National Route 108 is a national highway of Japan connecting Ishinomaki and Yurihonjō, Akita in Japan, with a total length of 186.9 kilometers (116.1 mi).

Quick Facts National Route 108, Route information ...

National Route 108
国道108号
Japan National Route 108 highlighted in red
Route information
Length	186.9 km[1] (116.1 mi)
Existed	1953–present
Major junctions
South end	National Route 45 in Ishinomaki, Miyagi
Major intersections	National Route 346 National Route 4 National Route 47 National Route 13 National Route 105
North end	National Route 107 in Yurihonjō, Akita
Location
Country	Japan
Highway system
National highways of Japan Expressways of Japan
← National Route 107 → National Route 112

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Route 108 was originally designated on 18 May 1953 as a route from Ishinomaki to Shinbori (now Sakata) via Furukawa (now Osaki). On 1 April 1963, the route was shortened to Furukawa and rerouted to Yokote, replacing Route 109; the original route to Sakata was incorporated into Route 47. On 1 April 1970, the northern terminus was moved to Honjo (now Yurihonjō).