This is a togher, a type of timber trackway laid across wet or boggy terrain, constructed from planks and roundwoods arranged to distribute weight and provide a passable surface. The Inchirourke example runs on a north-east to south-west orientation, measures 1.34 metres in width and just 0.08 metres in depth, and has survived because the waterlogged, oxygen-poor conditions of the bog are, paradoxically, among the best preserving environments in the world for organic material.

The togher was found in 1995 by the Irish Archaeological Wetland Unit, based at University College Dublin, during a pilot survey of the area known as Littleton Works. Bog surveys of this kind are painstaking exercises, conducted against the background of ongoing industrial peat extraction, which has over the decades exposed and sometimes destroyed significant archaeological material across the Irish midlands. The Littleton Works survey was part of broader efforts to identify and record such features before they were lost. Tóghar is the Irish word from which the anglicised "togher" derives, and these trackways range considerably in age and sophistication, from Bronze Age constructions to early medieval ones, some spanning considerable distances across otherwise impassable terrain. The Inchirourke example's precise date has not been established from the available information, but its classification as a class 1 togher refers to a formal typological category used to describe such timber road structures in Irish wetland archaeology.