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The Pontcysyllte Aqueduct (Welsh pronunciation: [ˌpɔntkəˈsəɬtɛ]; Welsh: Traphont Ddŵr Pontcysyllte) is a navigable aqueduct that carries the Llangollen Canal across the River Dee in the Vale of Llangollen in northeast Wales.
Pont Cysyllte, or Cysylltau Bridge Aerial view of Pont Cysyllte. Pont Cysyllte, [1] [2] also known as Cysylltau Bridge [1] [2] or Bont Bridge, [3] is a 17th-century road bridge crossing the River Dee near the village of Trevor, Wrexham County Borough, Wales.
A notable feature of the canal is the Pontcysyllte Aqueduct, built by Thomas Telford. Opened in 1805, the aqueduct is more than 300 metres (980 ft) long and 38 metres (125 ft) above the valley floor. It has 19 stone arches, each with a 45-foot (14 metre) span.
Palmerston Street Aqueduct: Pontcysyllte Aqueduct: Llangollen Canal: Thomas Telford: A cast iron trough 1,007 feet long supported 126 feet above the river by 19 masonry piers. Crosses the River Dee. Unesco World Heritage site. Pontcysyllte Aqueduct, Wales
The masonry walls hide the cast iron interior. The aqueduct followed Telford's innovative Longdon-on-Tern Aqueduct on the Shrewsbury Canal, and was a forerunner of the Pontcysyllte Aqueduct, also on the Llangollen Canal. [3] The aqueduct was briefly the tallest navigable one ever built, and it now is Grade II* listed in both England and Wales.
Pontcysyllte aqueduct, known as "the stream in the sky" is part of a Unesco world heritage site [Reuters] While Telford's aqueduct took 10 years to design and build before being finished in 1805 ...
The AONB extends over part of the Pontcysyllte Aqueduct and Canal UNESCO World Heritage Site (WHS), designated on 27 June 2009, before the AONB's extension to the area. The WHS includes sites within the AONB such as Pontcysyllte Aqueduct, Horseshoe Falls, and parts of the Llangollen Canal.
The aqueduct was built to carry the Ellesmere Canal over the Dee Valley. Completed during the Industrial Revolution and designed by Scottish Engineer Thomas Telford, the aqueduct made innovative use of cast and wrought iron, influencing civil engineering across the world. [17] [18] The heritage site extends into Shropshire in England. [19]