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National Route 170
National Route 170
国道170号
Osaka Outer Loop Line
Route information
Length	74.0 km (46.0 mi)
Existed	1 April 1963–present
Major junctions
North end	National Route 171 in Takatsuki, Osaka
South end	National Route 26 in Izumisano, Osaka
Location
Country	Japan
Highway system
	National highways of Japan; Expressways of Japan;

National Route 170 is a national highway of Japan connecting Takatsuki, Osaka and Izumisano, Osaka in Japan, with a total length of 74 km (45.98 mi).

History

Route 170 was originally designated on 18 May 1953 from Wakayama to Matsusaka (this was Route 41 from 1945 to 1953). After it was extended to Tsu, the route was redesignated as Route 42 on 1 April 1959. Route 170 was reassigned on a route from Takatsuki to Hashimoto on 1 April 1963. On 1 April 1982 the terminus was moved from Hashimoto to Izumisano.

References

^ "一般国道の路線別、都道府県別道路現況" [Road statistics by General National Highway route and prefecture] (PDF) (in Japanese). Ministry of Land, Infrastructure, Transport and Tourism. Retrieved 19 February 2020.