An unexpected treat yesterday. We went to Wales, to Chirk Castle, and on the way, we saw two feats of engineering in one: Chirk Aqueduct and Viaduct. Each of them has one end in England, the other in Wales. And what a sight! Completed in 1801 by William Jessop and Thomas Telford, the aqueduct is 710 foot (220 m) long and carries the canal 70 feet above the beautiful River Ceiriog across 10 circular masonry arches.
Walking along the towpath, as I did, high above the bucolic valley beneath, you can see next to it the railway viaduct opened in 1848 and designed by Scottish engineer Henry Robertson. It quite made our morning. I ventured too into the aqueduct’s tunnel – one of the first designed to have a towpath. Barges used to be manned by several men, with a horse walking up ahead on the side of the canal, attached to the barge by a rope. When the boat came to a tunnel, the horse would climb the hill and the men would lie on their backs and ‘walk’ their feet along the roof and walls of the tunnel (‘Legging it’). How grateful those men must have been to find a towpath at the disposal of their horse!
Whether you get a postcard from Chirk Castle remains to be seen. So much to do, so little time …
From Pyrenees to Pennines 
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