The highway connects the Port of Taichung with the northern suburbs of Qingshui, Shalu, Daya, Shengang, and Fengyuan.

[1] The highway begins at the Port of Taichung and continues towards downtown Qingshui as Sanmin Rd.

It is then known as Zhongqing Road (中清路) as it leaves Qingshui.

The route then turns in a northeast direction at the intersection with PH 1B in Daya, the latter continues to central Taichung while the former goes to Shengang and Fengyuan as Minsheng Road (民生路) and Zhongzheng Road (中正路).

PH 10B (10乙) is the old segment of Highway 10 between Qingshui and Shalu.