National Route 138 is a national highway of Japan connecting Fujiyoshida, Yamanashi and Odawara, Kanagawa in Japan, with a total length of 61.4 km (38.15 mi).

Quick Facts National Route 138, Route information ...

National Route 138
国道138号
Route information
Length	61.4 km[1] (38.2 mi)
Existed	1953–present
Major junctions
West end	National Route 137 / National Route 139 in Fujiyoshida, Yamanashi
East end	National Route 1 / National Route 255 in Odawara, Kanagawa
Location
Country	Japan
Highway system
National highways of Japan Expressways of Japan
← National Route 137 → National Route 139

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The highway connects Odawara in the western side of Kanagawa Prefecture to Fujiyoshida, a city on the northern side of Mount Fuji in Yamanashi Prefecture. From its eastern terminus at National Routes 1 and 255 in Odawara, the road travels west to the eastern limit of Fuji-Hakone-Izu National Park. The highway travels through the northern portion of the park, exiting it at its northwestern corner. Next the highway has a junction with the Tōmei Expressway in Gotemba. It then travels across the city and then enters the neighboring town, Oyama. In Oyama, the road has a junction with Higashifuji-goko Road. It then hugs the southern shore of Lake Yamanaka, the largest of the Fuji Five Lakes before crossing into Fujiyoshida where it meets its western terminus at an intersection with National Route 137.^[2]