The Chenghai Emergency Water Supply Project in Yongsheng County, administered by the Six Ministries, has been operating smoothly for six months since its commissioning.

Recently, the Yongsheng County Chenghai Basin Ecological Comprehensive Governance Water Conservancy Emergency Water Replenishment Project, participated in by the Sixth Engineering Project Department, underwent its first shutdown for maintenance. The project has been continuously supplying water for 6 months and is operating smoothly.

Chenghai Emergency Water Replenishment Project Jinsha River Water Intake Point (Level 1 Pontoon Pumping Station)

On September 24, 2020, the Chenghai Emergency Water Replenishment Project achieved the linked operation of three pumping stations, marking the official start of water delivery. Since October 2020, continuous pumping has been carried out. The Dong'an Level 1 and Level 2 pumping station units, water transmission pipelines and fittings, electrical automation systems, etc., are all operating well. The building structures and hydraulic structures are in good functional condition. No failures occurred during the continuous 6-month water replenishment process. This shutdown maintenance focuses on the pontoon, pumping station, water transmission pipelines and fittings, power supply system, automation system, and hydraulic structures.

Chenghai Emergency Water Replenishment Project Chenghai Outlet ("Jinsha Lishui" Stele)

Lake Chenghai is one of Yunnan's nine major plateau lakes. The Yongsheng County Chenghai Basin Ecological Comprehensive Governance Water Conservancy Emergency Water Replenishment Project is a key provincial demonstration project in Yunnan Province and a lifeline project for the protection of Chenghai. The project constructs three water pumping stations from Ludila to replenish water to Chenghai, increasing the amount of clean water entering Chenghai Lake, effectively curbing the continuous decline in the water level of Chenghai, allowing Chenghai to overcome the history of continuous decline in water level due to rainfall being less than evaporation, thus fundamentally achieving the goal of governing and protecting Chenghai. To date, the project has cumulatively replenished 18.2 million cubic meters of water to Chenghai, and the average water level of Chenghai Lake has risen from 1495.89m in September 2020 to 1496.11m in March 2021, greatly improving the local ecological environment and providing irrigation water for the Chenghai basin, promoting local economic and social development.

[Sixth Engineering Department/Wang Yao Editor/Hu Hengjin]