What looks, at first glance, like a row of weathered stakes driven into the riverbed is in fact the skeleton of a fish weir, and a particularly interesting one at that: it is not alone. Just 60 metres to the northwest lies a second, near-identical structure, the two running roughly parallel to one another in a stretch of tidal mudflat that once formed one of the quieter margins of the lower Maigue.

Archaeologist Aidan O'Sullivan, writing in 2001, recorded this weir as a post alignment oriented northeast to southwest and running for approximately 80 metres. The posts themselves are relatively slender, ranging from five to nine centimetres in diameter, and are spaced at intervals of roughly two metres. O'Sullivan identified the structure as probably a stake-net weir of nineteenth-century date. A stake-net weir works by driving a series of posts into the riverbed or estuary floor and suspending netting between them; fish moving with the tidal flow are guided into the net and held as the water recedes. It is a technique with a long history in Irish estuaries, though physical evidence of it is comparatively rare, largely because the timber stakes that survive in waterlogged, anaerobic mud would decay quickly if exposed to air. The presence of two such weirs in close proximity along the same bank suggests this stretch of the Maigue was a productive and deliberately managed fishing ground, though the record does not identify who operated them or what species they principally targeted.

The weir sits in estuarine clays on the western bank of the Maigue, a river that drains much of County Limerick before meeting the Shannon estuary near Askeaton. Access to the foreshore in this area requires some care; the tidal mudflats can be soft and the structure itself is only visible at low water. Anyone hoping to see the post alignment should consult tide tables in advance and approach the bank cautiously. The posts are unlikely to project dramatically above the surface, so patience and a low angle of view help when trying to pick them out against the clay. The companion weir to the northwest, recorded separately in the Sites and Monuments Record, is worth locating for comparison, as the two together give a clearer sense of the deliberate organisation of this small stretch of river.