Influence of Sanmenxia Water Control Project on Xiaolangdi Water Control Project

The influence of Sanmenxia water control project on Xiaolangdi water control project is as follows: it can reduce the burden of Xiaolangdi water control project, better control the flood of the Yellow River, use its sediment storage capacity to intercept and adjust sediment, and slow down the siltation and elevation of the downstream river bed.

Sanmenxia Water Control Project is the first large-scale comprehensive water control project built on the main stream of the Yellow River after the founding of New China, which focuses on flood control and takes into account the tasks of ice prevention, irrigation, siltation reduction, water supply and power generation. It is an important part of flood control and siltation reduction engineering system in the lower reaches of the Yellow River.

Located in the middle and lower reaches of the Yellow River, the hub controls the Yellow River basin area of 688,400 square kilometers, accounting for 9 1.5% of the basin area, and controls 89% of the water volume and 98% of the sediment volume of the Yellow River. The hub project started construction in April of 1957, and was put into storage in September of 1960. It was basically completed and put into operation in April of 196 1 year.

For reference only, there is no authoritative data.