Japan National Route 257

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National Route 257 shield

National Route 257
国道257号
Route information
Length241.6 km (150.1 mi)
Highway system
National highways of Japan
Expressways of Japan

National Route 257 is a national highway of Japan connecting Nishi-ku, Hamamatsu and Takayama, Gifu in Japan, with a total length of 241.6 km (150.12 mi).