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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 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.
Staircase lock of eight locks constructed by Thomas Telford in 1811 lifting boats 64 feet (20 m). Tardebigge Locks: Worcester and Birmingham Canal: grid reference: Longest flight in the UK. 30 locks rising 67m. Tuel Lane Lock: Rochdale Canal: grid reference: Deepest lock in the United Kingdom, with a fall of 19' 8½". [1] Watford Locks
Sandford Lock is a lock on the River Thames in England, situated at Sandford-on-Thames which is just south of Oxford. The first pound lock was built in 1631 by the Oxford-Burcot Commission although this has since been rebuilt. The lock has the deepest fall of all locks on the Thames at 8 ft 9in (2.69m) and is connected to a large island which ...
Richmond Lock is managed by the Port of London Authority. Most of the Environment Agency's locks and weirs are staffed by a lock keeper, who often lives in a house adjacent to the lock. The lock keeper's duties involve both operating the lock, and managing the river levels above the lock by adjusting the weir openings.
The pension triple-lock should be means tested to make sure the country is “growing” Conservative leader Kemi Badenoch has said, sparking criticism from Labour opponents. Speaking on LBC, the ...
If you want to lock in your rate for 60 days or more, the cost could climb to 2% of your loan. We talked about how locking in a 6.5% rate instead of a 7% rate on a $400,000, 30-year mortgage could ...
Abingdon Lock is a lock on the River Thames in England, less than 1 mile east and upstream of Abingdon, Oxfordshire, on the opposite bank of the river. It was originally built in 1790 by the Thames Navigation Commission. The weir runs across from the Abingdon side to the lock island, and has a pedestrian walkway across it.