It is a togher, a type of timber trackway laid across wet or marshy ground to allow passage where the land would otherwise swallow a traveller whole. Ireland's bogs have preserved hundreds of these structures, some dating back thousands of years, their waterlogged timbers surviving far longer than anything left exposed to air. This particular example is classed as a class 3 togher, a category that reflects a specific method of construction, typically involving split or round timbers laid transversely across the bog surface.

The Annaghbeg togher was noted during a field survey in 1988 and recorded as running on a northeast to southwest orientation. The reference citation is Raftery 1990, placing it within the broader scholarly work on Irish trackways carried out in that period, much of it coordinated through the Irish Archaeological Wetland Unit at University College Dublin. Barry Raftery, the archaeologist most associated with this field of research, spent decades cataloguing and interpreting these bog roads, recognising them not merely as curiosities but as evidence of organised movement, land use, and social infrastructure in prehistoric and early historic Ireland. A togher of this kind speaks quietly to the fact that people needed to cross this ground regularly enough to make the considerable effort of construction worthwhile.