A series of canals and pipelines stretching over 1,400 kilometers began diverting water on Friday from China’s longest river, the Yangtze, directly to the country’s arid northern regions, including capital city Beijing. The completion of the water scheme marked major progress in the nation’s enormous south-to-north water diversion project, the largest of its kind in the world at an estimated cost of 500 billion yuan (about 80 billion U.S. dollars). The project, which aims to alleviate water shortages in the north, is another engineering achievement by the Chinese. The Beijing-Hangzhou Grand Canal, the world’s longest man-made river, was launched in the 13th century as a main waterway for grain transport between the south and north in ancient China. The launch of the new waterway will see water continuously supplied through the middle route of the south-to-north water diversion project.