Japan National Route 315
 | |
|---|---|
| 国道315号 | |
| 国道315号 | |
| Route information | |
| Length | 88.9 km (55.2 mi) |
| Location | |
| Country | Japan |
| Highway system | |
National Route 315 is a national highway of Japan connecting Shūnan, Yamaguchi and Hagi, Yamaguchi in Japan, with a total length of 88.9 km (55.24 mi).
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