Moat
Videos
A moat is a deep, broad ditch dug around a castle, fortification, building, or town, historically to provide it with a preliminary line of defence. Moats can be dry or filled with water. In some place
Moat at Beaumaris Castle, Wales
North view of the fortress of Buhen in Ancient Egypt.
A medieval moat castle in Steinfurt, Germany
The 17th-century fortified town of Naarden, Netherlands, showing bastions projecting into the wet moat
Sluice
Videos
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.
Moat
…Moats can be dry or filled with water. In some places, moats evolved into more extensive water defences, including natural or artificial lakes, dams and sluices. In older fortifications, such as hillforts, they are usually referred to simply as ditches, although the function is similar. In later periods, moats…
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