The risk of flooding increases through intensified rainfalls and snowmelt. That is why flood protection is a measure for protection of the population and material goods against the floods arising through high water.
Successful flood protection can be pursued through vertical filter sections or drainage wells.
Project: flood protection at the Elz River estuary/Nonnenweier
Scope of delivers/objective: Flood protection by reacting to high water phases of the Upper Rhine River. Approx. 30 metre-deep DN 2000 gripper boreholes and self-service extension, Rilsan-coated in DN 1200, were created during this project. If the Rhine reaches flooding stage, the water is conducted into retention basis, which in turn are pumped by means of 9 large wells now in existence.