Thornborough Bridge
# Thornborough Bridge

Thornborough Bridge is located on the original Bletchley and Buckingham road, now bypassed by a modern bridge in 1974 for the A421. The bridge is accessible to walkers from an adjacent lay-by.

The bridge straddles the parish boundaries of Thornborough and Buckingham (the parish boundary follows the line of Padbury Brook or The Twins, a tributary of the River Great Ouse), and dates from the end of the 14th century and is the only surviving mediaeval bridge in Buckinghamshire. The parish division is marked by a boundary stone in the middle of the bridge.

The stone bridge is around 30 m (98 ft) long and 4 m (13 ft) wide, and spans the river by six low arches, with three refuges formed within the parapet on the south side.

The bridge is Grade I listed by English Heritage.

