That a bridge of this kind has been recorded as a monument at all speaks to how thoroughly the physical infrastructure of Ireland's railway era has been folded into the archaeological landscape, treated with the same seriousness as ring forts or souterrains.

Ireland's railway network expanded rapidly through the nineteenth century, with dozens of regional and branch lines threading through rural counties, many of them later closed during the rationalisation of the mid-twentieth century. Bridges built to carry these lines, often in cut stone or brick with carefully engineered arches, frequently outlast the tracks they once served, left in fields or over streams long after the sleepers have been lifted. The Leaselands bridge is one such survival, its inclusion in the archaeological record acknowledging that industrial and transport heritage carries the same weight as more ancient remains.