Whatever purpose that crossing served, it leads nowhere obvious today, which gives the whole structure an quietly unresolved quality that sets it apart from more straightforward examples of its type.

A rath, as ringforts of this kind are commonly known, was a circular or oval enclosure used as a farmstead during the early medieval period in Ireland, roughly between the fifth and twelfth centuries. The enclosing bank and its accompanying external ditch, called a fosse, provided a degree of security for a family and their livestock. The example at Oldabbey sits on a gently north-east-facing slope and measures approximately 29 metres north to south and 23.7 metres east to west, making it a modest but reasonably complete specimen. Its bank survives to an internal height of around one metre and an external height of about 1.5 metres, with the most intact section running along the west-south-west. Notably, the inner face of the bank retains traces of stone-facing, suggesting that some care was taken in its original construction beyond simply piling up earth. The fosse, measuring 1.6 metres wide and 0.7 metres deep, runs from the east around to the north-west, where a later field boundary has cut across and truncated both the enclosing bank and the ditch. The site was recorded by Denis Power and uploaded to the national record in August 2011.

The interior is level and lies under pasture, so there is nothing visually dramatic to encounter once inside the enclosure. The best-preserved section of the bank at the west-south-west is worth examining closely, where the remnant stone-facing on the inner surface is most legible. The field boundary that clips the northern arc is a useful reminder of how routinely these structures have been eroded by ordinary agricultural activity over centuries. Access will depend on local landowner permission, as the site sits in working farmland.