Japan National Route 140

National Route 140 shield

National Route 140
国道140号
Route information
Length 146.6 km (91.1 mi)
Highway system
National highways of Japan
Expressways of Japan

National Route 140 is a national highway of Japan connecting Kumagaya, Saitama and Masuho, Yamanashi in Japan, with a total length of 146.6 km (91.09 mi).

The route includes the Karisaka Tunnel, first opened in 1998 and at 6,225m the fifth-longest road tunnel in Japan.


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