Road - class 2 togher, Ballykilleen, Co. Offaly
Beneath the bogland of Ballykilleen in County Offaly, a road lies waiting.
Not a road in any modern sense, but a togher, an ancient timber trackway built across waterlogged ground to allow passage where the earth itself would otherwise swallow a traveller whole. This particular example, just under twenty metres long and roughly three and a half metres wide, is classified as a class 2 togher, meaning it was constructed from a mixture of materials laid in a deliberate, layered fashion rather than from a single uniform type of timber or plank.
The structure runs on a north-north-west to south-south-east orientation and was built with a notable asymmetry. On its eastern side, the timber elements are stacked up to nine pieces deep, while the western side is considerably thinner, running to only two or four pieces. The builders used a combination of brushwood, roundwood poles, split timbers, and pegs, with the heavier structural elements concentrated toward the upper portion of the trackway. Four partially surviving pegs, driven into the ground at angles of sixty to eighty degrees, helped anchor the structure below the eastern half. What makes this togher particularly telling, from an archaeological perspective, is the evidence of deliberate woodworking. The timbers were predominantly split along the radius of the wood grain, a technique that produces flat, stable planking. One peg carries a metal-cut chisel point, suggesting the use of an iron tool and placing the construction, in all likelihood, somewhere within the historic period rather than prehistory. The whole structure is preserved within Sphagnum peat, the slow-growing, highly acidic bog moss that creates the anaerobic conditions responsible for keeping organic material intact across centuries.
The southern end of the trackway, where it approaches the field surface, is composed of dense brushwood and planks, and sits measurably lower than the northern section, reflecting either subsidence or the natural variation in the bog surface over which it was originally laid. It is the kind of detail that archaeologists work carefully to document, because tоghers like this one are rarely visible above ground and survive only where the peat has remained largely undisturbed.