The highway is entirely located in Kaohsiung City.

The route length is 112.26 kilometres (69.76 mi) .

[1] The highway begins at the mountainous aboriginal district of Namasia.

The highway heads southbound as it leaves for the plains, passing through the rural and suburban districts of Jiaxian, Shanlin, Cishan, Dashu, before entering the industrial districts of Daliao and Linyuan.

The road ends at Linyuan District at the intersection with Highway 17.