Lesbury Mill Bridge. Survey by Peter Ryder, 1993.

Lesbury Bridge, over River Aln. Grade I. Probably 15th century altered in 19th. Squared stone, tooled-and-margined in 19th century parts. Two arches with steeply canted cutwaters between carried up as refuges; widened to east. North (river) arch segmental, south (flood) arch segmental-pointed, both triple chamfered. 19th century parapets in chamfered coping terminate in small piers with chamfered caps. Glinters at internal angles of refuges. Scheduled monument ND162. (1)

Scheduled, Northum 162. Bridge on old road from Lesbury to Warkworth. Probably the finest and perhaps one of the oldest medieval bridges left in Northumberland. Two arches, one pointed, one segmental. Large central pier. The bridge was doubled in width about 100 years ago by an extension on down river side, appearance not affected much. (2)

Lesbury Bridge, medieval. Two arches, both with double rings. Massive cutwaters on upstream side. (3)

15th century bridge. Two arches of 10m span. (4)

Lesbury Bridge, or Lesbury Mill Bridge, is constructed of square sandstone, tooled-and-margined in the 19th century and later parts. The bridge is of two arches, the northern (B) spanning the river and the southern (A) a flood course, originally the tail race of the important mill that formerly stood alongside the bridge.
Arch B is segmental and arch A segmental-pointed in form; both are triple chamfered, with plain soffits. The medieval fabric preserves a wide selection of masons' marks, especially notable on the inner face of the north abutment. The bridge was doubled in width to the east in 1844, faithfully copying the details of the medieval structure. On both faces of the bridge the boldly projecting triangular cutwater is carried up to full height, without any set-backs, as a refuge. There is a double-chamfered plinth at the foot of the central pier and the north abutment; the east face of the north abutment has been either rebuilt or re-faced in the present century. The bridge parapets, apparently of 19th century date although largely rebuilt after repeated accident damage, are protected internally by a series of curved blocks or glinters; they have a chamfered coping and terminate in small piers with chamfered caps.
There are remains of a paved invert of large roughly-squared blocks under arch B.
Little has been traced regarding the earlier history of the bridge; the surviving drawings of its widening are dated 1844. The present structure, which is probably 15th or early 16th century in date, was always associated with the mill, which stood on the adjacent site since at least the 13th century; the last mill was burned down in 1964, and only a length of its walling survives alongside the road.
Despite the apparent lack of early references, the bridge is clearly of some historical value through its presumed medieval date, although the loss of the adjacent mill detracts somewhat from its value.
It is a bridge of architectural interest through its being a medieval structure; the 19th century widening faithfully copies the details of the medieval section.
From an archaeological point of view, the bridge has suffered repeated accident damage to the parapet. In 1982 'saddling' was proposed 'in the near future', but this has never been carried out. If such works take place the archaeological interest of the bridge structure will be considerably diminished.
The association of the bridge and former mill is of significance both historically and archaeologically. (5)

A medieval multi-span bridge crossing the River Aln at the west end of Lesbury Village. Of 15th or early 16th century date and associated with an adjacent mill site which was demolished in 1964. The bridge was doubled in width in 1844 using a similar medieval style and is still in use as a main vehicle route. Scheduled. (6)

NU 2330 1156: Bridge (NR) (7a)