Quang Bridge Dam is a 'regulating valve' for the To Lich River.

Recently, the To Lich River dike project at Quang Bridge (Thanh Liet Ward, Thanh Tri District, Hanoi) was officially put into operation, marking an important step forward in efforts to improve the environment and flow of the river, which has long been heavily polluted.

According to records, the rubber dam, the first project on the To Lich River, has been basically completed after more than half a year of construction. The project is considered a "regulating valve", holding and adjusting the river water level, especially in the dry season. When the water flow decreases, the dam will retain a part to maintain a minimum flow, limiting the drying of the riverbed. Thanks to that, water quality is improved, the flow is circulated better, contributing to reducing pollution.

The dam has a rubber bag structure connected to the foundation, which can adjust the water level by pumping or releasing air and water, with the advantages of low cost, fast construction, good resistance to subsidence and effective flood discharge. Previously, the construction unit also completed the collection of all 245 discharge gates on the To Lich River, leading wastewater to the Yen Xa Treatment Plant with a capacity of 200,000 - 230,000 m³/day and night for thorough treatment.

In particular, recently, water from West Lake has been added to To Lich River through a separate pipeline system. From now until September 20, the project of adding treated water from Yen Xa Plant will be completed, contributing to the "revival" of To Lich River - the symbol of Hanoi .

Panoramic view of the To Lich River dam project at Quang Bridge.

The To Lich River dam sluice gate project has been put into operation.

Rubber dams are likened to "valves" that help maintain and regulate river water levels.

The rubber bag structure is connected to the dam foundation, allowing the water level to be adjusted by air or water pump.

The water flow of To Lich River has improved significantly after the dam came into operation.

The dam helps maintain minimum flow, preventing the riverbed from drying out during the dry season.

The dam consists of main construction parts, including: Dam body, regulating valve, pumping station, pedestrian bridge and observation deck located on the dam floor.

All 245 discharge gates on To Lich River have been collected and wastewater has been led to Yen Xa Treatment Plant.

Wastewater collected from To Lich River is thoroughly treated at Yen Xa Factory.

It is expected that by September 20, the addition of treated water from Yen Xa Plant will be completed, "reviving" the To Lich River.

Source: https://baotintuc.vn/anh/dap-dang-cau-quang-van-dieu-tiet-cho-dong-song-to-lich-20250919070405966.htm