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A pound lock has a chamber with gates at both ends that control the level of water in the pound. In contrast, an earlier design with a single gate was known as a flash lock. [4] Pound locks were first used in China during the Song dynasty (960–1279 CE), having been pioneered by the Song politician and naval engineer Qiao Weiyue in 984. [5]
A pound lock was eventually constructed between 1851 and 1852, to accommodate barges up to 108 by 20 feet (32.9 by 6.1 m). [1] Use of the river was toll-free, up to the lock at Old Ford, and the principle was maintained by a clause in the enabling Act of Parliament.
Lock (water navigation)#Pound lock To a section : This is a redirect from a topic that does not have its own page to a section of a page on the subject. For redirects to embedded anchors on a page, use {{ R to anchor }} instead .
A short pound on the Chesterfield Canal in England, United Kingdom. A canal pound (from impound), [1] reach, or level (American usage), is the stretch of level water impounded between two canal locks. Canal pounds can vary in length from the non-existent, where two or more immediately adjacent locks form a lock staircase, to many kilometres/miles.
This was to allow restoration of the next four locks at the top of the flight. [20] Work on locks 20, 19, 18 and 17 started in 2010 and was completed in 2011. [21] The Fourteen Locks Canal and Conference Centre is next to the pound below the top lock and includes exhibits about the canal, changing displays of local art, a meeting room and a tea ...
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The Hackney Cut is 2 miles (3.2 km) long from Lea Bridge road bridge to Old Ford Locks. [18] Excess water from the Navigation passes over the weir into the former natural channel of the River Lea that passes in a large meander to the east of the modern water course, forming the boundary with the London Borough of Waltham Forest.
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