The south-western arch, spanning roughly 3.5 metres, sits dry, which suggests either that the river has shifted its course over time or that the original builders were working to a width that anticipated more flow than now passes beneath it. The bridge runs on a north-east to south-west alignment and is built from random rubble sandstone, the kind of construction that uses irregularly shaped local stone rather than precisely cut ashlar blocks, giving the whole structure a pleasingly rough-hewn quality.

The bridge has four semicircular arches, with the two central spans each reaching approximately five metres, making them noticeably wider than the outer two. The arches are formed with voussoirs, the wedge-shaped stones that lock together to carry the load across an opening, some of which project slightly beyond the line of the arch face in a way that is not purely decorative but does give the structure an uneven, almost hand-made texture. What lifts the bridge slightly above the purely functional is the low rounded cutwater on the upstream face of the central pier, which includes an ornamental moulding. Cutwaters are projections built onto a pier to deflect the force of moving water, and the pointed cutwater on the north-east pier serves that purpose in a more straightforwardly practical form. Later intervention is visible throughout: the arches have been underpinned with concrete, and the parapets now carry concrete coping. The river-bed beneath the arches has been paved, and that paving extends beyond the downstream edge of the bridge, an arrangement that helps prevent erosion of the bed where water accelerates as it leaves the shelter of the structure.