Japan National Route 146
| National Route 146 | ||||
|---|---|---|---|---|
| 国道146号 | ||||
| Japan Romantic Road | ||||
Route 146 in Karuizawa | ||||
| Route information | ||||
| Length | 30.2 km (18.8 mi) | |||
| Existed | 1953–present | |||
| Major junctions | ||||
| South end | National Route 18 in Karuizawa, Nagano | |||
| North end | National Route 144 / National Route 145 in Naganohara, Gunma | |||
| Location | ||||
| Country | Japan | |||
| Highway system | ||||
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National Route 146 is a national highway of Japan connecting Naganohara, Gunma and Karuizawa, Nagano in Japan, with a total length of 30.2 km (18.77 mi).