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National Route 51 is a
national highway of
Japan connecting
Chūō-ku, Chiba and
Mito, Ibaraki
is the capital city of Ibaraki Prefecture, in the northern Kantō region of Japan. , the city had an estimated population of 269,330 in 123,282 households and a population density of 1239 persons per km2. The percentage of the population aged o ...
.
Route data
*Length: 124 km (77.05 mi).
History
Route 51 was originally designated
National Route 123 on 18 May 1953 as , and then was redesignated Route 51 when the route was promoted to a Class 1 highway.
References
051
Roads in Chiba Prefecture
Roads in Ibaraki Prefecture
{{Japan-road-stub