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A canal can be created where no stream presently exists. Either the body of the canal is dug or the sides of the canal are created by making dykes or levees by piling dirt, stone, concrete or other building materials. The finished shape of the canal as seen in cross section is known as the canal prism. [1]
The term 'canal' is often used to describe both human-made canals and river navigations, whether free-flowing waterways, or those with locks and dams or weirs. List of lists [ edit ]
Patowmack Canal (Potomac Canal) MD: 1795 1828 Consists of the Little Falls Canal, Great Falls Canal, Seneca Falls Canal, Payne's Falls Canal, and House Falls Canal VA: Pawtucket Canal: MA: 1796 Pennsylvania Canal: PA: Pennsylvania and Ohio Canal: PA: 1840 1877 82 mi (132 km) OH: Portage Canal: WI: 1876 1951 2 mi (3.2 km) Powell's Canal: VA
A plan and side view of a generic, empty canal lock. A lock chamber separated from the rest of the canal by an upper pair and a lower pair of mitre gates.The gates in each pair close against each other at an 18° angle to approximate an arch against the water pressure on the "upstream" side of the gates when the water level on the "downstream" side is lower.
In Scotland, firth or Kyle are also sometimes used as synonyms for strait. Many straits are economically important. Straits can be important shipping routes and wars have been fought for control of them. Numerous artificial channels, called canals, have been constructed to connect two oceans or seas over land, such as the Suez Canal.
The Suez Canal (/ ˈ s uː. ɛ z /; Arabic: قَنَاةُ ٱلسُّوَيْسِ, Qanāt as-Suwais) is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea to the Red Sea through the Isthmus of Suez and dividing Africa and Asia (and by extension, the Sinai Peninsula from the rest of Egypt).
The Panama Canal (Spanish: Canal de Panamá) is an artificial 82-kilometer (51-mile) waterway in Panama that connects the Caribbean Sea with the Pacific Ocean. It cuts across the narrowest point of the Isthmus of Panama , and is a conduit for maritime trade between the Atlantic and Pacific Oceans.
The flight of 16 consecutive locks at Caen Hill on the Kennet and Avon Canal, Wiltshire, England. Canals. List of canals in Australia; List of canals in Belgium ...