Japan National Route 257
| National Route 257 | ||||
|---|---|---|---|---|
| 国道257号 | ||||
| Route information | ||||
| Length | 241.6 km (150.1 mi) | |||
| Existed | 1 April 1963–present | |||
| Major junctions | ||||
| North end | National Route 158 near Takayama, Gifu | |||
| South end | National Route 1 in Chūō-ku, Hamamatsu | |||
| Location | ||||
| Country | Japan | |||
| Highway system | ||||
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National Route 257 is a national highway of Japan connecting Chūō-ku, Hamamatsu and Takayama, Gifu in Japan, with a total length of 241.6 km (150.1 mi).