- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 19 Oct 2020
Dewatering construction sites
Dewatering refers to the removal of groundwater and/or surface water from a site before construction work commences. This may be necessary on sites where there are trenches and excavations in which water can accumulate, in places where there is an inadequate slope for water run-off, or where there is a high water table.
- Vacuum filters.
- Filter presses.
- Drying beds.
- Sludge lagoons.
Care should be taken when pumping to ensure water is being discharged somewhere suitable, otherwise erosion and other problems can occur. Best management practices must be followed when pumping water to lakes, wetlands or directly into storm sewers.
Culvert, screen and outfall manual, (CIRIA C786) published by CIRIA in 2019, defines dewatering as: ‘The process of handling and/or reducing significant flows of water (especially groundwater) into an area where construction work is being undertaken.’
 Related articles on Designing Buildings Wiki
Featured articles and news
Prioritising tax considerations.
The four D creative process: discover, define, develop and deliver.
National Cyber Security Centre initiative is announced.
Reviewing trends and projections.
Legislation will establish initiatives to move towards net zero.
How to document contractor employment status.
Tech tools to help manage people and space post-pandemic.
A style that ranges from mock Tudor to arts and crafts to the 'Wrenaissance'.
Free guide from Secured by Design.
BREEAM strategy for sustainability and the circular economy.
Free tool to improve the construction programming process.
Are buildings doing what they're supposed to be doing?
Cities with quick access to everything by foot or bike.
The pressures and pinch points of global destinations.