Most megalithic structures of this type, which were built during the late Neolithic and into the early Bronze Age, have lost stones to agriculture, road-building, or simple collapse over the millennia. This one has not, and the result is a structure that still communicates its original intention with some clarity.

Wedge tombs are the most numerous of Ireland's megalithic tomb types, characterised by a gallery that typically narrows and lowers toward the east, often interpreted as a deliberate orientation toward the setting sun in the west. The Caherdowney example follows this alignment precisely, running east to west, and its construction is legible in considerable detail. A short portico, just 0.4 metres long, marks the western entrance and is separated from the main chamber by a septal stone, a dividing slab set between two upright jambs. The main chamber itself extends roughly three metres and is formed by three stones on each side, with a backstone closing the eastern end. Three roofstones still cover the gallery, and a closely-set outer wall surrounds the whole structure. Traces of a low earthen mound remain around the monument, suggesting that the tomb was once embedded in a cairn or mound that has since largely dispersed. The site was documented by Ruaidhrí de Valera and Seán Ó Nualláin in their 1982 survey of megalithic tombs across Counties Cork, Kerry, Limerick, and Tipperary, a systematic study that placed Caherdowney within a broader regional pattern of late prehistoric burial practice.

The boggy setting is worth bearing in mind for anyone approaching on foot. The ground on the northern side of the Garrane River valley tends toward waterlogged terrain, and the monument sits within that landscape rather than rising prominently above it. Looking carefully for the outer walling and the remnant mound material, rather than focusing solely on the upright stones, gives the fullest sense of what the original structure encompassed.