Dike restoration in Xanten-Kleve
Pumping station with fish passage
Engineering services
Engineering structures, LPH 5-7
Technical equipment, LPH 5-9
Structural engineering, LPH 1-6
Special services
- Technical construction management
- Planning and support during commissioning
- Ecological construction supervision
- Demolition planning for the existing pumping station
Client
Deichverband Xanten-Kleve
Oraniendeich 440
47533 Kleve
Processing period
Planning: 2017 - 2018
Construction: 2018 - 2021
Contact
Dipl.-Ing. Olaf Häußler
Project management
T +49 201 89 67-225
o.haeussler@dahlem-ingenieure.de
Short description
Increased flood protection requirements have made it necessary to carry out renovation work on the dyke section between the B 220 and Griethausen. Here, large sections of the existing dyke will be moved back to give the Rhine more flow cross-section. The L8 road and cycle path running along the top of the dyke will be dismantled and rebuilt as part of the renovation work. In future, the current U-shaped course of the dyke line at Kellener Altrhein and Altrhein-Schöpfwerk will be eliminated. The dyke line will be straightened and will connect to the already renovated dyke before Griethausen. A new pumping station with fish ladders will be built at the new Altrhein/dyke line crossing.
The new flood pump station is equipped with fish protection screens, fish ladders and double flood protection per culvert. A fish trap, designed as a double trap for ascending and descending fish, is used to monitor the success of the system. It is being investigated whether significant improvements can be demonstrated under moderate water management conditions, such as low discharge or temporary flood closure. An approximately 400-meter-long open waterway is planned between the existing and relocated dykes. A new tilting weir regulates the water level in the Kellener Altrhein.
Increased flood protection requirements have made it necessary to carry out renovation work on the dyke section between the B 220 and Griethausen. Here, large sections of the existing dyke will be moved back to give the Rhine more flow cross-section. The L8 road and cycle path running along the top of the dyke will be dismantled and rebuilt as part of the renovation work. In future, the current U-shaped course of the dyke line at Kellener Altrhein and Altrhein-Schöpfwerk will be eliminated. The dyke line will be straightened and will connect to the already renovated dyke before Griethausen. A new pumping station with fish ladders will be built at the new Altrhein/dyke line crossing.
The new flood pump station is equipped with fish protection screens, fish ladders and double flood protection per culvert. A fish trap, designed as a double trap for ascending and descending fish, is used to monitor the success of the system. It is being investigated whether significant improvements can be demonstrated under moderate water management conditions, such as low discharge or temporary flood closure. An approximately 400-meter-long open waterway is planned between the existing and relocated dykes. A new tilting weir regulates the water level in the Kellener Altrhein.
Project data
- Renovation of a total of 4 km of main dike
- 2150 m reinforcement of the existing dike
- 1450 m construction of a new dike with relocation of the dike line by up to 200 m
- 4 km construction of a new road L8
- Partial demolition and conversion of the existing Old Rhine pumping station
- Construction of a pumping station with fish passage for the Kellener Old Rhine between L 8 and the new Banndeich line
New pumping station at Kellener Altrhein
The Kellener Altrhein pumping station is being rebuilt as part of a dyke renovation project. It will be responsible for pumping water from the Kellener Altrhein into the Rhine during high water levels. Two pumps with a capacity of 1000 l/s each are planned for this purpose. The water is pumped through two DN 800 pressure pipes, each assigned to one of the pumps, through the dyke body into the Rhine foreland. The pressure pipes are protected against backflow by a mechanical backflow valve at the outlet on the water side. The valves are opened by the water pressure when the pumps are in operation. Each pressure pipe is equipped with a shut-off valve that can be operated automatically.
As long as there is no flooding, the water flows through an open culvert with a fish ladder. The culvert consists of two box profiles. A basin fish ladder is installed in the eastern box profile. The western box profile serves to bypass the fish ladder when water levels are high and is equipped with a dam plate that regulates the surge water level for bypassing via the SPS.
To prevent backwater during Rhine floods, each box profile is equipped with a lift gate that closes automatically when the water level reaches 11.00 m NHN. At the outlet of the culvert pipes, there is a check valve with a counterweight that closes automatically when the Rhine water level rises. The valves can be opened and closed using a stationary winch via the SPS.
Power supply and control of all system components is provided by the equipment in the technical building on the dike crest.
The Kellener Altrhein pumping station is being rebuilt as part of a dyke renovation project. It will be responsible for pumping water from the Kellener Altrhein into the Rhine during high water levels. Two pumps with a capacity of 1000 l/s each are planned for this purpose. The water is pumped through two DN 800 pressure pipes, each assigned to one of the pumps, through the dyke body into the Rhine foreland. The pressure pipes are protected against backflow by a mechanical backflow valve at the outlet on the water side. The valves are opened by the water pressure when the pumps are in operation. Each pressure pipe is equipped with a shut-off valve that can be operated automatically.
As long as there is no flooding, the water flows through an open culvert with a fish ladder. The culvert consists of two box profiles. A basin fish ladder is installed in the eastern box profile. The western box profile serves to bypass the fish ladder when water levels are high and is equipped with a dam plate that regulates the surge water level for bypassing via the SPS.
To prevent backwater during Rhine floods, each box profile is equipped with a lift gate that closes automatically when the water level reaches 11.00 m NHN. At the outlet of the culvert pipes, there is a check valve with a counterweight that closes automatically when the Rhine water level rises. The valves can be opened and closed using a stationary winch via the SPS.
Power supply and control of all system components is provided by the equipment in the technical building on the dike crest.
