Boat lift

This article is about machines transporting boats between different bodies of water. For shipyard device to replace a dry dock, or Boat Lifts for pleasure craft storage, see Ship lift. For other uses, see Boat lift (disambiguation).
Strépy-Thieu boat lift (Belgium, Wallonia)
The Falkirk Wheel (Scotland)
Peterborough Lift Lock (Canada)

A boat lift, ship lift, or lift lock is a machine for transporting boats between water at two different elevations, and is an alternative to the canal lock and the canal inclined plane.

It may be either vertically moving, like the ship lifts in Germany, Belgium, the lift at "Les Fontinettes" in France or the Anderton boat lift in England, or rotational, like the Falkirk Wheel in Scotland.

History

The first known boat lift was a 2.5 ton tub boat lift on the Churprinz mining canal in Halsbrücke near Dresden. It lifted boats 7 metres without the use of caissons. The lift operated between 1789 and 1868.[1] For a period of time after the opening of the Churprinz lift boat lifts were of an experimental nature with the engineer James Green reporting that 5 had been built between 1796 and 1830. He credited the invention to Dr James Anderson of Edinburgh.[2] Erasmus Darwin's Commonplace Book dated 1777–1778 includes a design for a canal lift based on balanced water filled caissons on page 58-59[3]

An example of these early lifts was the one constructed at Mells on the Dorset and Somerset Canal.[2] Lifts on the tub boat section of the Grand Western Canal entered into operation in 1835 becoming the first non experimental boat lifts in Britain.[4]

1904 the Peterborough Lift Lock designed by Richard Birdsall Rogers opened in Canada. The lift system is operated by gravity alone, with the upper bay of the two bay system loaded with an additional 30 cm of water as to give it greater weight.

The world's still highest boat lift, with a 73.15 metre height difference and European Class IV (1350 tonne) capacity, is the Strépy-Thieu boat lift in Belgium.

As projected, the new ship lift at the Three Gorges Dam will be even higher and able to lift vessels of up to 3,000 tons displacement.[5] However, as yet engineers have been unable to design a mechanism with the lifting power called for in the lift specifications. The boat lift at Longtan is reported to be even higher in total with a maximum vertical lift of 179m in two stages when completed.[6]

Selected lift locks

Notable lift locks — ordered by size
Name Location Opened Displacement Dimensions Vertical lift Cycle time
Three Gorges dam ship lift China 2015 (anticipated) 3000 tons 280 x 35 x 5 metres 113 metres 30–40 minutes (under construction)
Henrichenburg boat lift Germany 1962 90 x 12 x 3 metres 14 metres
Krasnoyarsk Dam ship lift Russia 1982 1500 tons 90 x 18 x 2.2 metres 104 metres 90 minutes
Ronquières inclined plane lift Belgium 1968 1350 tons 91 x 12 x 3.7 metres 68 metres 22 minutes [7]
Strépy-Thieu boat lift Belgium 2002 1350 tons 112 x 12 metres x 3.35 metres 73.15 metres 7 minutes
Scharnebeck twin ship lift Germany 1974 1350 tons 105.4 x 15.8 x 3.4 metres 38 metres 3 minutes
Niederfinow boat lift Germany 1934 85 x 12 x 2.5 metres 36 metres 20 minutes
Peterborough lift lock Canada 1904 1300 tons 42.7 x 10.1 x 2.1 metres 19.8 metres 10 minutes
Kirkfield Lift Lock Canada 1907 1300 tons 42.7 x 10.1 x 2.1 metres 14.9 metres 10 minutes
Rothensee boat lift Germany 1938 1000 tons 85 x 12.2 x ? metres 16 metres 20 minutes
Falkirk Wheel UK 2002 600 tons 21.33 x 6.0 x 1.37 metres 24 metres 4 minutes
Henrichenburg boat lift Germany 1962 600 tons 67 x 8.2 x 2 metres 14 metres 25 minutes
Danjiangkou Dam China ? 450 tons
Geheyan Dam ship lift China 1987 300 tons
Longtan Dam ship lift China 2009? 250 tons 40 x 10.8 x 1.8 metres 68.5 metres claimed to be the "fastest ship-lift in the world"
Canal du Centre boat lifts Belgium 1888–1917 360 tons/350 tons 40.1 x 5.06 x 2 metres various three lifts each 16.93 m high plus one 15.4 m high
Fontinettes boat lift France 1881–88 300 tons 39 x 5.2 x 2 metres 13.13 metres 5 minutes
Anderton boat lift UK 1875 250 tons 22.9 x 4.7 x 2.9 metres 15.25 metres

See also

References

  1. ↑ Charles Hadfield World Canals: Inland Navigation Past and Present Page 71 ISBN 0-7153-8555-0
  2. 1 2 The Canals of Southwest England Charles Hadfield Page 104 ISBN 0-7153-8645-X
  3. ↑ revolutionaryplayers.org.uk
  4. ↑ The Canals of Southwest England Charles Hadfield Page 109 ISBN 0-7153-8645-X
  5. ↑ "Three Gorges Dam". Missouri Chapter Of The American Fisheries Society. April 2002. Retrieved 2008-03-11. Ship lift will be a one-stage vertical lift capable of carrying a 3,000-ton passenger or cargo vessel.
  6. ↑ "Long Tan Hydroelectric Dam". 2007. Retrieved 2010-05-20.
  7. ↑ http://services-techniques.met.wallonie.be/en/waterways/the_inclined_plane_of_ron/

Further reading

External links

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