Changjin Lake, an artificial lake located in the upper reaches of the Changjin River in the north of Korea, is located in South Hamgyong Road.
长津湖，是位于朝鲜北部长津江上游的人工湖，在咸镜南道。
A gravity dam with a height of 55 meters and a top length of more than 700 meters has been built to cut off the Changjin River.
建有高55米、顶长700多米的重力坝，将长津江截断。
The construction area is 54.2 square kilometers, with an average water depth of 3 meters and a storage capacity of more than 160 million cubic meters.
筑成面积54.2平方公里，按平均3米水深，库容超过1.6亿立方米。
Changjin Lake is the second largest artificial lake in North Korea. The lake water is introduced into the tunnel from Surabaya, passing through the Qianzhanling Mountains, flowing into the Chengchuan River in the south, and then into Xianxing Bay.
长津湖是朝鲜第二大人工湖。从泗水把湖水引进隧道，穿过赴战岭山脉，南流入城川江，后注入咸兴湾。
Four diversion type cascade hydropower stations have been built in Changjin Lake, with workers' sanatorium.
长津湖修建了4座引水式梯级水电站，设有工人疗养所。