley?
... that the newest Interstate Highway designation in Michigan is Interstate 73, but it has never been built?
...that the city of San Francisco contributed a large proportion of the funds for constructing the extension of Junipero Serra Boulevard beyond the city limits?
...that County Route 91 in Onondaga County, New York is signed as County Route 57 for New York State Route 57, the route it replaced?
... that Utah's Beaver Canyon Scenic Byway is the fifth highest paved road in the state, at 9,200 feet (2,800 m), but that its unpaved portion rises even higher, at over 10,200 feet (3,100 m) in elevation?