5th Edition | 2022
Conde del Guadalhorce Dam, Spain.
4th Edition | 2019
Panama Canal Authority, Panama.
3rd Edition | 2017
Terusan Wan Mat Saman (Wan Mat Saman Canal), Malaysia. Muda Agricultural Development Authority (MADA).
2nd Edition | 2015
Dutch Water Boards, Netherlands.
1st Edition | 2013
Dujiangyan Irrigation System, China. This is an irrigation infrastructure built in 256 BC during the Warring States period of China by the Kingdom of Qin. It is located in the Min River in Sichuan province, China, near the capital Chengdu. It is still in use today to irrigate over 5,300 square kilometers of land in the region.