It once carried pedestrians and traffic over a modest stream that drained northward into the River Liffey, a modest piece of urban infrastructure that has since been swallowed whole by the expanding city, leaving no visible surface trace whatsoever. That complete absence is, in its own way, the most interesting thing about it.

The bridge appears on the Friends of Medieval Dublin Map, produced in 1978, which charted the surviving and recorded features of the medieval city and its immediate surroundings. That map drew together decades of antiquarian and archaeological scholarship, and the inclusion of this crossing suggests it was considered a genuine historic feature rather than a cartographic guess. It is also mentioned by Bradley and King in their catalogue of Dublin's medieval urban fabric, recorded at volume three, page 196, as entry number 175. The stream it once spanned was presumably one of the numerous small watercourses that threaded through the medieval urban landscape south of the Liffey, many of which were culverted, diverted, or simply built over as the city densified across the post-medieval centuries. Such streams were essential to daily life in earlier periods, used for water supply, waste disposal, and occasionally as boundary markers between parishes or properties.

There is nothing to see here in any conventional sense, and that is precisely the point. Visitors with an interest in Dublin's buried topography might find it worth walking the street simply to consider what lies beneath it. The east side of the street is where the bridge is recorded as having stood, though without excavation it is impossible to say whether any structural fabric survives below ground. The Friends of Medieval Dublin Map remains a useful companion document for anyone interested in tracing the city's lost features, and Bradley and King's work, though specialist in nature, is held in major Irish libraries for those who want to pursue the reference further. The stream itself, like so many of Dublin's minor watercourses, almost certainly still flows somewhere underground, finding its way to the Liffey by routes the city above has long since ceased to acknowledge.