Designed by Stephen Ballard in 1843 to take a minor (no through) road over the Hereford to Gloucester Canal. If you want to go and see it you could stay with his great-grand-daughter at Old Country House. That's how I was introduced to this remarkable bridge.

On the A470, on the southern exit from Llanelltyd, the bridge crosses Afon Mawddach. It has been bypassed by a modern bridge which will surely be gone long before this one. It is a scheduled monument dated to the second quarter of the 18th Century.