Japan National Route 303

National Route 303 is a national highway of Japan connecting Gifu, Gifu and Wakasa, Fukui in Japan. The highway has a total length of 122.8 km.

History
An incident occurred on 14 November 2018, when the Japan Ground Self-Defense Force was conducting a military exercise in Takashima, Shiga near Route 303. During the exercise, the JGSDF unintentionally hit the road with a live 81 mm mortar round. The resultant explosion caused fragments of pavement go flying, some of which struck a parked car with an elderly man inside. The man was not injured, but the car was damaged, with dents and some shattered windows.