definitionA sluice is a gate used to control the rate of flow of water. It fulfills the function of a flood protection and hinterland drainage. In normal operation the sluice is closed and open in dependence of the sea side water level and the water level in the hinterland. During the flood of a tidal circle if the water level sea side of the sluice raises above the water level in the hinterland the sluices closes its gates. During the ebb of tidal circle if the water level sea side of the sluice fall below the water level in the hinterland the sluice open its gates. The water can flow from the hinterland to the sea. By closing the sluice mechanically in case of a storm surge it act as a flood protection. Over the decades the design changed from simple wooden sluices to masonry sluices which can also act as ship locks.
Co-benefits and impactsBy closing the sluice, the spread of the flood in the hinterland is prevented. The sluice can also help in the drainage of the hinterland. It provides the benefit of shortening of dike line. The variable aperture size means sluice gates provide excellent water level control. The simple design is low cost and low maintenance. Requires manual operation and manual closure in floods.
(NSW Government, Sluice, accessed on Sept. 2016).
commentsThe terms sluice , sluice gate, knife gate, and slide gate are used interchangeably in the water and wastewater control industry.
Approaches (Show all)Protection
Case studies (Show all)Construction of pumping station with sluice and two weirs, Kuckuckshorn/Wilhelmsburg, Hamburg (20th c.)
Construction of flood protection walls and sluice, Cuxhaven, Lower Saxony (20th c.)
Construction of sluice and pumping station, Alsterfleet, Hamburg (20th c.)
Construction of sluice and pumping station, Bullenhausen, Lower Saxony (20th c.)
Sluice, Gose and Dove Elbe, Hamburg (20th c.)
Storm tide sluice, Friedrichskoog, Schleswig- Holstein (20th c.)
Scales (Show all)River Basin
Land uses (Show all)Urban
Time scales (Show all)Long term
Synonym of Resilience Measures (Show all)Sluice gate
Measure types (Show all)Engineering
Problem types (Show all)Coastal
Drain and Sewer
Illustrations (Show all)rm_images/Sluice_gates-KayEss-1.jpeg
Last modified: Sept. 21, 2016, 5:06 a.m.