It is a togher, the Irish term for a bog road or trackway, built by laying timber across soft, waterlogged ground to allow people and animals to pass without sinking. This particular example was not a grand engineering project. It measured just 3.2 metres in length and 2.5 metres across, built from short lengths of brushwood, irregularly placed, each branch averaging about five centimetres in diameter. Thin, improvised, and not especially tidy, it reads less like civic infrastructure and more like someone's practical solution to a recurring problem with a wet patch of ground.

When archaeologists noted the togher in 1988, it was already in poor condition, which is perhaps unsurprising given what followed its construction. Radiocarbon dating placed the brushwood in the period between roughly 1013 and 834 BC, during the Late Bronze Age, a time when Ireland's boglands were being crossed and worked by communities who left behind an extraordinary range of wooden structures, weapons, and artefacts, most of them only preserved because the anaerobic, acidic conditions of peat suppress the usual processes of decay. The Derryoghil togher falls into what is classified as a class 3 togher, a category denoting simpler, less elaborate construction compared to the great plank roads or more formally engineered trackways found elsewhere in the Irish midlands. It was documented as part of a broader effort to record the wetland archaeology of Ireland before drainage, peat extraction, and land improvement removed it entirely from the record.