Zhaozhuang Bridge is a 410 metre long arch bridge currently under construction in Xingyi, in the Guizhou province of China. When it is completed it will be the highest arch bridge in the world. It will rank among the 20 highest bridges of any type and be among the 20 longest arch bridges. The bridge crosses the Maling River Canyon. The Maling River is a tributary of the Nanpan River.