The Bellenkopf / Rappenwört polder (BeRa) 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 m 3 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 plan approval decision has been available since December 2020. In 2021, the planning services for the structural implementation will be awarded and the implementation planning will begin. The completion target of the structural implementation is 2028.

Further details on the project can be found in the tender documents on the award platform (documents number group 500). A brief description of the pursued lot formation can be found in document 510.

With this contract announcement, the awarding of freelance services for the following (planner) lot is pursued:

Planner lot PL5-1: Protective measures inland / pumping stations and Planner lot PL5-2: Protective measures inland / groundwater management.

The PL5-1 and PL 5-2 essentially contain the following services to be provided for the aforementioned objects:

On-site construction supervision, technical planning.

The PL5-1 and PL 5-2 essentially contain the following services to be provided for the aforementioned objects:

On-site construction supervision, technical planning.