The English River Thames is navigable from Cricklade or Lechlade to the sea, and this part of the river falls 71 meters (234 feet). There are 45 locks on the river, each with one or more adjacent weirs. These lock and weir combinations are used for controlling the flow of water down the river, most notably when there is a risk of flooding, and provide for navigation above the tideway.
Teddington Lock is a complex of three locks and a weir on the River Thames in England between Ham and Teddington in the London Borough of Richmond upon Thames. It was first built in 1810.
Caversham Lock is a lock and main weir on the River Thames in England at Reading, Berkshire. Both structures connect to De Bohun Island, a long island. The original lock was built by the Thames Navigation Commissioners in 1778. Additional sluices north of verdant View Island and multiple home Heron Island form the whole weir complex. A footbridge passes over all three islands to connect Lower Caversham to Reading via an alternative route than George Street and Reading Bridge.
Marsh Lock is a lock and weir situated on the River Thames in England near Henley-on-Thames, Oxfordshire. The lock is close to the Berkshire bank, but accessed from the Oxfordshire side via two long walkways, the downstream one being near Mill Meadows. The first pound lock was built by the Thames Navigation Commission in 1773.
Sonning Lock is a lock and associated weir situated on the River Thames at the village of Sonning near Reading, Berkshire, England. The first lock was built by the Thames Navigation Commission in 1773 and it has been rebuilt three times since then. There is a weir a little upstream at the top of the island where Sonning Backwater separates from the main course of the river.
Bray Lock is a lock and weir on the River Thames in England near Bray and Dorney Reach, and is just above the M4 Bridge across the Thames. The lock is on the Buckinghamshire side of the river on the opposite bank from Bray itself and Maidenhead which are in Berkshire. Here, the county line stands roughly halfway between the lock and the opposite bank, following the course of the Thames itself. The pound lock was built by the Thames Navigation Commission relatively late in 1845 The lock keeper's cottage is on an island between the lock and the weir.
Sandford-on-Thames is a village and Parish Council beside the River Thames in Oxfordshire just south of Oxford. The village is just west of the A4074 road between Oxford and Henley.
Hambleden Lock is a lock with a long weir situated on the River Thames in England. The lock is on the Berkshire bank between Aston and Remenham. It was built by the Thames Navigation Commission in 1773, The lock is named after the village of Hambleden, a mile (1.5 km) to the north.
Day's Lock is a lock on the River Thames near Dorchester-on-Thames, Oxfordshire, England on the Dorchester side of the river.
Iffley Lock is a lock on the River Thames in England near the village of Iffley, Oxfordshire. It is on the southern outskirts of Oxford. The original lock was built by the Oxford-Burcot Commission in 1631 and the Thames Navigation Commission replaced this in 1793. The lock has a set of rollers to allow punts and rowing boats to be moved between the water levels.
Shepperton Lock is a lock on the River Thames, in England by the left bank at Shepperton, Surrey. It is across the river from Weybridge which is nearby linked by a passenger ferry.
Molesey Lock is a lock on the River Thames in England at East Molesey, Surrey on the right bank.
Marlow Lock is a lock and weir situated on the River Thames in the town of Marlow, Buckinghamshire, England. The first pound lock was built by the Thames Navigation Commission in 1773.
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.
Boveney Lock is a lock on the River Thames situated on the Buckinghamshire bank opposite the Windsor Racecourse and close to Eton Wick. Boveney is a village a little way upstream on the same side. The lock was first built in 1838 by the Thames Navigation Commission. The lock was rebuilt in 1898 closer to the Buckinghamshire bank, and a set of boat rollers were installed on the old site.
Culham Lock is a lock on the River Thames in England close to Culham, Oxfordshire. It is on a lock cut to the north of the main stream, which approaches the large village of Sutton Courtenay. The lock was built of stone by the Thames Navigation Commission in 1809.
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 8ft 9in (2.69m) and is connected to a large island which is one of three at this point.
Osney Lock is a lock on the River Thames in Oxford, England, where the village or island of Osney is next to the river.
Culham Bridge is a mediaeval bridge crossing a present backwater of the River Thames in England at Culham, Oxfordshire, near the town of Abingdon. The bridge crosses Swift Ditch which was at one time the main navigation channel of the River Thames until Abingdon Lock was built in 1790. The bridge formerly carried the A415 road from Abingdon to Dorchester, Oxfordshire, but was superseded in 1928 by a modern road bridge.
