Japan National Route 399
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|---|---|
| 国道399号 | |
| 国道399号 | |
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| Route information | |
| Length | 179.4 km (111.5 mi) |
| Location | |
| Country | Japan |
| Highway system | |
National Route 399 is a national highway of Japan connecting Iwaki, Fukushima and Nan'yō, Yamagata in Japan, with a total length of 179.4 km (111.47 mi).
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