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National Route 4 | ||||
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国道4号 | ||||
Route information | ||||
Length | 738.5 km[1] (458.9 mi) | |||
Existed | 4 December 1952–present | |||
Major junctions | ||||
South end | National Route 1 / National Route 15 / National Route 20 in Nihonbashi, Chūō-ku, Tokyo | |||
North end | National Route 7- Aomori West Bypass in Nagashima, Aomori, Aomori | |||
Location | ||||
Country | Japan | |||
Highway system | ||||
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National Route 4 (国道4号, Kokudō Yongō) is a major national highway in eastern Honshū, Japan. Measuring 738.5 kilometers long (458.9 mi), it is the longest highway in the country. When oversea routes are included, it is the second longest highway in Japan, with National Route 58 then measuring 884.4 kilometers (549.5 mi) because of its maritime sections. The highway connects Tokyo and Aomori via Utsunomiya, Kōriyama, Sendai, and Morioka.[1]
From Saitama Prefecture to Iwate Prefecture, it parallels the Tōhoku Expressway; from Morioka to Hachinohe, it parallels the Hachinohe Expressway. At its northern terminus it links with National Route 7.[2]