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The historic Channahon Lock Number 7 on the I & M canal in morthern Illinois.
Rideau kanaal Sluis ottawa
The C and O Canal Trail At Lock 69 with Water Spilling out of the Dam Surrounded by Forest
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River cruise boat entering Lock and Dam 22 on Mississippi river
A lock on a man-made tributary diverting water from the natural river to the east  to overcome the annual variances in water depth on the river in order to maintain the shipping trade along the Mississippi River in the central United States.  This aerial view is just outside of St. Louis, Missouri on the Illinois side of the river.
Sunny Summer day landscape of a recreational trail beside the remains of a lock on the Hennepin Canal in Northern Illinois.
One of the canal locks  on the grounds of Chesapeake and Ohio Canal National Historical Park in Maryland n the winter of 2009.
A lovely day to travel along the river in summer.
Canal near James River in Virginia
The Pennyfield Lock has been restored on the C&O Canal and appears in working order except for the leakage. Otherwise, yet another C&O Canal picture in the heat of summer. But it is chained and padlocked, I mean a locked lock, couldn't resist.
Old Iron Bridge in Piedmont
Photo of the C & O Canal in Georgetown during May in Washington DC.
Petroleum barge and towboat locking through the Inner Harbor Navigation Canal Lock (also known as Industrial Canal Lock) in New Orleans, Louisiana, USA headed toward the Mississippi River in the background. The canal connects the Mississippi River with Lake Pontchartrain and the Gulf Intracoastal Waterway and associated port facilities. Photo take in 1953 before the Claiborne Avenue Bridge was built in 1957.
Looking down the historic I and M Canal at Lock 14 in LaSalle, Illinois.
Aerial view of a hydroelectric power station on the river.
Fort Hunter, NY - 6/3/13: Erie Canal lock structure in the Canal at Fort Hunter, NY.
Bridge at Moonville Tunnel in Ohio in Autumn
Gear for the locks at bulls Island hunterdon county n.j
St. Catharines, Canada.
A dam over a creek with a background of three wooden crosses
Vintage photograph taken circa 1870 of Boulter's Lock, a lock and weir on the River Thames in England on the eastern side of Maidenhead, Berkshire. A lock was first built here by the Thames Navigation Commission in 1772.
Lock Number 8 on the historical I and M Canal at Channahon State Park.  Channahon, Illinois, USA.
Canal locks
Massive gate inside the Miraflores locks on the Panama canal
Canal lock, on Lee Navigation at Waltham Abbey. June 2024
Cuyahoga Valley National ParkCuyahoga Valley National Park
This high-resolution photo shows the Eidersperrwerk, a flood protection dam located on the Eider river in Germany. The massive concrete structure stands tall against the backdrop of a clear blue sky, with the calm waters of the river flowing behind it. The Eidersperrwerk serves as a vital component of the region's flood control system, protecting the surrounding communities from the dangers of rising water levels. This photograph would be a suitable addition to any project related to civil engineering, flood prevention, or infrastructure.
The D+R (Delaware and Raritan) Canal was a major shipping channel back in the day for NJ.  Now it's just a great place to go for a walk.  This is one of the few remaining locks that would help raise and lower the barges.  You can get the feelings of control and strength from this scene
The closed floodgates of an irrigation canal with abundant water flow, in a rural area of Salamanca - Spain
Free Images: "bestof:Lock 72 on C and O Canal looking upstream from HABS.png Help 2 WALLS AND GATE AT SOUTH END OF LOCK - Chesapeake Ohio Canal Lock 72 174 4 miles above tidewater"
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