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 between Ham and Teddington in the London Borough of Richmond upon Thames, England. Historically in Middlesex, it was first built in 1810.
Caversham Lock is a lock and main weir on the River Thames in England at Reading, Berkshire. Both the lock and main weir are connected to De Bohun Island. The Thames Navigation Commissioners built the original lock in 1778. Additional sluices north of View Island and Heron Island form the whole weir complex. A footbridge passes over all three islands to connect Lower Caversham to Reading via a route other than George Street and Reading Bridge.
Marsh Lock is a lock and weir situated on the River Thames in England, about 1 mile upstream of Henley Bridge in 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.
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.
Cookham is a historic Thames-side village and civil parish on the north-eastern edge of Berkshire, England, 2.9 miles (5 km) north-north-east of Maidenhead and opposite the village of Bourne End. Cookham forms the southernmost and most rural part of the High Wycombe urban area. With adjoining Cookham Rise and Cookham Dean, it had a combined population of 5,779 at the 2011 Census. In 2011, The Daily Telegraph deemed Cookham Britain's second richest village.
The Thames Path is a National Trail following the River Thames from one of its sources near Kemble in Gloucestershire to the Woolwich foot tunnel, south east London. It is about 185 miles (298 km) long. A path was first proposed in 1948 but it only opened in 1996.
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.
Molesey Lock is a lock on the River Thames in England at East Molesey, Surrey on the right bank.
Cookham Bridge is a road bridge in Cookham, Berkshire, carrying the A4094 road across the River Thames in England. It is on the reach above Cookham Lock and links Cookham on the Berkshire bank with Bourne End in Buckinghamshire.
Temple Lock is a lock and weir situated on the Buckinghamshire bank of the River Thames near Temple Mill Island opposite Temple Meadows and not far from Hurley, Berkshire. It was first built by the Thames Navigation Commissioners in 1773.
Marlow Lock is a lock and weir situated on the River Thames in the town of Marlow, Buckinghamshire, England, about 300m downstream of Marlow Bridge. The first pound lock was built by the Thames Navigation Commission in 1773.
Sunbury Lock is a lock complex of the River Thames in England near Walton-on-Thames in north-west Surrey, the third lowest of forty four on the non-tidal reaches. The complex adjoins the right, southern bank about 1⁄2 mile (0.80 km) downstream of the Weir Hotel.
Old Windsor Lock is a lock on the River Thames in England on the right bank beside Old Windsor, Berkshire. The lock marks the downstream end of the New Cut, a meander cutoff built in 1822 by the Thames Navigation Commissioners which created Ham Island. The lock and a wider footbridge give access to the island. Two weirs are associated; the smaller adjoins and the larger is upstream. The lock is the ninth lowest of the forty-five on the river.
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.
Shifford Lock is a lock on the River Thames in England. It is in the centre of a triangle formed by the small villages of Shifford, Duxford and Chimney in Oxfordshire. It is at the start of a navigation cut built with the lock by the Thames Conservancy in 1898. This was the only new lock built on the non-tidal Thames in the era of falling revenue after the Thames Conservancy took over responsibilities of the Thames Navigation Commission. It replaced a flash lock in a weir about 3⁄4 mile (1.2 km) downstream.
Formosa Island is an island in the River Thames in England at Cookham Lock near Cookham, Berkshire, with two smaller adjacent islands.
The Swift Ditch is a 2 km (1.2 mi) long artificial channel that formed a short-cut for river traffic to and from Oxford, across a meander of the River Thames in England. It was formerly the primary navigation channel. With the main river, it creates Andersey Island on the left bank of the Thames opposite Abingdon-on-Thames. Within a poem published in 1632, the Water Poet John Taylor wrote:
At Abingdon the shoals are worse and worse
That Swift Ditch seems to be the better course
Hedsor Water is a stretch of the River Thames near Cookham, Berkshire which runs to the north of Sashes Island. Hedsor Water was once the main navigation of the Thames but was by-passed by the construction of Cookham Lock in 1830. Navigation is only possible for the first 100 metres (330 ft) from the downstream end, where a few temporary moorings are available, except for smaller boats.
Sashes Island is an island in the River Thames in England at Cookham Lock near Cookham, Berkshire. It is now open farmland, but has Roman and Anglo-Saxon connections.
