Tuoshan Weir

Tuoshan Weir is a stone structure with iron reinforcements spanning the Yinjiang River, featuring a wide crest for water management. The construction channels water across a large agricultural region while blocking saltwater from entering freshwater sources.

The structure was established during the Tang Dynasty to address flooding and saltwater intrusion into the region. This construction marked a turning point in how communities managed water across the area.

A temple near the structure displays statues honoring the builders and remains a gathering place for local ceremonies and community events.

The site is accessible from nearby paths and offers viewpoints along the structure for observation. Visit during dry weather to get a clear view of the entire construction and its layout.

The center of the structure is significantly thicker and gradually narrows toward the edges, a design that enables it to resist water pressure over centuries. This engineering approach demonstrates how builders adapted principles to extend the lifespan of the entire system.

Location: Haishu District

GPS coordinates: 29.76958,121.34722

Latest update: December 12, 2025 17:43