National Route 31 (South Korea)
31  | |
|---|---|
| 국도 제31호선 | |
| Route information | |
| Length | 750 km (470 mi) | 
| Existed | 31 August 1971–present | 
| Major junctions | |
| South end | Gijang County, Busan Donghae Expressway at the Gijang IC  | 
| North end | Singosan, Anbyeon, South Hamgyeong National Route 5  | 
| Location | |
| Country | South Korea | 
| Highway system | |
National Route 31 is a national highway in South Korea connects Gijang, Busan to Singosan, Anbyeon. Due to the separation of Korean peninsula, it de facto ends in Yanggu It established on 31 August 1971.