It is a togher, a type of wooden trackway built across boggy or waterlogged ground, and this particular example is classified as a class 3 construction, a category that reflects its structural character and the materials used in its making. Such trackways were laid down by communities for whom the bog was not an obstacle to be avoided but a landscape to be crossed, and the waterlogged, oxygen-poor conditions of the peat have preserved organic material that would long since have rotted away on dry ground.

The Annaghbeg togher was noted during a field survey in 1988 and is referenced in Barry Raftery's 1990 work on Irish trackways, where it appears alongside many comparable sites documented as part of a wider effort to map and understand the bogroad tradition in Ireland. Raftery's research drew attention to the remarkable density of these structures across the Irish midlands, many of them dating back centuries or even millennia, representing organised effort to move people, animals, and goods through terrain that would otherwise have been impassable for much of the year. The work of the Irish Archaeological Wetland Unit, based at University College Dublin, was central to identifying and recording sites like this one before drainage, turf-cutting, or development could disturb them further.