At 5.8 metres wide, it carries three arches that are broadly semicircular, though each varies subtly in shape and span, a small irregularity that hints at the practical realities of construction rather than any grand design ambition. The stonework is dressed sandstone, with chamfered, or angled, edges on the voussoirs, the wedge-shaped stones that lock an arch together and carry its load downward into the piers.

What makes the bridge quietly legible as a piece of engineering history are the corbels still visible on its piers. These projecting stone brackets once supported the temporary wooden framework, known as centring, on which each arch was laid before the keystone was set and the structure became self-supporting. Once the mortar cured and the centring was removed, the corbels were simply left in place rather than cut away, which is not uncommon in older bridge construction but is easily overlooked by anyone crossing without stopping. On the upstream face, low pointed breakwaters extend from the piers into the current, a practical measure to divide the flow and reduce the force of water pressing against the masonry during flood conditions.