Schwingesperrwerk is a man-made movable barrier located on the Schwinge at its confluence with the Elbe near Stade , Germany . It is part of the flood control program for the Lower Elbe tidewater region , from the weir in Geesthacht to the mouth of the Elbe where it flows into the North Sea . Engineers constructed the Schwingesperrwerk after a storm surge caused severe floods in the region in 1962
storm surge caused severe floods
North Sea flood of 1962
Schwingesperrwerk