Since 2007, the government had proposed a third crossing of the Menai Strait to address congestion on the two existing crossings: the Menai Suspension Bridge (1819) and the Britannia Bridge (1846).

In 2019, Fhecor conducted a study of alternatives to divert the A55, with proposals including arch bridges and frame structures.

However, on 14 February 2023, the Welsh Government announced that the project would not go ahead, citing efforts to reduce car usage, and its environmental impact.

Issues with financing the project was later stated by the government as another reason why the project could not proceed.Lee Waters, deputy minister for climate change, later stated the crossing could be considered again as part of a wider review into the infrastructure of North Wales, rather than individually.