Irish Sea Bridge
rail and road bridge that is under proposal by the UK government, that would span the Irish Sea
The Irish Sea Bridge, sometimes called the Celtic Crossing by the media, is a hypothetical rail and road bridge that would span the Irish Sea and connect the island of Ireland to the island of Great Britain. It is one of a number of such proposed fixed sea links across Ireland and Britain. The bridge's length would depend upon the route taken; one such route, known as the Galloway route, would cross the North Channel, close to that taken by an existing ferry service, between Portpatrick in Dumfries and Galloway, and Larne in County Antrim, Northern Ireland, a distance of 45 kilometres (28 mi).
The concept of an Irish Sea Bridge had been proposed many times since the Victorian Era. In 2018 Professor Alan Dunlop at the University of Liverpool revived the idea. By February 2020, British government officials began scoping the possible route and type of crossing. Particular risks to such a project include the depth of North Channel and the presence of a large underwater munitions dump at Beaufort's Dyke. It was suggested that these problems would be mitigated in part by the construction of a tunnelled section.
A full feasibility study was published in November 2021. It estimated that a bridge would cost £335 billion, and a tunnel £209 billion.
“Irish Sea Bridge” enters the record as rail and road bridge that is under proposal by the UK government, that would span the Irish Sea. Crown Archives preserves that source wording while asking what Irish, Bridge and rail can confirm, complicate or overturn.
Why this record matters
“Irish Sea Bridge” is worth following because a concise public description often conceals a longer documentary argument. Here, Irish, Bridge and rail provides the most credible route into that argument.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Aug 26, 2026. The linked authority identifier is Q85770000. Authority coordinates are 53.000, -5.000. None of the 1 selected statements returned an explicit reference. The first chronological checks are 2018, 2020 and 2021.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Irish Sea Bridge”, its source revision and the description used here.
- Expand the search: follow Irish Sea Bridge primary sources, Irish Sea Bridge archive and Irish research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Irish Sea Bridge”?
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- What physical evidence or contemporary plan supports the description?
Search terms from this dossier
This entry incorporates text from “Irish Sea Bridge” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.