Somewhere beside the River Loobagh, to the south-west of Kilmallock in County Limerick, a bridge once stood that connected a medieval walled town to the world beyond its gates. No stone, no arch, no abutment survives above ground. The only evidence that it ever existed is a single map, drawn around the year 1600, now held in Trinity College Dublin as manuscript TCD MS 1209/62.

That map depicts Kilmallock at a moment when it was still a functioning walled town, complete with gates, streets, and the substantial Dominican Friary that still stands today, albeit in ruin. The bridge appears on the plan spanning the Loobagh, linked to the town by a road that passed through an entrance marked on the map as 'The frier's gate', a gatehouse taking its name from the friary nearby. The Dominicans had been established in Kilmallock since the thirteenth century, and the friary's proximity to this particular gate and crossing point suggests the bridge served both the religious community and the broader traffic moving in and out of the town on its south-western side. By the time the map was drawn, Kilmallock was already past its medieval peak, and within decades the town's fortunes would decline sharply under the pressures of the Nine Years' War and its aftermath.

For anyone curious enough to go looking, the area around the River Loobagh to the south-west of the Dominican Friary is the closest you can get to the crossing's probable location. The friary itself is accessible and well worth examining as a piece of surviving medieval fabric, but the bridge site offers no monument, no marker, and no trace in the landscape that has been confirmed at ground level. Its interest lies entirely in what the historical record suggests was once there, and in the gap between a carefully drawn line on a four-hundred-year-old map and the unremarkable ground beneath your feet.