Hi Folks, I'm new here
People used to be able to walk/wade across The Dee, the father one of my friends used to cross from Flint to Neston at Neap Tides about in the 1950s - but he had to wear waders.
To do this you had to be very familiar with the river because the navigable channel could shift by 25 feet after each high tide. There were also quicksands and deep mud to contend with as well as very cold water from Bala Lake.
These days you don't get the very low water levels in the river because of the linking of the Bala area reservoirs and legal requirements for minimum flow rates in the river.
Also, during the last couple of years they have been using a suction dredger to maintain a channel for the barges taking A380 wings from the Airbus site at Broughton down to Mostyn Port, so the river channel is deeper.
I like the idea of a another bridge, but the Dee Estuary is a RAMSDAR protected wildlife habitat and there are five Sites of Special Scientific Interest alongside the estuary so it would be very expensive to build one in that area even if planning permission could be obtained.
I think the only option would be to build a submerged tunnel like they did for the A55 at Conway. It might be possible to get EU funding for this as an improvement of the strategic European trans-national route from Ireland - bearing in mind the problems of widening the A55.