Sluice
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A sluice is a water channel containing a sluice gate, a type of lock to manage water flow and water level. There are various types of sluice gates, including flap sluice gates and fan gates.
A sluice gate
Xihe Regulating Sluice in Yangliuqing Town, Xiqing District, Tianjin Municipality
A small wooden sluice in Magome, Japan, used to power a waterwheel
Sluice gates near Henley, on the River Thames
Floodgate
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Floodgates, also called stop gates, are adjustable gates used to control water flow in flood barriers, reservoir, river, stream, or levee systems. They may be designed to set spillway crest heights in
Sluice
…Canal List of canals by country Hydraulic engineering Control lock Gatehouse (waterworks) – An (elaborate) structure to house a sluice gate Floodgate Lock Rhyne, drainage ditch in coastal areas Sluice related family names Zijlstra – A Dutch name referring to one who lives near a sluice Van der Sluijs…
Tokyo floodgates created to protect from typhoon surges
Discharge from a Howell-Bunger valve
Harran canal GAP
Floodgate floodwall