These structures, sometimes called trackways or bog roads, are among the more quietly remarkable survivals in the Irish archaeological record. They were not built for permanence in any conventional sense; they were pragmatic responses to a sodden landscape, and yet the very conditions that made them necessary, the waterlogged, oxygen-poor environment of a raised bog, are also what preserved them across centuries or even millennia.

Toghers are classified by their construction method, and a class 1 togher is typically composed of split or round timbers laid transversely across a foundation of brushwood or peat, forming a corduroy-like surface. They appear throughout Ireland wherever bogland interrupted the routes between settlements, fields, and resources. The example at Garryduff represents this tradition in the west of Ireland, where extensive boglands have long shaped movement across the landscape. Without more detailed excavation records in the public domain, the precise date of construction and the route it served remain unclear, but the classification alone places it within a well-documented category of early Irish infrastructure.