Poncysyllte Aqueduct World Heritage Site

Pontcysyllte Aqueduct was granted World Heritage Status in June 2009.

Built by Thomas Telford between 1795 and 1805, the aqueduct is regarded as one of Telford's greatest achievements incorporating a cast iron trough on top of 18 stone piers which carries the canal 126 feet above the river.

At over 1000 feet long, Pontcysyllte is the longest and highest cast-iron aqueduct in the world.