China's Middle Route Water Diversion Project Reaches 80 Billion Cubic Meters

The Middle Route of China's South-to-North Water Diversion Project has officially diverted over 80 billion cubic meters of water to northern China as of August 7, 2026. Spanning 1,432 kilometers across four major river basins, the 12-year-old mega-project benefits nearly 118 million residents in Beijing, Tianjin, Hebei, and Henan. In addition to supplying up to 80% of core water consumption in Beijing and nearly all main urban supply in Tianjin, the channel has driven groundwater recovery and ecological restoration across the dry North China Plain, backed by digital twin and artificial intelligence dispatch systems.

Reaching the 80 billion cubic meter milestone demonstrates how large-scale water infrastructure underpins industrial growth, municipal water security, and ecological rehabilitation in water-scarce northern metropolises. The ongoing digital upgrade provides a testing ground for managing complex physical networks with artificial intelligence.

The Middle Route of China's South-to-North Water Diversion Project has diverted more than 80 billion cubic meters of water to northern provinces as of August 7, 2026, according to state media reporting citing the China South-to-North Water Diversion Group. Operating for nearly 12 years, the 1,432-kilometer main canal spans the Yangtze, Huai, Yellow, and Hai river basins, delivering water to 27 large and medium-sized cities across Henan, Hebei, Tianjin, and Beijing. The strategic corridor has altered urban water distribution in northern China, benefiting nearly 118 million residents. In Beijing's central urban district, diverted southern water now accounts for nearly 80% of total consumption, serving more than 16 million people. In Tianjin's main urban area, almost all tap water originates from the diversion project, serving over 13 million citizens. In Hebei province, supporting engineering systems deliver water to approximately 70% of the population, while in Henan, the network covers 15 prefecture-level cities reaching 38 million residents. Throughout its operation, water quality along the route has consistently maintained Class II or higher on China's surface water evaluation scale. Beyond municipal supply, the canal has contributed to ecological restoration across the North China Plain, long plagued by severe groundwater depletion. By redirecting surplus reservoir capacity, the project has provided ecological replenishment to over 50 local rivers and lakes. Water quality in the Baiyangdian wetland—the largest freshwater wetland in northern China—improved from below Class V to a stable Class III. Furthermore, monitored shallow and deep groundwater levels across the Beijing-Tianjin-Hebei management zone have rebounded by 3.19 meters and 8.46 meters respectively compared to 2015 levels, causing long-dormant natural springs in Hebei to flow again. To manage the canal network, China South-to-North Water Diversion Group has implemented a digital twin scheduling framework that connects and controls dozens of reservoirs. The automated dispatch system generates execution commands remotely, maintaining a 99.91% success rate at station sluice gates and delivering 534 million cubic meters of extra water beyond original targets during ice-freeze periods over the past three years. The group continues to roll out smart inspection tools and AI-driven monitoring networks across its operational nodes.