Polder Bellenkopf/Rappenwört, Earthworks 1.BA:

The Bellenkopf / Rappenwört (BeRa) polder is part of the Integrated Rhine Program (IRP) in the Karlsruhe district. The retention area (RHR) will have a retention volume of approx. 14 million m3 on approx. 510 ha. The polder consists of a large number of individual measures, which are divided into 9 lots. These are further subdivided into planning and construction lots.

The planning approval decision has been available since December 2020. The completion target of the construction is 2028. In accordance with nature conservation regulations, compensatory measures are prescribed to compensate for and replace unavoidable interventions in nature and landscape. This includes, among other things, the production of groundwater-influenced ponds. These services are the subject of this call for tenders.

Further details can be found in the award documents on the award platform (e.g. building description, course, plans).

The tender includes the following services:

- Construction and maintenance of amphibian and reptile protection fences.

- Earthworks, excavation of 3,900 m3 of soil.

- Construction of a kingfisher breeding wall.

Further details can be found in the award documents on the award platform (e.g. building description, course, plans).