Japan National Route 51

National Route 51 is a national highway of Japan connecting Chūō-ku, Chiba and Mito, Ibaraki.

National Route 51
国道51号
Route information
Length	124 km (77 mi)
Existed	1 April 1963–present
Major junctions
North end	National Route 50 in Mito, Ibaraki
South end	National Route 14 / National Route 126 in Chūō-ku, Chiba
Location
Country	Japan
Highway system
National highways of Japan Expressways of Japan
← National Route 50 → National Route 52

Route data

• Length: 124 km (77.05 mi).

History

Route 51 was originally designated on 18 May 1953 as National Route 123, and this was redesignated Route 51 when the route was promoted to a Class 1 highway.