National Route 116 is a national highway of Japan that traverses the prefecture of Niigata in a southwest–northeast routing. It connects the city of Kashiwazaki in south-central Niigata Prefecture to
National Route 116 at Kurosaki Interchange in Nishi-ku, Niigata
Nagaoka is a city located in Niigata Prefecture, Japan. It is the second largest city in the prefecture, after the capital city of Niigata. As of 4 August 2021, the city had an estimated population of