Romney Lock
Romney Lock from downstream
Waterway	River Thames
County	Berkshire
Maintained by	Environment Agency
Operation	Hydraulic
First built	1798
Latest built	1980
Length	78.50 m (257 ft 7 in)[1]
Width	7.45 m (24 ft 5 in)[1]
Fall	2.01 m (6 ft 7 in)[1]
Above sea level	60 feet (18 m)
Distance to Teddington Lock	23 miles (37 km)
Power is available out of hours

v t e Romney Lock
Legend
River Thames Clewer Mill Stream Boveney Lock (and boat rollers) Race Course Yacht Basin Site of old mill Cuckoo Weir A332Queen Elizabeth Bridge -- (Windsor & Eton Bypass) Windsor Railway Bridge Baths Island Deadwater Ait Firework Ait Windsor Bridge moorings Site of old mill weir Romney Lock Jubilee River -- (fromBoulter's Lock) Black Potts Railway Bridge River Thames

Romney Lock is alock on theRiver Thames in England nearWindsor andEton, about half a mile downstream ofWindsor Bridge. It is on the Windsor side of the river next to a boatyard and adjoinsRomney Island, a long strip-shapedait in the middle of the river. The first lock was built by theThames Navigation Commission in 1798.

The weir is some distance upstream near the end of Romney Island and runs across the river toCutlers Ait. A small 200kWhydroelectric generation station was installed in 2011 to supply electricity toWindsor Castle.^[2][3]

The first proposal for a pound lock was in 1774 which was to be further upstream atFirework Ait byWindsor Bridge. However nothing happened until the lock was opened on the present site in 1797, built of oak. There was no weir at the site previously and because of protests, none was built at that time. Barges were still liable to pay the lock fee even if they used the other channel. By the following year a weir was found to be indispensable, and so it was built. The lock was rebuilt by theThames Conservancy in 1869 and the weir was rebuilt further upstream at the beginning of the 20th century.^[4] The lock was rebuilt again in 1979/80.

The lock can be reached from Windsor down a long single track road which starts from the car park behindWindsor and Eton Riverside railway station.

Eton College is on theleft bank, beyond Cutler's Ait immediately upstream of which is the compact townEton itself whereWindsor Bridge crosses. On the Windsor bank the river skirts the town centre and set close to it upstream of Windsor Bridge is an islet, the smallest named on the Thames,Firework Ait and similarlyDeadwater Ait. Just upstream of the islets are theIsambard Kingdom Brunel-designedWindsor Railway Bridge for the second railway serving the town which crossesBaths Island, and the late 20th century road bridgeQueen Elizabeth Bridge. Cuckoo Weir Stream is a short backwater taking a left bank route under Queen Elizabeth Bridge — on theright bank associated withClewer is the confluence of theClewer Mill Stream. The main river then has a sharp Z-bend nearWindsor Racecourse, then continues past open fields near the village ofEton Wick before it reaches Boveney Lock.Rowing on the reach has been reduced by the 2006 creation ofDorney Lake in the ancient and modern civil and ecclesiastical parishesDorney.

Thames Path

TheThames Path follows the track on the south bank to Windsor and then crosses Windsor Bridge to the north (Eton) side, where it continues to Boveney Lock.

• Locks on the River Thames
• Rowing on the River Thames

51°29′30″N0°36′15″W / 51.49174°N 0.60422°W /51.49174; -0.60422

• Locks on the River Thames

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