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#narrowboat #widebeam #ThomasTelford #PontcysyllteAqueduct #LlangollenCanal #RiverDee #canal #llangollen #Telford #engineering

Construction was completed in 1805 by Thomas Telford.
His design replaced more than one previous design. Thomas Telford's design is of a single span of 1007 feet in length is preceded by an embankment canal of 1500 feet. The embankment was made from excavations at the Chirk Tunnel and Aqueduct sites a little further south of Pontcysyllte Aqueduct.

19 Stone piers support 18 iron sections, 126 feet above the river Dee, that are 40 feet in length and just over 12 feet wide. The sections are 2 inches thick.

The canal is 5 feet 3 inches deep in the trough. The towpath of almost 4 feet wide, has water beneath it. This allows for displacement as a narrow boat passes.

Ten years in the design and building. At 2 pm on 26 November 1805 the aqueduct was opened to traffic. A huge procession and opening ceremony of boats bedecked with flags and bunting, one boat with a brass band playing God Save the King and Rule Britannia. Two cannons in the valley below fired a sixteen shot salute and waved on by a crowd of 8000 people that included many of the iron works owners and financiers.

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