Japan National Route 340
 | |
|---|---|
| 国道340号 | |
| 国道340号 | |
| Route information | |
| Length | 253.1 km (157.3 mi) |
| Location | |
| Country | Japan |
| Highway system | |
National Route 340 is a national highway of Japan connecting Rikuzentakata, Iwate and Hachinohe, Aomori in Japan, with a total length of 253.1 km (157.27 mi).
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