Road - class 3 togher, Derrindiff, Co. Longford
Co. Longford |
Roads & Tracks
Beneath the bogland of Derrindiff in County Longford, a narrow road lies preserved in the waterlogged peat, built not from stone or tarmac but from carefully laid timber.
It is three quarters of a metre wide and barely twenty centimetres deep, modest enough to overlook entirely, yet its survival across centuries or possibly millennia is precisely what makes it remarkable.
The structure is a togher, an Irish word for a trackway built across wet or boggy ground by laying timber directly onto the surface of the marsh. This example is classed as a class 3 togher, meaning it was constructed from two compact layers of longitudinal roundwood, the smaller branches and stems of ash and hazel, each averaging around nine centimetres in diameter. The choice of ash and hazel was practical: both are fast-growing, flexible, and produce straight stems well suited to being cut and laid flat. The roundwoods run lengthways along the north to south orientation of the track, and at least eight individual pieces were visible when the site was examined. The layering and compactness of the construction suggest a deliberate, considered approach to crossing what would have been difficult, yielding ground, allowing people or livestock to move through terrain that would otherwise have been impassable.