country wide direction 31 is a country wide motorway in South Korea connects Gijang County to Yanggu County. It established on 30 August 1971.
|Length:||627 km (390 mi)|
|South end:||Gijang County, Busan
Korea Expressway No.65.svg Donghae Expressway at the Gijang IC
|North end:||Yanggu County, Gangwon Province|
|Highway systems:||Highway systems of South Korea
Expressways National Local