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.
The weir is upstream of the lock and in the mid-channel. Kings Meadow, Reading, and buildings comprising homes and office blocks adjoin to the south of the lock itself. The island contains a typical lock-keeper's house, a crane depot, small boatyard, and large boathouse owned by the Environment Agency for occasional use by that authority and police in river patrol and maintenance of boats.
Wikipedia https://en.wikipedia.org/wiki/Caversham_Lock
Coordinates 51°27'38.502" N -0°57'50.952" E