17.05.2019

Coastal Protection Measures and Lowland Drainage New construction of the Hadelner Canal lock

The Hadelner Canal combines with the Bederkesa-Geeste Canal to create the Elbe-Weser continuous inland waterway. The Hadelner Canal lock also fulfils another important function in addition to being a ship lock: This additional function is the drainage of the so-called Sietland area (“siet”" = low) with discharge direction to the Elbe. Since the lock also passes through a coastal protection dyke, which must be brought up to the current coastal protection level, this major project is also classified as an urgent coastal protection measure.

A new sluice structure and lock structure now fulfils all the requirements. As part of the new system, a pumping station comprising three pumps is being built in the area of the outlet towards the Elbe. Each of these pumps will have a capacity of 4 m³/s and will be able to pump the water from one drainage channel via a (DN 1400) pipe into the Elbe.

BÜSCH supplies the executing consortium of Ludwig Freytag/TAGU with three DN 1400 flap covers with impact absorbers for utilisation in pump pressure pipework. The three non-return flaps are built into the area of the pipe outlet and should prevent the water from the Elbe from being forced into the pipework during flooding.

Project

BÜSCH Flap covers

Flap cover DN 1400 with shock absorption
Flap cover DN 1400 with shock absorption
Laying the pump pressure lines
Laying the pump pressure lines
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