National Route 251
国道251号
Route information
Length	148.2 km[1] (92.1 mi)
Existed	10 July 1956–present
Location
Country	Japan
Highway system
National highways of Japan Expressways of Japan
←National Route 250 →National Route 252

National Route 251 is anational highway ofJapan connectingNagasaki, Nagasaki andIsahaya, Nagasaki in Japan, with a total length of 148.2 km (92.09 mi).

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