Dujiangyan Irrigation System

Overview

The Dujiangyan Irrigation System is a 2,270-year-old hydraulic engineering marvel that still irrigates over 5,300 square kilometers of farmland today. Built in 256 BC by governor Li Bing, it is the oldest surviving no-dam irrigation system in the world and a UNESCO World Heritage Site.

Highlights

• Fish Mouth Levee: The central divider that splits the Min River into inner and outer channels.
• Anlan Suspension Bridge: A 320-meter swaying bridge spanning the river with dramatic views of the water diversion.
• Erwang Temple: A hilltop temple dedicated to Li Bing and his son, offering panoramic views of the entire system.

History

Governor Li Bing of the Qin State conceived the project in 256 BC to prevent flooding on the Chengdu Plain while providing irrigation. His ingenious design uses the natural topography and river flow, requiring no dam, and has operated continuously for over 2,200 years.

Visitor Tips

• Tip 1: Take the high-speed train from Chengdu (30 minutes) and combine with Mount Qingcheng.
• Tip 2: The annual Water Release Festival in April features a re-enactment of the ancient irrigation ceremony.
• Duration: 2–3 hours.