Spanning a tributary of the River Martin on a causeway built across the ravine, it measures just over thirteen and a half metres in width and carries its load on three tall semicircular arches. The pointed breakwaters projecting from the piers, designed to deflect the force of the current and prevent debris from battering the stonework, give the bridge a purposeful, almost angular quality that sets it apart from more modest rural crossings.

Semiircular arches and pointed breakwaters of this kind are characteristic of pre-modern bridge construction in Ireland, a tradition that favoured robust masonry capable of withstanding seasonal flood surges. The choice to run the road across a causeway rather than simply bridging the narrowest point of the stream suggests that the ravine presented a broader engineering challenge, requiring an embankment on either side to bring the roadway up to a workable level. The River Martin drains a stretch of mid-Cork before joining the Lee system, and its tributaries have carved the kind of steep-sided valleys that made road-building genuinely difficult in earlier centuries.