This evening, I am posting information on the impressive example of early industrial engineering known at the Pontcysyllte Aqueduct near Llangollen in N.E. Wales.

This structure dates from 1805 and ranks as the longest and highest navigable aqueduct in Britain. It is a World Heritage Site.

Key facts and information:

  • Carries the Llangollen Canal over the Valley of the River Dee.
  • Built by leading engineer Thomas Telford and William Jessop. Telford was a prodigious builder of canals and bridges during the early industrial period.
  • The aqueduct is 1007 feet long, 11 feet wide and 5.25 feet deep.
  • Comprises a cast iron trough supported by 19 hollow masonry piers at height of 126 feet above the river.
  • Still in operation today. Short distance ( 45 mins) pleasure trips are available for visitors wishing to cross the aqueduct by boat.



View from the aqueduct.440

Masonry piers.


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