• Groundwater Dewatering for Construction and Infrastructure Projects

Groundwater dewatering in construction involves removing groundwater or surface water from the construction site. Dewatering is usually carried out by pumping or evaporation. It is typically done before excavation for foundations and helps lower the groundwater level that could cause problems during digging operations.

• Groundwater Dewatering Precautions

Groundwater dewatering activities must be performed correctly to avoid soil erosion at the construction site. The best discharge location should be chosen, even if far from water bodies or collection ponds. Various dewatering products can be used to remove sediments from pumped water, such as dewatering bags—thick geotextile fabric.

• Why Groundwater Dewatering?

Groundwater dewatering is used in most construction sites because of water accumulation in trenches, excavations, or areas with insufficient slopes for groundwater movement or high groundwater levels. This water must be removed to continue work as planned or to provide a safe working environment.

• Methods of Groundwater Dewatering

1. Open sump pumping.
2. Wellpoint system.
3. Deep well installation.