Polder Bellenkopf/Rappenwört, planting and biotope maintenance work 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 goal of the structural implementation 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 creation of orchards, field hedges and replacement habitats for sand lizards. These services are the subject of this call for proposals.
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:
- Felling and clearing of 7,300 m2 of woody areas
- Construction and maintenance of 280 m amphibian and reptile protection fence
- Planting of 300 fruit trees and tall trunks
- Planting of 830 heisters and 7,500 shrubs
- Sowing of 3.35 ha of smooth oat meadow
- Completion and development maintenance until 2026.
Further details can be found in the award documents on the award platform (e.g. building description, course, plans).