breakwater

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breakwater,

offshore structure to protect a harbor from wave energy or deflect currents. When it also serves as a pier, it is called a quay; when covered by a roadway it is called a mole. In the United States a breakwater commonly consists of a long mound of stone rubble and of cheaper materials like rubber tires and oil drums. The flow of waves up its slope, and the formation of swirls by its rough surface dissipate wave energy. A pneumatic breakwater consists of perforated pipes discharging air bubbles; another type has underwater pipes that direct streams of water against approaching waves to cause them to break. Breakwaters are also used to promote sedimentation, which, depending on the breakwater's alignment, will infill to produce a stable beach. The Chesapeake breakwater was the first built in the United States. See coast protectioncoast protection,
methods used to protect coastal lands from erosion. Beaches can exist only where a delicate dynamic equilibrium exists between the amount of sand supplied to the beach and the inevitable losses caused by wave erosion.
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breakwater

[′brāk‚wȯd·ər]
(civil engineering)
A wall built into the sea to protect a shore area, harbor, anchorage, or basin from the action of waves.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

breakwater

1. a massive wall built out into the sea to protect a shore or harbour from the force of waves
2. another name for groyne
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
It adds: "The project accepts the conclusion of experts that floating breakwaters - of any size or design - will never survive the wave length/height experienced during Storm Emma - and therefore removes the threat of a repeat of this disaster."
This means that unlike conventional cubic blocks, Cubipods have no flat surfaces that can adhere to each other, eliminating the danger that a breakwater will compact at the bottom and open up at the top.
The North Breakwater will soon reach its final length of 640 meters and will be rounded off before more accropodes are placed along its length.
With regard to Pervolia, the coastal front of the community has also lost about 20 metres due to erosion, despite the fact that six breakwaters have already been built," the announcement said.
In this study, we will propose a more economical design by integrating the oscillating buoy WEC into the existing box-type breakwaters. The oscillating buoy WEC works as a floating box in front of the breakwater towards the incident waves.
Van Oord Middle East Ltd's Dubai Branch project mandate includes the beaches, quay walls, rock edges and breakwaters at the islands.
The $105m (AED387m) contract, signed on Monday (29 June, 2015) with Van Oord Middle East in Dubai, includes beaches, quay walls, rock edges and breakwaters at Deira Islands.
The contract was signed on Monday with the Van Oord Middle East Dubai Branch, and includes beaches, quay walls, rock edges and breakwaters at Deira Islands, which is set to transform Dubai's Deira district into a world-class hub for tourism, living, retail and entertainment.
The breakwater construction work is a project of the Kinki Regional Development Bureau of the Ministry of Labor, Infrastructure, Transport and Tourism, which plans to erect movable breakwaters, 230 meters in total length, in the navigation channel at the harbor entrance as part of a major initiative to cope with the threat of tsunamis in the Kainan district of the port city of Shimotsu in Wakayama Prefecture.
While retaining the historical coverage on shoreline structure, coastal processes, and design and construction of breakwaters and related structures, this event will extend the marine energy theme initiated with the 2009 conference; with emphasis on aspects at the civil and coastal engineering interface, such as fluid loadings, resource modelling, interactions with the environment, construction, installation, cabling, servicing and maintenance.
Breakwaters & Coastal Structures Conference (9th: 2009: Edinburgh, Scotland) Ed.