Chertsey Lock

Chertsey Lock
Chertsey lock with Chertsey Bridge beyond
51°23′27″N 0°29′10″W / 51.39083°N 0.48611°W / 51.39083; -0.48611
Waterway	River Thames
County	Surrey
Maintained by	Environment Agency
Operation	Hydraulic
First built	1813
Latest built	1913
Length	61.16 m (200 ft 8 in) [1]
Width	6.40 m (21 ft 0 in)[1]
Fall	1.22 m (4 ft 0 in)[1]
Above sea level	37 feet (11 m)
Distance to Teddington Lock	13 miles (21 km)
Power is available out of hours

v t e Chertsey Lock
Legend
River Thames above Penton Hook Lock marina: Thorpe weir Penton Hook Lock Abbey River Intake channel to Queen Mary Reservoir Burway Ditch  M3  Abbey River (end) weir Chertsey Lock  B375  Chertsey Bridge Thames above Shepperton Lock

Chertsey Lock is a lock on the River Thames in England, against the left bank, an area of Green Belt including Laleham Park, the largest public park in Spelthorne. It faces the town of Chertsey and is the fifth-lowest of the forty-four locks along the non-tidal course of the river. Owing to a course alteration both banks at the site of the lock have been since medieval times in Surrey. Stone-built Chertsey Bridge built in 1785 is 210 m south (downstream) of the lock. The lock was built by the City of London Corporation in 1813, lengthened in 1893 and again in 1913.

The lock adjoins a small thin island created in its building accessible by boat that connects Chertsey Weir.