lock
fall structure with a fixed chamber in which the water level changes
Meeker Island Lock and Dam
former dam in Minnesota, United States
Millers Ferry Lock and Dam
dam in Wilcox County, Alabama
Miraflores
lock of the Panama Canal
Old Hickory Lock and Dam
dam in Tennessee, United States of America, United States of America
Penton Hook Lock
lock on the River Thames in Surrey, England
Salmon Lane Lock
lock in London Borough of Tower Hamlets, London, England, UK
Sandford Lock
lock in Oxfordshire, England, UK
Swansea Barrage
dam in the United Kingdom
Camden Lock
grade II listed lock in London Borough of Camden, United kingdom
Peoria Lock and Dam
lock and dam on the Illinois River in Creve Coeur, Illinois
Montgomery Locks and Dam
lock and dam on the Ohio River in Beaver County, Pennsylvania, United States
New Cumberland Locks and Dam
dam in Ohio/West Virginia border
McCallum Lock Gates
bridge in Sri Lanka
Eisenhower Lock
canal lock on the Saint Lawrence Seaway
Richmond Lock and Footbridge
lock and pedestrian bridge, situated on the River Thames in south west London
Potter's Lock
lock
control lock
hydraulic engineering construction
Barrage Vauban
bridge in France
Garston Lock
lock on the Kennet and Avon Canal in Burghfield/Theale, Berkshire, England, UK
Keynsham Lock
Canal Lock
Greenham Lock
lock in Berkshire
Wire Lock
lock on Kennet And Avon Canal
Albert Lock
lock in Ireland
Benson Lock
lock on the River Thames in Oxfordshire, England
Britannia Stop Lock
former lock on the Limehouse Cut in Tower Hamlets, London
Cannelton Locks and Dam
dam in Perry County, Indiana / Hancock County, Kentucky US
Carpenter's Road Lock
lock in London Borough of Newham, London, England, UK
Caversham Lock and Weir
lock and weir on the River Thames in Berkshire, England
Day's Lock
lock in Oxfordshire, South East England, England, UK
John Rankin Lock
lock on the Tennessee–Tombigbee Waterway
Marseilles Lock and Dam Historic District
lock and dam complex on the Illinois River at Marseilles, Illinois, United States
Morgantown Lock and Dam
dam in Morgantown, West Virginia
Romney Lock
lock on the River Thames in Berkshire, England
St John's Lock
lock on the River Thames in Gloucestershire, England
Stanstead Lock
lock in Hertfordshire, England, UK
Jamie Whitten Lock and Dam
dam in Tishomingo County, Mississippi, United States of America
La Grange Lock and Dam
lock and dam on the Illinois River straddling Brown and Cass counties in Illinois
Newburgh Lock and Dam
dam in Indiana/Kentucky border
Emsworth Locks and Dam
locks and dam on the Ohio River in Allegheny County, Pennsylvania, United States
Racine Lock and Dam
dam in Ohio/West Virginia border
weir and lock complex Grave
weir and lock on the Meuse river near Grave, the Netherlands
Newt Graham Lock & Dam
lock and dam on the Verdigris River in Oklahoma, United States