This handsome red and white, Norman bridge is a Scheduled Ancient Monument and is probably the oldest bridge to cross the River Stour and the oldest bridge in Dorset.

The bridge derives its name from the nearby National Trust property. It is 210ft long and, at 12ft wide, has never been widened. The largest of its eight, arched spans is 19ft 6in. The arches are nearly semi-circular, and the face stones of the arch ribs are picked out with white limestone, alternating with the red sandstone which forms the bulk of the material. Pointed breakwaters on both sides of each pier are extended upwards along the length of the bridge to provide refuges on either side of the roadway. The masonry parapet rests on a string course also picked out in paler stone, and the overall effect is both solid and striking.

There is a record that in 1341, three shillings were bequeathed for repair of the bridge. Rather more substantial renovation was carried out in 1964. We find references to the building of "A Bridge on the River Stour adjacent to the White Mill" in the year 1175. Although the bridge we see today is probably a sixteenth century structure we know, from an investigation of the foundations, that it stands on timber pilings which have themselves been carbon dated to the twelfth century.