National Route 399 is a national highway of Japan connecting Iwaki, Fukushima and Nan'yō, Yamagata in Japan, with a total length of 179.4 km (111.5 mi).
See also
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 12 February 2020.
