A separate structure, classified as a class 3 togher, was found at the base of a drain in the same bogland, its timbers running east to west and only partially revealed during investigation. That orientation matters: togher builders, who constructed these wooden causeways across waterlogged ground to allow people, animals, and goods to cross otherwise impassable terrain, often aligned their roads to connect specific points on drier land, and an east-west axis here suggests a deliberate route through the landscape rather than a short local crossing.

The detail about the drain is telling. Much of what archaeologists know about Irish bog roads has come to light not through planned excavation but through the routine cutting of drainage channels across midland bogs, which can slice unexpectedly through preserved wood that has lain undisturbed for centuries or even millennia. The anaerobic, acidic conditions of a raised bog are unusually effective at preserving organic material, which is why ancient timber survives where it would rot almost anywhere else. This togher came to attention in exactly that way, its presence confirmed by investigation after the drain exposed it. The information was recorded by B. Raftery, the late Professor Barry Raftery of University College Dublin, who was Ireland's foremost authority on Iron Age archaeology and a central figure in the study of ancient Irish roadways, including the major Corlea excavations of the late 1980s.