Trinity Bridge, Crowland
Grade I listed bridge in Lincolnshire, England

Trinity Bridge or the Triangular Bridge is a unique three-way stone arch bridge that stands at the heart of Crowland, Lincolnshire, England. While it once spanned the divergence of the River Welland and a distributary, the rivers have been re-routed, and it now spans nothing significant.
At Crowland the Welland used to split into two channels, one broadly following the present course of the river, and the other joining the Old South Eau to reach the River Nene near Wisbech. The river no longer flows through Crowland, but the triangular bridge, which spanned the junction, remains in the centre of the town.
History
The current bridge dates to the 14th century (built between 1360 and 1390) and replaced previous wooden bridges. The earliest known mention of the bridge is by King Æthelbald of Mercia in 716. It was mentioned in a (spurious) 943 charter of Eadred. The bridge is now a scheduled monument and Grade I listed.
The bridge is predominantly built from Barnack stone, which was quarried at Barnack about 10 miles to the west of Crowland, and presumably transported by boat on the Welland.
This bridge has three stairways that converge at the top.
The public source identifies “Trinity Bridge, Crowland” as grade I listed bridge in Lincolnshire, England. This brief keeps that definition visible, then builds a research path around Trinity, Bridge and Crowland.
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A short description can identify a subject without explaining its stakes. For “Trinity Bridge, Crowland”, the useful work is to connect “grade I listed bridge in Lincolnshire, England” to the records capable of establishing context and consequence.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Dec 12, 2025. The linked authority identifier is Q1130043. The first chronological checks are 1360 and 1390.
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This entry incorporates text from “Trinity Bridge, Crowland” 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.