We use the silt-reduction sluices and built banks of earth to prevent Hyper-Sediment concentration flow of the Yellow River into the diversion canals.Second, regularly mechanical dredging means.

• 一是涵闸工程管理的规章制度：引黄渠首工程启闭操作规程、引黄渠首工程检修规程、引黄渠首工程闸门启闭检修规程等。