Japan National Route 140

National Route 140 is a national highway of Japan connecting Kumagaya, Saitama and Fujikawa, Yamanashi in Japan, with a total length of 146.6 km (91.1 mi).

National Route 140
国道140号
Route 140 in Kumagaya
Route information
Length	150.4 km[1] (93.5 mi)
Existed	1953–present
Major junctions
South end	National Route 52 in Fujikawa, Yamanashi
North end	National Route 17 / National Route 407 in Kumagaya
Location
Country	Japan
Highway system
National highways of Japan Expressways of Japan
← National Route 139 → National Route 141

The route includes the Karisaka Tunnel, first opened in 1998 and at 6.225 km (3.868 mi) is the fifth-longest road tunnel in Japan.Because it is the main road connecting Saitama and Yamanashi, both prefectures are developing the Nishikanto Road.^[2]

See also

• Japan portal
• Roads portal