What is the longest U.S. highway?

The national highway system was first created to a common standard in the 1950s. U.S. Route 20 is the ??longest road, beginning in Boston at Route 2 and runs through to an intersection with US 101 in Newport, Ore. A dozen states make up U.S. Route 20, covering 3,365 miles of road.



People Also Ask

While the route retained the U.S. 395 designation between Bishop and Brown, the former segment of U.S. 6 beyond Brown became State Route 14. After the 1963 change in California, U.S. 6 became the second longest highway in the country (3,227 miles). The longest was and remains U.S. 20 (3,345 miles).

MORE DETAILS

Interstate 80 (I-80) is an east-west transcontinental freeway in the United States. The highway was designated in 1956 as one of the original routes of the Interstate Highway System. Its final segment was opened to traffic in 1986. It is the second-longest Interstate Highway in the United States, following I-90.

MORE DETAILS

Named US Route 6, the road stretched from Cape Cod, Massachusetts to Long Beach, California. It became one of America's first transcontinental highways. Today the road remains one of the longest highways in the nation.

MORE DETAILS

Major William L. Anderson, Jr., of the U.S. Army conceived the idea of designating U.S. 6 the Grand Army of the Republic Highway to honor the Union forces during the Civil War. Based on his recommendation, the Sons of Union Veterans of the Civil War began promoting the idea in April 1934.

MORE DETAILS

Route 66 became a popular route because of the active promotion of the U.S 66 Highway Association, which advertised it as “the shortest, best and most scenic route from Chicago through St. Louis to Los Angeles.”

MORE DETAILS

Once known as Pequot Path, King's Highway, and the Boston Post Road, U.S. Route 1 has paved the way for interstate commerce in the United States. What is now U.S. Route 1 was once colonial America's first highway.

MORE DETAILS