' The White Knight was a title held by a branch of the Fitzgerald family, powerful lords whose territory lay to the east of Kilmallock, and the road leading to it passed through a gatehouse marked on the same map as 'The water Porte,' or Water Gate, at the northern end of what is now Wolfe Tone Street. The bridge, then, was not incidental to the town. It was the eastern gateway, the point where the walled medieval settlement of Kilmallock reached out across the water and into the wider countryside beyond.

What stands at Deebert today is a four-arch humpback road bridge with an additional overflow arch, its rubble limestone walls dressed on the east and west faces, with cut limestone voussoirs forming the segmental-headed arches. Voussoirs are the wedge-shaped stones that lock an arch together, and here they are carefully cut rather than roughly laid, suggesting considered craftsmanship across successive building campaigns. The National Inventory of Architectural Heritage dates the bridge as built around 1800, but records fabric, meaning original stonework still in place, from the thirteenth, fourteenth, and fifteenth centuries. V-shaped cutwaters project from the east elevation; these are the pointed piers that divide the current and reduce pressure on the structure during high water. The bridge has been repaired and added to over roughly six centuries, each phase leaving its material trace in the same limestone.

The bridge sits near Deebert, a short distance from Kilmallock town itself, which retains substantial sections of its medieval walls, a collegiate church, and a Dominican friary. The River Loobagh is modest in scale, and the bridge reads best from the riverbank rather than from the road above it, where the full profile of the arches and the slight hump of the carriageway become visible. The east elevation, with its cutwaters and dressed limestone, is the more detailed face. Kilmallock is reasonably well signposted from the N73, and the broader medieval landscape of the town repays a slow walk; the bridge at Deebert sits quietly at one edge of that landscape, carrying the same road it has carried, in one form or another, since the thirteenth century.