National Route 51 is a national highway of Japan connecting Chūō-ku, Chiba and Mito, Ibaraki.
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.
References
- ^ "一般国道の路線別、都道府県別道路現況" [Road statistics by General National Highway route and prefecture] (PDF) (in Japanese). Ministry of Land, Infrastructure, Transport and Tourism. Retrieved 19 February 2020.
