Colthrop Lock was built between 1718 and 1723 under the supervision of the engineer John Hore of Newbury. The canal is administered by the Canal & River Trust. The lock has a rise/fall of 7 ft 7 in (2.31 m).[1]
References
^Pearson, Michael (2003). Kennet & Avon Middle Thames:Pearson's Canal Companion. Rugby: Central Waterways Supplies. ISBN0-907864-97-X.