Sunday 15 November 2009

Pontcysyllte Aqueduct

This famous aqueduct crosses the valley of the Dee near Llangollen, carrying the canal 127 feet above the river on 18 stone pillars. It has been a feature of the landscape since 1805, when it was completed by Thomas Telford and William Jessop. The canal is carried in an iron trough 11'10" wide, 5'3" deep and 1007 feet in length.

Somehow, I'd never actually visited the aqueduct until today, when Carol took a side road off the A5 so that I could photograph a rainbow. The clouds had shifted by the time I took the shot, so I didn't get the effect I was after but, having stopped, we decided to walk across the aqueduct. The sun had come out and it was quite mild so quite a number of visitors were walking along the footway across the aqueduct.

Telford's novel approach to canal building showed what was possible and his methods were later used by the railways where cuttings, embankments, bridges and viaducts were similarly required. In fact, looking down the valley from the aqueduct, you get a good view of the viaduct built to carry the Shrewsbury - Wrexham line of the Great Western Railway.

I was also intrigued by a hydraulically-operated lifting bridge across the canal. This bridge is rather younger, built by British Waterways in 1990.

My pictures

I took a number of other pictures which are currently missing, as explained here. I'm sorry.