Japan National Route 316
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| 国道316号 | |
| 国道316号 | |
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| Route information | |
| Length | 40.2 km (25.0 mi) |
| Location | |
| Country | Japan |
| Highway system | |
National Route 316 is a national highway of Japan connecting Nagato, Yamaguchi and San'yō-Onoda, Yamaguchi in Japan, with a total length of 40.2 km (24.98 mi).
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