It originates at Nihonbashi in Chūō, Tokyo, and terminates in the city of Niigata (the capital of Niigata Prefecture), where it meets National Routes 7, 8, 49, 113 and 116).
It begins at Nihonbashi in Chūō, Tokyo, and ends in Niigata City (the capital of Niigata Prefecture), where it intersects with National Routes 7, 8, 49, 113, and 116.