Its voussoirs, the wedge-shaped stones that form the arch, protrude at irregular intervals beyond the face of the bridge rather than sitting flush, giving the stonework a rough, almost improvised appearance. The arch itself is segmental, meaning it describes a shallower curve than a semicircle, and spans just over eleven metres. The whole structure runs on a northwest to southeast axis, with the parapet walls splaying outwards at each end to accommodate the road as it widens beyond the crossing.

The bridge is slightly humpbacked, and its abutments, the solid masonry supports at either bank, are built from coursed roughly dressed stone and are battered, meaning they angle inward as they rise, a technique that lends stability against the pressure of water and earth. What makes the structure quietly puzzling is its apparent absence from the 1846 Ordnance Survey six-inch map, the extraordinarily detailed survey that recorded roads, field boundaries, and even individual buildings across Ireland in the mid-nineteenth century. If the bridge was there in 1846 and was simply missed, that would be unusual given the survey's thoroughness. If it was built after that date, it belongs to a period of considerable rural infrastructure work in Kerry, though no specific date of construction is recorded. Either way, the gap between what the map shows and what stands on the ground is the most intriguing thing about it.