lock
fall structure with a fixed chamber in which the water level changes
Lower Granite Dam
gravity dam on the Snake River, Washington, United States
Crossed Locks in Emden
architectural structure in Emden, Lower Saxony, Germany
Marbach sluice
Sluice on the Neckar
water-saving lock
lock with several connected basins to reduce water loss when operating the lock
Marbach weir
weir on the Neckar
Bingley Five Rise Locks
staircase lock on the Leeds and Liverpool Canal at Bingley
Wootton Top Lock
lock in Wootton Rivers, Wiltshire, England, UK
Abingdon Lock
lock on the River Thames in England
Bromley Stop Lock
lock in London Borough of Tower Hamlets, London, England, UK
Charleroi Locks & Dam
dam in Charleroi, Pennsylvania and Monessen, Pennsylvania
City Mill River
lock in London Borough of Newham, London, England, UK
Clifton Lock
lock in Oxfordshire, South East England, England, UK
Cookham Lock
lock with weirs situated on the River Thames near Cookham, Berkshire
Glover Wilkins Lock
lock in Mississippi
Grafton Lock
lock on the River Thames in Oxfordshire, England
Jesus Lock
bridge in Cambridge, Cambridgeshire, England, UK
Lower Monumental Dam
dam in Franklin and Walla Walla counties, Washington, U.S
Starved Rock Lock and Dam
dam in LaSalle County, Illinois, United States of America
Widows Bar Dam
historical dam from 1924 in Alabama's Tennessee River
Willamette Falls Locks
lock system on the Willamette River in Oregon, United States
Old Ford Lock
lock on the Regent's Canal, in the London Borough of Tower Hamlets
Hurley Lock
lock and weir on the River Thames in England
Lunde Lock
part of the Telemark Canal
Willow Island Lock and Dam
dam in Ohio/West Virginia border
Gatun Locks
cultural monument of Panama
Ham Lock
lock
Teddington Lock
Series of locks on the River Thames in London
Ishii lock
canal lock in Ishinomaki, Miyagi, Japan
Sheffield Lock
lock in Theale, West Berkshire, England, UK
Kentucky Dam
dam in Marshall County, Kentucky, United States of America
Bell Weir Lock
lock on the River Thames in England
Black Rock Lock
Marine navigation channel near Buffalo, New York
Brandon Road Lock and Dam
lock & dam on the Des Plaines River in Joliet Township, Will County, Illinois
Cromwell Lock
lock in Cromwell, Nottinghamshire, England, UK
Delph Locks
lock in Dudley, West Midlands, England, UK
Fourteen Locks
series of locks in Newport, Wales
Ice Harbor Dam
dam in Franklin / Walla Walla counties, Washington
Marlow Lock
lock and weir on the River Thames in Buckinghamshire, England
New Savannah Bluff Lock and Dam
dam in South Carolina, United States of America, United States of America
Old Ford Lock
Lock on the River Lee Navigation, London, England
Olmsted Locks and Dam
dam in Illinois / Ballard County, Kentucky United States
Tees Barrage
dam in the United Kingdom
Three Mills Lock
lock on Prescott Channel
Tottenham Lock
paired lock on the River Lee Navigation in the London Borough of Haringey
John C. Stennis Lock and Dam
lock and dam in Mississippi, United States