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12-792: In a more narrow sense, the Chicago Harbor is that artificial harbor on Lake Michigan located at the mouth of the Chicago River bounded by outer breakwaters to the north and east, Northerly Island to the south, and the Chicago shoreline to the west. The main entrance to this harbor is marked by the Chicago Harbor Lighthouse . The Jardine Water Purification Plant , Navy Pier , the Chicago Harbor Lock , Coast Guard Station Chicago, two municipal harbors (DuSable Harbor and Monroe Harbor),

24-399: A body of water is protected and deep enough to allow anchorage. Many such harbors are rias . Natural harbors have long been of great strategic naval and economic importance, and many great cities of the world are located on them. Having a protected harbor reduces or eliminates the need for breakwaters as it will result in calmer waves inside the harbor. Some examples are: For harbors near

36-600: A dry dock, Mahdia in Tunisia from the 7th century BC, (which measured 72 metres x 56 metres) and one from Kition in Cyprus . In ancient times "cothon" was only used to describe the harbour at Carthage. In modern times, however, archaeologists use the term to refer to similar ancient harbours constructed of a man-made basin connected to the sea by a channel. The name comes from an island in Carthage's harbour. The cothon at Carthage

48-643: Is Long Beach Harbor , California , United States, which was an array of salt marshes and tidal flats too shallow for modern merchant ships before it was first dredged in the early 20th century. In contrast, a natural harbor is surrounded on several sides by land. Examples of natural harbors include Sydney Harbour , New South Wales, Australia, Halifax Harbour in Halifax, Nova Scotia , Canada and Trincomalee Harbour in Sri Lanka. Artificial harbors are frequently built for use as ports. The oldest artificial harbor known

60-704: Is a sheltered body of water where ships , boats , and barges can be moored . The term harbor is often used interchangeably with port , which is a man-made facility built for loading and unloading vessels and dropping off and picking up passengers. Harbors usually include one or more ports. Alexandria Port in Egypt, meanwhile, is an example of a port with two harbors. Harbors may be natural or artificial. An artificial harbor can have deliberately constructed breakwaters , sea walls , or jetties or they can be constructed by dredging , which requires maintenance by further periodic dredging. An example of an artificial harbor

72-561: Is the Ancient Egyptian site at Wadi al-Jarf , on the Red Sea coast, which is at least 4500 years old (ca. 2600–2550 BCE, reign of King Khufu ). The largest artificially created harbor is Jebel Ali in Dubai . Other large and busy artificial harbors include: The Ancient Carthaginians constructed fortified, artificial harbors called cothons . A natural harbor is a landform where a section of

84-653: The Chicago Yacht Club , and the Columbia Yacht Club are all located here. The Port of Chicago is within the greater Chicago Harbor in and around Calumet Harbor , the Calumet River, and Lake Calumet. The Chicago Park District operates a municipal harbor system in the greater Chicago Harbor in Lake Michigan for recreational boaters. With accommodations for 6000 boats, it is the largest system of its kind in

96-460: The North and South poles , being ice-free is an important advantage, especially when it is year-round. Examples of these are: The world's southernmost harbor, located at Antarctica 's Winter Quarters Bay (77° 50′ South), is sometimes ice-free, depending on the summertime pack ice conditions. Although the world's busiest port is a contested title, in 2017 the world's busiest harbor by cargo tonnage

108-637: The nation. The system comprises (from north to south) Montrose Harbor, Belmont Harbor, Diversey Harbor, DuSable Harbor, Monroe Harbor, Burnham Harbor, 31st Street Harbor, 59th Street Harbor, and Jackson Park Inner and Outer Harbors. 41°53′20″N 87°36′42″W  /  41.88889°N 87.61167°W  / 41.88889; -87.61167 This Chicago -related article is a stub . You can help Misplaced Pages by expanding it . Harbor A harbor ( American English ), or harbour ( Australian English , British English , Canadian English , Irish English , New Zealand English ; see spelling differences ),

120-496: Was a second level consisting of warehouses where oars and rigging were kept along with supplies such as wood and canvas. On the island structure, there existed a raised 'cabin' where the admiral in command could observe the whole harbour along with the surrounding sea. Altogether the inner docking complex could house up to 220 ships. The entire harbour was protected by an outer wall and the main entrance could be closed off with iron chains . Most records of Carthage were destroyed when

132-406: Was divided into a rectangular merchant harbour followed by an inner protected harbour reserved for military use only. This inner harbour was circular and surrounded by an outer ring of structures divided into a series of docking bays for ship maintenance, along with an island structure at its centre that also housed navy ships. Each docking bay featured a raised slipway . Above the raised docking bays

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144-827: Was the Port of Ningbo-Zhoushan . The following are large natural harbors: Cothon A cothon ( Greek : κώθων , lit.   'drinking vessel') is an artificial, protected inner harbour such as that in Carthage during the Punic Wars c.  200 BC. Cothons were generally found in the Phoenician world. Other examples include Motya in Sicily from the 6th century BC, which performed an uncertain purpose, (measuring 35 metres x 51 metres), although it has been suggested this cothon might even have been closable and drainable to form

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