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Scherm Sandra


Free Member, Fuerth & Regensburg

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:

Comments 3

  • Manfred Fiedler 08/28/2007 14:15

    Klasse in Szene gesetzt!
    Manni
  • Perry Blevins 08/23/2007 22:16

    Nice composition and sharp.
    Regards,
    Perry
  • Lentes Michael 08/08/2007 13:14

    Very fine foto, Sandra.

    Welcome, Mikel