Above it, or rather above where a crossing once stood, there is nothing to see at all. St. Nicholas' Bridge has left no trace above ground, and yet its absence is, in its own quiet way, worth remarking upon. It once carried people across the Poddle immediately outside St. Nicholas' Gate, one of the medieval entrances through the city walls, and its disappearance is a reminder of how thoroughly the infrastructure of early Dublin has been swallowed by later centuries of building.

The bridge is recorded in Bradley and King's 1987 work on Dublin's medieval topography, which places it at reference point 38 in their survey, directly outside St. Nicholas' Gate. St. Nicholas' Gate was one of the principal gates of the walled medieval city, and a bridge at this location would have been a practical necessity, allowing those entering or leaving the city from the south to cross the Poddle, a tributary of the Liffey that once ran openly through this part of the city. The site also appears on Clarke's map of Dublin, referenced in the FMD map series of 1978. That cartographic evidence, alongside the documentary record, is essentially all that survives. The work of identifying and cataloguing this entry was carried out by Geraldine Stout, with the record uploaded in August 2012.

There is nothing to visit here in any conventional sense. The Poddle itself is culverted along most of its course through the city, running beneath roads and buildings, occasionally audible through grates. The area outside where St. Nicholas' Gate once stood falls within the dense streetscape of Dublin's south city, and without specialist knowledge of the medieval street plan, the location of the bridge is not something a passer-by would identify. For those interested in the layered archaeology of the city, the value is less in the place itself than in the exercise of imagining what is no longer legible, a gate, a river crossing, a moment of arrival or departure, all compressed into a pavement with no plaque and no obvious marker.