Dewatering by wellpoints means to pump water from a specific area of construction works.

Wellpoints are pipes with different diameters at the end serving as suction wells for ground waters, connected with an exhaust pump.

The process to dewater by wellpoints is based on the pumping water from a borrow pit or a well, while the water surface in this soil is formed into a funnel that tends to the pumping site. This procedure is performed with the help of wellpoints along the perimeter of a borrow pit.