Boulter's Lock

Boulter's Lock
Boulter's Lock as a pleasure boat squeezes in and under the bridge
Waterway	River Thames
County	Berkshire
Maintained by	Environment Agency
Operation	Hydraulic
First built	1772
Latest built	1912
Length	60.80 m (199 ft 6 in)[1]
Width	6.47 m (21 ft 3 in)[1]
Fall	2.39 m (7 ft 10 in)[1]
Above sea level	77 feet (23 m)
Distance to Teddington Lock	31 miles (50 km)

v t e Boulter's Lock
Legend
River Thames Fleet River  A3094  road bridge weir Hedsor Wharf weir bridges Cookham Lock Formosa Island Strand Water White Brook Maidenhead Ditch Mill Race Kayaking Ray Mill Boulter's Lock Taplow mill Jubilee River -- -- (to Old Windsor Lock) Ray Mill Road West Grass Eyot Bridge Eyot Moor Cut  A4  Bath Road High St.(Chapel Arches) York Road Guards Club Island Great Western Main Line Maidenhead Railway Bridge Forlease Road York Stream Weir and boat rollers (proposed Green Lane lock) St Michael's Church, Bray Bray Cut Headpile Eyot Bray Lock, island and weir Bray Mill The Cut, Berkshire  M4  Motorway The Cut Bray marina River Thames

Boulter's Lock is a lock and weir on the River Thames in England north-east of Maidenhead town centre, Berkshire. The present 1912-built lock replaces those at this point of the river to the immediate east dating from the late 16th century and that of 1772 built by the Thames Navigation Commission. The lock is on the western side of the north–south flowing reach between the A4094 Maidenhead to Cookham road and Ray Mill Island. The name is variably used for the immediate surrounding area.

The weir is some way upstream of the lock, at the northern end of Ray Mill Island. It is one of the most popular whitewater freestyle kayaking areas on the River Thames, as it has been modified to allow kayakers to use it without causing disruption to other river users.