Moat

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The moated manor house of Baddesley Clinton in Warwickshire, England

For information on the moat of a tropical cyclone, see eye (cyclone).

A moat is a manmade body of water that surrounds an area or building of significance, and almost always exist for the purpose of keeping something from crossing. Moats are known for their wide use in castles, but are not limited to this use.

1 Historic Uses
- 1.1 European Moats
- 1.2 Moats in Other Parts of the World
2 Modern Uses
3 References

[edit] Historic Uses

Moats were deep and wide water-filled ditches, excavated to provide a barrier against attack upon castle ramparts or other fortifications. A moat made access to the walls difficult for siege weapons, such as a siege tower or battering ram, that needed to be brought up against a wall to be effective. A very important feature was that a water-filled moat made very difficult the practice of sapping or undermining, that is to say digging tunnels under the fortifications in order to effect a collapse of the defenses.

The word was adapted in Middle English from the French motte "mound, hillock" and was first applied to the central mound on which a fortification was erected (see Motte and bailey), and then came to be applied to the excavated ring, a "dry moat". The term moat is also applied to natural formations reminiscent of the artificial structure.

[edit] European Moats

In the violent conditions of the 14th and 15th centuries in England, though defensive walling required a charter from the king, a moat round a manor house could deter all but the most determined intruders (illustration, top right). See also Ightham Mote. Moated fortresses are also evident in Ferrara, the Rocca Sanvitale in Fontanelleta, and the Rocca Scaglieri in Sirmione on the shores of Lake Garda.

Often streams were diverted in the Middle Ages to fill the ditch. Moats required upkeep. They had to be dredged for debris which could potentially form a traversable bridge from one side to another.

Withdrawable bridges spanned moats in the Middle Ages. At first they were only simple wooden bridges that could easily be dismantled if an enemy was about to breach the fortifications. Later flying bridges and drawbridges were used for moat spans.

Bodiam Castle rises from its moat

Moats sometimes had long wooden spikes in them, to prevent enemies from swimming across. The practice of stocking them with alligators, crocodiles, sharks or other dangerous animals is almost certainly a myth, however. [1]

[edit] Moats in Other Parts of the World

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While moats are commonly associated with European castles, they were also developed by North American Indians of the Mississippian culture as the outer defense of some fortified villages. The remains of a 16th-century moat are still visible at the Parkin Archeological State Park in eastern Arkansas.

Moats were also used in East Asia, such as the Forbidden City and Xi'an in China and Kokyo Imperial Palace in Japan; in Vellore in India and in Southeast Asia, such as at Angkor Wat in Cambodia and Chiang Mai in Thailand.

[edit] Modern Uses

Moats are no longer a significant tool of warfare, however, in some cases a moat may still serve as a line of defense from other threats, as well as a number of other creative uses. A moat wide and deep enough can prove an obstacle to armoured fighting vehicles.

[edit] Installation Security

The Catawba Nuclear Generating Station, for instance, has been constructing a concrete moat around some of the plant (other sides of the plant are bordering a lake). The moat is a part of industry wide added precautions after the September 11, 2001 attacks. Related individuals have made a point to claim that the moat is not connected to the new MOX fuel that the plant will be receiving.^[1]

"The concrete moat under construction at the station south of Charlotte has little to do with the utility's plans to start burning mixed-oxide fuel containing small amounts of weapons-grade plutonium next spring. Designed to prevent everything from passenger cars to military tanks from getting too close to the reactor, the moat is part of a post-Sept 11, 2001 security upgrade"[2]

[edit] Animal Containment

Moats rather than fences separate animals from spectators in many modern zoo installations. The structure, with a vertical outer retaining wall rising directly from the moat, is an extended usage of the ha-ha of English landscape gardening.

[edit] National Defense

In 2004 plans were suggested for a two-mile moat across the southern border of the Gaza Strip to prevent tunnelling from Egyptian territory to the border town of Rafah ^[2].