Manghai Reservoir

　　    The Manghai Reservoir project is located in Minglang Township, south of Yongde County. It is 45 kilometers from the county town, situated on the Hongshi River, an upstream tributary of the Yongkang River, belonging to the Nujiang River system. With an elevation ranging between 2,000 and 2,060 meters, the reservoir sits at a high vantage point, controlling most of the arable land in the southwestern part of Yongde County. It is a comprehensive system project primarily for agricultural irrigation, while also providing drinking water for towns, villages, and supporting power generation. It serves as a critical infrastructure project for Yongde’s poverty alleviation, solving the food and clothing needs of nearly 80,000 people in mountainous areas and contributing to the construction of an electrified county. It is currently the largest water conservancy project built in the Lincang region.

　　    The dam of Manghai Reservoir in Yongde County is 69.41 meters high, with a crest length of 187.8 meters and a spillway stretching 309 meters. The total storage capacity is 31.1 million cubic meters. The east and west main canals have a combined length of 80.28 kilometers, providing irrigation for 50,500 mu of farmland and solving the drinking water difficulties for 18,500 people, including the completion of a tunnel stretching 535.46 meters.