Thornborough Bridge is situated on the original

Bletchley Bletchley is a constituent town of Milton Keynes, Buckinghamshire, England, in the south-west of the city, split between the civil parishes in England, civil parishes of Bletchley and Fenny Stratford and West Bletchley, which In 2011 had a com ...

Buckingham Buckingham ( ) is a market town in north Buckinghamshire, England, close to the borders of Northamptonshire and Oxfordshire, which had a population of 12,890 at the United Kingdom Census 2011, 2011 Census. The town lies approximately west of ...

road, now bypassed by a modern bridge in 1974 for the

A421 The A421 is an important road for east/west journeys across south central England. Together with the A428, the A43 and A34, it forms the route from Cambridge through Milton Keynes to Oxford. The section between the A1 (near St Neots) and t ...

. The bridge is accessible to pedestrians from an adjacent lay-by. The bridge straddles the parish boundaries of Thornborough and Buckingham, where the parish boundary follows the line of Padbury Brook (also known as The Twins), a tributary of the

River Great Ouse The River Great Ouse ( ) is a river in England, the longest of several British rivers called "Ouse". From Syresham in Northamptonshire, the Great Ouse flows through Buckinghamshire, Bedfordshire, Cambridgeshire and Norfolk to drain into the ...

. Dating back to the end of the 14th century, it is the only surviving mediaeval bridge in

Buckinghamshire Buckinghamshire (, abbreviated ''Bucks'') is a Ceremonial counties of England, ceremonial county in South East England and one of the home counties. It is bordered by Northamptonshire to the north, Bedfordshire to the north-east, Hertfordshir ...

. The parish division is marked by a boundary stone in the middle of the bridge. The stone bridge measures approximately long and wide, spanning the river with six low arches . Three refuges are formed within the parapet on the south side. The bridge is

Grade I listed In the United Kingdom, a listed building is a structure of particular architectural or historic interest deserving of special protection. Such buildings are placed on one of the four statutory lists maintained by Historic England in England, Hi ...

English Heritage English Heritage (officially the English Heritage Trust) is a charity that manages over 400 historic monuments, buildings and places. These include prehistoric sites, a battlefield, medieval castles, Roman forts, historic industrial sites, Lis ...

References

External links

Bridges in Buckinghamshire Grade I listed buildings in Buckinghamshire Scheduled monuments in Buckinghamshire {{UK-bridge-struct-stub