It is one of a number of such proposed fixed sea links across Ireland and Britain.OverviewThe Irish Sea Bridge, sometimes called the Celtic Crossing by the media, is a hypothetical rail and road bridge that would span the and connect the island of to the island of. It is one of a numbe. The idea for a Scotland to Northern Ireland Bridge, sometimes branded in the press as the "Celtic Crossing" or "Irish Sea Bridge", was revived in January 2018 by Professor Alan Dunlop of the. He propose. So far the project has at various times received support from senior politicians in both the UK and in Ireland, and across a number of political parties. The project has also received support from newspapers, periodicals.