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Dewatering

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Construction Processes

Dewatering is the temporary removal of groundwater from a construction site so that construction can be completed in dry conditions. For example, cofferdams and trenches are dewatered during the construction of bridges, culverts, and public utilities. The water is typically removed using well points, drilled wells, and power-driven pumps. Dewatering may also be carried out with the use of shallow sumps. The sumps are usually installed eight feet (2.4 m) below excavation elevation to collect and remove groundwater.[1]

[edit] References

  1. Dewatering. Water Bureau Dept. of Michigan. 15-04-2009.