Encyclopedia Dubuque
"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN
Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
DODGE STREET (Highway 20)
DODGE STREET (Highway 20). U.S. Route 20 is a a coast-to-coast route. It originally ended at the eastern entrance of Yellowstone Park. Because national park roads do not have signage for U.S. numbered highways, a gap exists through Yellowstone National Park and splits the route into two sections. The highway was extended west of Yellowstone in 1940. Spanning 3,365 miles (5,415 km), it is the longest road in the United States.
It and U.S. Route 30 break the general U.S. route numbering rules in Oregon, since U.S. 30 actually starts north of U.S. Route 20 and runs parallel to the north throughout the state. The two overlap and continue in the "correct" positioning near Caldwell, Idaho. This is because U.S. 20 was not a planned coast-to-coast route while U.S. 30 was.
As of 2007, Highway 20's eastern terminus was in Boston, Massachusetts, at Kenmore Square, where it met Route 2. Its western terminus was in Newport, Oregon, at an intersection with U.S. Route 101, within a mile of the Pacific Ocean.