Water conservancy project is a project built to control and allocate the surface water and groundwater in nature and achieve the purpose of eliminating harm and promoting benefit. Also known as water engineering. Water is an indispensable precious resource for human production and life, but its natural state does not fully meet human needs. Only by building water conservancy projects can we control water flow, prevent flood disasters, and adjust and distribute water volume to meet the needs of people's life and production for water resources. Water conservancy projects need to build dams, dikes, spillways, sluices, inlets, channels, ferries, rafts, fishways and other different types of hydraulic structures.