National Route 252 is a national highway of Japan connecting Kashiwazaki, Niigata and Aizuwakamatsu, Fukushima in Japan, with a total length of 204.6 km (127.13 mi).

A section of National Route 252 in the town of Kaneyama in Fukushima Prefecture is a musical road.

[2] Parts of the highway close in winter, making the Tadami line the only means of transport between several towns.

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