abstract:Zhanggong District () is the administrative center of the prefecture-level city of Ganzhou in Jiangxi Province, China. The oldest part of Ganzhou's ancient sewage system named Fushou Gou (福寿沟, literally "Happiness and Longevity Ditch"), which was built during the eleventh century AD and still in use today,"Ganzhou: Song Dynasty sewage system still in service today", Guangming Daily website, in Chinese is located in Zhanggong District.