National Route 234 is a Japanese national highway connecting the cities of Iwamizama and Tomakomai in Hokkaido, Japan. It has a total route length of 69.6 km (43.2 mi).
|Length||69.6 km (43.2 mi)|
- ^ "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 18 February 2020.