U.S. Route 20
U.S. Numbered Highway in the United States
(Redirected from U.S. Route 20 in Iowa)
U.S. Route 20 or U.S. Highway 20 (US 20) is an east–west United States highway that goes from Newport, Oregon to Boston, Massachusetts. The highway is 3,365 miles (5,415 km) long. It is the longest road in the United States.[1]
U.S. Route 20 | |
|---|---|
 US 20 highlighted in red | |
| Route information | |
| Length | 3,365 mi[1] (5,415 km) |
| Existed | November 11, 1926[2]–present |
| Major junctions | |
| West end |  US 101 in Newport, OR |
| |
| East end |  Route 2 in Boston, MA |
| Location | |
| Country | United States |
| States | Oregon, Idaho, Montana, Wyoming, Nebraska, Iowa, Illinois, Indiana, Ohio, Pennsylvania, New York, Massachusetts |
| Highway system | |
There is a gap in the official signage of US 20 through Yellowstone National Park. The park uses unnumbered roads.
References
change- ↑ 1.0 1.1 Weingroff, Richard (October 17, 2013). "Ask the Rambler: What Is The Longest Road in the United States?". Federal Highway Administration.
- ↑ Bureau of Public Roads & American Association of State Highway Officials (November 11, 1926). United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials (Map). 1:7,000,000. Washington, DC: United States Geological Survey. OCLC 32889555 – via Wikimedia Commons.
