Garston Lock (grid reference SU655707 ) is a lock on the Kennet and Avon Canal. It is near the M4 motorway and near Reading, England.
Garston Lock was built between 1718 and 1723 under the supervision of the engineer John Hore of Newbury, and this stretch of the river is now administered by Canal & River Trust and known as the Kennet Navigation. It has a rise/fall of 7 ft 7ins (2.29m). [1]
One of only two remaining working examples of turf sided locks on the canal [2] (the other being Monkey Marsh Lock [3] ), Garston Lock has been described as needing "more water to operate than the now more common brick or stone-sided variety" as the sloping sides increase the volume of the lock. [4]
The two sets of lock gates work differently: the upper set operates via a mechanical system, while the lower gates are hydraulic. [5] The top part of the lock chamber has sloping banks which are covered by vegetation of various types rather than by turf. An arrangement of steel rails ensures that boats stay in the centre of the lock [6] during the rise/fall of 7 ft 7 in (2.31 m).
The lock is a grade II* listed building. [7]
Two pillboxes dating from World War II at the northwest [8] and southeast [9] corners of the lock, which were built as anti tank defences, are also listed buildings.
The Kennet and Avon Canal is a waterway in southern England with an overall length of 87 miles (140 km), made up of two lengths of navigable river linked by a canal. The name is used to refer to the entire length of the navigation rather than solely to the central canal section. From Bristol to Bath the waterway follows the natural course of the River Avon before the canal links it to the River Kennet at Newbury, and from there to Reading on the River Thames. In all, the waterway incorporates 105 locks.
A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways. The distinguishing feature of a lock is a fixed chamber in which the water level can be varied; whereas in a caisson lock, a boat lift, or on a canal inclined plane, it is the chamber itself that rises and falls.
Blake's Lock is a lock situated on the River Kennet in Reading, Berkshire, England. It is on the short reach of the River Kennet which is administered as if it were part of the River Thames and is hence owned and managed by the Environment Agency.
Hanham Lock is a canal lock situated on the River Avon, at the village of Hanham near Bristol, England.
The Semington Locks are situated at Semington, Wiltshire on the Kennet and Avon Canal, England.
Tyle Mill Lock is a lock situated near Tyle Mill and the village of Sulhamstead on the Kennet and Avon Canal, England.
Sheffield Lock, at grid reference SU648706, is a lock on the Kennet and Avon Canal, in the civil parish of Burghfield in the English county of Berkshire. It is also sometimes known as Shenfield Lock.
Dun Mill Lock is a lock on the Kennet and Avon Canal, near Hungerford, Berkshire, England.
Brunsdon Lock is a lock on the Kennet and Avon Canal, near Kintbury, Berkshire, England.
Dreweatt's Lock is a lock on the Kennet and Avon Canal, between Kintbury and Newbury, Berkshire, England.
Hamstead Lock is a lock on the Kennet and Avon Canal, at Hamstead Marshall between Kintbury and Newbury, Berkshire, England.
Newbury Lock is a lock on the Kennet and Avon Canal in the town centre of Newbury, in the English county of Berkshire. It has a rise/fall of 3 ft 6 in, and is situated just upstream of Newbury Bridge.
Monkey Marsh Lock is a lock on the Kennet and Avon Canal, at Thatcham, Berkshire, England.
Heale's Lock is a lock on the Kennet and Avon Canal, between Thatcham and Woolhampton, Berkshire, England.
Aldermaston Lock is a lock on the Kennet and Avon Canal, at Aldermaston Wharf in the English county of Berkshire. It stands at the junction of the civil parishes of Padworth, Beenham and Aldermaston.
Padworth Lock is a lock on the Kennet and Avon Canal, at Aldermaston Wharf in the civil parish of Padworth in the English county of Berkshire.
Caen Hill Locks are a flight of 29 locks on the Kennet and Avon Canal, between Rowde and Devizes in Wiltshire, England.
Ufton Lock is a degated lock on the Kennet and Avon Canal, between Padworth and Sulhamstead, Berkshire, England.
John Hore was an English engineer, best known for making the River Kennet and River Avon navigable. Hore was one of the earliest English canal engineers, and Sir Alec Skempton wrote that he was "in the first rank among the navigation engineers". The Hutchinson Chronology of World History described his work on the Kennet navigation as "[setting] a new standard for inland waterways, and is an important forerunner of the canals of the Industrial Revolution".