Shacheng Bay Cross Sea Highway Channel connects Fujian and Zhejiang coasts. It starts from the Nanshanjian Tunnel in Shuanghua Village, Jiayang Township, Fuding City, connects with Ruian to Cangnan section of Wenzhou of Zhejiang Coastal Expressway, and finally connects with Changmen, Yangzhong Village, Dianxia Town, Fuding City, and connects with Shenyang-Haikou Expressway at Kengmenli Hub.
