is a national highway connecting

Ashikaga, Tochigi is a Cities of Japan, city located in Tochigi Prefecture, Japan. , the city had an estimated population of 143,653, in 62,123 households and a population density of 810 persons per km². The total area of the city is . Geography Ashikaga is loc ...

and

Iruma, Saitama 260px, Tea fields in Iruma 260px, Kasumi River in Iruma is a city located in Saitama Prefecture, Japan. , the city had an estimated population of 147,166 in 66,516 households and a population density of 3300 persons per km². The total area of ...

in Japan, with a total length of 60.4 km (37.53 mi).

References

National highways in Japan Roads in Gunma Prefecture Roads in Saitama Prefecture Roads in Tochigi Prefecture {{Japan-road-stub