Japan National Route 404
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| 国道404号 | |
| Route information | |
| Length: | 95.7 km (59.5 mi) |
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National highways of Japan Expressways of Japan | |
National Route 404 is a national highway of Japan connecting Nagaoka, Niigata and Jōetsu, Niigata in Japan, with a total length of 95.7 km (59.47 mi).