The Jungang Expressway Branch (Korean: 중앙고속도로지선; RR: Jungang Gosok Doro Jiseon) is an expressway in South Korea.

It connects Gimhae to Yangsan of South Gyeongsang Province.

The expressway's route number is 551.

and doesn't have any Service Area.

This article relating to roads and highways in South Korea is a stub.