大同江南浦船闸是大同江渠化工程的最下一个梯级——南浦水闸枢纽工程的主要组成部分,位于南浦市(南浦港)下游22公里的大同江口。南浦水闸是一座防咸蓄淡,发展农田灌溉;增加闸上航道和南港的水深,改善和发展大同江航运及海路运输;防止咸水随 Datong Jiangnanpu Ship Lock is the main step of the Nanchong Sluice Dam Project, the next step of the Datong River Channel Project, located at the Datong River Estuary, 22 kilometers downstream of Nanpu (Nanpu Port). Nanpu Sluice is a saltwater-saving and water-saving project for developing farmland irrigation; increasing the water depth of the gate channel and the Nangang River, improving and developing the shipping and sea transport of the Datong River;