On a specialist map of medieval Dublin produced in 1978 by the Friends of Medieval Dublin, a bridge is marked at what is now Harcourt Street, in the south of the city. No physical evidence of it survives above ground, and the street itself offers no obvious clue that anything of the sort ever existed there.

The Friends of Medieval Dublin Map, published in 1978, was a scholarly effort to document the layout and infrastructure of the city as it existed during the medieval period, drawing on historical sources, documentary records, and earlier cartographic evidence. The marking of a bridge at Harcourt Street suggests that a watercourse once ran across or beneath that route, significant enough at some point to require a crossing. Dublin's medieval topography was shaped considerably by the River Poddle and its various tributaries and channels, many of which were culverted, diverted, or built over as the city expanded southward in later centuries. A bridge on such a route would have served movement between the walled city and the lands to the south, though the specific nature, date, or construction of this particular crossing is not recorded in the available notes.

Harcourt Street today is a busy thoroughfare running between St Stephen's Green and the Grand Canal, lined with Georgian terraces and occupied by offices and a Luas tram stop. There is nothing at street level to indicate the presence of a former crossing, and no signage or marker acknowledges what the 1978 map records. The most a visitor can do here is stand on the pavement with the map in mind and consider what lies beneath the tarmac, as Dublin's hidden waterways occasionally make themselves known during construction works or heavy rainfall. The Friends of Medieval Dublin Map itself is the primary reference, and consulting it alongside historical accounts of the Poddle's course adds some context to what would otherwise appear to be an entirely unremarkable urban street.