It forms the main link from the southern and northern ends of the Mawddach Estuary and the Cambrian Coast railway. It is also the end (or starting) point of The Mawddach Trail footpath which runs the old line from Dolgellau. Tolls used to be collected at the Barmouth side, but this ended in 2013.
The Barmouth side of the bridge originally contained a drawbridge to allow tall boats to pass, but that was later replaced by a swing section.

Barmouth Bridge Ticket

Barmouth Bridge Ticket

Barmouth Bridge Ticket