Peterborough Lift Lock
this picture is dedicated to Diane, Linda & Paul :-)
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July 30th, Peterborough, ON, Canada
Opened in 1904 with a lift of 18.8 meters, this is the highest hydraulic lift lock in the world and the first one of two built in North America, both on the Trent-Severn Waterway. It operates on a balace principle. A constant water pressure supports each ram trough connecting pipes below ground. When extra water is let into the upper chamber, a connecting valve is opened and the heavier chamber automatically descends, forcing up the lower chamber to start a new cycle.
other view:
Peterborough Lift Lock
Sandra Scherm
Comments
3
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| Section | Travel: Ontario |
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Manfred Fiedler 28/08/2007 14:15
Klasse in Szene gesetzt!Manni
Perry Blevins 23/08/2007 22:16
Nice composition and sharp.Regards,
Perry
Lentes Michael 08/08/2007 13:14
Very fine foto, Sandra.Welcome, Mikel