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Bingley Five Rise Locks on the Leeds and Liverpool canal raise the waterway 60 feet. They were built in 1774.
Aerial view of Waterway Locks
Mammoth Spring SP - Dam & Pool - 1998. Scanned from Kodachrome 64 slide.
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.
The C and O Canal Trail At Lock 69 with Water Spilling out of the Dam Surrounded by Forest
old dam
The small old canal to Cuyahoga river at the forest at Cuyahoga Valley National Park, Ohio, USA.
St. Catharines, Canada.
the water is beginning to dry up as the Northern Territory transitions from the wet to the dry season
Canal near James River in Virginia
Looking down the historic I and M Canal at Lock 14 in LaSalle, Illinois.
Lithuanian shaft on the brook in Lithuanian Park in autumn in Kaliningrad, Russia.
Cuyahoga Valley National ParkCuyahoga Valley National Park
Aerial shot of power plant and industrial buildings on the bank of the Allegheny River in Springdale, a town 18 miles north of Pittsburgh in Allegheny County, Pennsylvania on a Fall day.
C&O Channel
Buttermilk Falls State Park near Ithaca
The historic Channahon Lock Number 7 on the I & M canal in morthern Illinois.
Aerial View of Lift Lock
Roaring River State Park, Missouri USA July 2, 2005: The spillway at Roaring River State Park near Cassville, Missouri funnels cold spring water into Roaring River, one of Missouri's cold water state parks that are stocked with rainbow trout.
One of the canal locks  on the grounds of Chesapeake and Ohio Canal National Historical Park in Maryland n the winter of 2009.
Mammoth Spring SP - Dam - 1998. Scanned from Kodachrome 64 slide.
Finistere, France - September 30, 2015: This is the River Aulne, a canalised river which is part of the Nantes-Brest canal in a rural area of inland Finistere, Brittany, France. It is a warm sunny day in late summer / early autumn, September. There are lock gates. There are upturned boats in the foreground. There is a family fishing and sitting on the lock.
River cruise boat entering Lock and Dam 22 on Mississippi river
A lock on a canal diverting water from the natural flow of the Mississippi River to the east  to overcome the annual variances in water depth on the river in order to maintain the shipping trade in the central United States.  This aerial view is just outside of St. Louis, Missouri on the Illinois side of the river.
Metal bridge over the river
Lithuanian shaft on the brook in Lithuanian Park in autumn in Kaliningrad, Russia.
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.
Fall Color Foliage Hits Cuyahoga Valley National Park
A view of the Delaware and Raritan State Park in Bound Brook, New Jersey.
Rideau Canal locks  on river, , a UNESCO World Heritage Site, summer evening, Ottawa, Ontario, Canada . Bridge and Gatineau, Quebec in background.
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