The stream is crossed by a bridge of single span, supposed to be Roman, and by a three-arched bridge, designed by Thomas Telford and erected in 1823.
A bridge by Telford (1797) crosses the river.
The river is crossed by a bridge of seven arches which was designed by Thomas Telford in 1805 and opened in 1808.
Telford's road, raised on the lower Berwyn range side and overlooking the Dee, opens up the picturesqueness of Corwen, historically interesting from the reminiscences of Wales's last struggle for independence under Owen Glendower.
There, in 1809, he founded the sherry business of Ruskin, Telford & Domecq; Domecq being proprietor of a famous vineyard in Spain, Telford contributing the capital of the firm, and Ruskin having sole control of the business.