U.S. Route 20

U.S. Highway 20 ( in the Anglo- Saxon usage also: U.S. Route 20, U.S. 20 short ) is a West - East American main road. The "0" in the street name indicates here is that there is a coast -to- coast road. With over 5415 kilometers, it is the longest road in the United States of America.

History

Before the U.S. Highway System was created, the section between New England and New York as New England Interstate Route 5 was (NE -5) respectively.

1924 Oregon Montana Nebraska Iowa Illinois Ohio Pennsylvania Albany (Oregon) Boston List of United States Numbered Highways U.S. Route 1 U.S. Route 3 U.S. Route 4 U.S. Route 5 U.S. Route 6 U.S. Route 7 U.S. Route 8 U.S. Route 10 U.S. Route 11 U.S. Route 12 U.S. Route 14 U.S. Route 18 U.S. Route 21 U.S. Route 24 U.S. Route 34 U.S. Route 36 U.S. Route 40 U.S. Route 45 U.S. Route 46 U.S. Route 49 U.S. Route 53 U.S. Route 54 U.S. Route 57 U.S. Route 60 U.S. Route 61 U.S. Route 62 U.S. Route 67 U.S. Route 73 U.S. Route 80 U.S. Route 89 U.S. Route 89A U.S. Route 90 U.S. Route 91 U.S. Route 95 U.S. Route 97 U.S. Route 101 U.S. Route 150 U.S. Route 163 U.S. Route 218 U.S. Route 425

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