Japan National Route 40

National Route 40 is a national highway connecting Asahikawa and Wakkanai in Hokkaidō, Japan.

Route data

Length: 243.0 km
Origin: Asahikawa
Terminus: Wakkanai

History

1952-12-04 - First Class National Highway 40
1965-04-01 - General National Highway 40

Overlapping sections

From Shibetsu to Nayoro : Route 239
From Bifuka to Otoineppu: Route 275
From Teshio to the terminus: Route 232