Various developments and advancements in construction technology have made it possible to construct beautiful structures in overly water-logged areas, a feat that was not possible until recent years. These beautiful structures can stand because of the nature of the foundations constructed for the structures.

Indeed, constructing these foundations involves the application of specific methods. A standard method used when constructing foundations in water-logged areas is dewatering.

Dewatering is the process of reducing the water content present in the soil in a specific region. There are several ways of dewatering depending on the soil in contention. These dewatering methods include good deep construction, drainage construction, freezing process, soil stabilization using special chemicals, WellPoint system, constructing sand grains, and electro-osmosis.

This article will highlight some top essential things about using a WellPoint system for a foundation in water-logged areas. Read on to discover more interesting information.

What is A WellPoint System?

The WellPoint system of dewatering involves using a pump and a drilled well point in the area where construction is ongoing to remove excess water in the soil. The beauty of this dewatering system is that it offers much versatility where it can be used on any soil type. It is economical. It produces a maximum result based on what is needed for construction.

Components of WellPoint Systems

WellPoint dewatering systems primarily consist of four components to function effectively. These components include:

  1. Riser Pipes: These pipes are sunk into the WellPoint via jetting. They rise water from the WellPoint(s).
  2. Header pipes: The outer pipes collect extracted water from the riser Pipes and channel it to a specific location or container. They collect water from riser Pipes and head the water in a specific direction.
  3. Well points: These are typical wells dug around the construction area. Their depth varies depending on the level of water present in the soil. These points have perforated pipes with ball valves to regulate the water flow and screens to prevent mud from entering the water.
  4. Pumps: These extract water from the soil through the WellPoint(s).

How to Use WellPoint Systems for Foundation in Water-logged Area

There are specific steps to follow to ensure that your WellPoint system effectively dewaters a water-logged area. These steps include:

  1. Construct WellPoint(s) by jetting, then using a water jet, allow the water from the WellPoint to run till it becomes clear. Typically, well points are placed at a distance of 1-3meters apart. These points should be constructed to enclose the construction area.
  2. Connect the riser pipes to the WellPoint(s).
  3. Using the suction force from a suction pump, collect water from the WellPoint through the riser pipes.
  4. Use the header pipes to direct and collect the water to a container or a specific location.
  5. Continue the process until you achieve a construction area that is suitable for construction.


The depth and number of WellPoint(s) used in a construction area for dewatering depend on the nature of the place. However, WellPoint systems can be regarded as one of the most effective, reliable, and versatile dewatering methods.

All wellpoint dewatering systems must utilise the latest dewatering equipment and technology. This article has provided details that best explain the WellPoint system of dewatering. It has also examined some components of the wellpoint system to help you understand better.