Piers and jetties of this kind, found all along the west coast, were rarely grand undertakings. Many were built or improved during the nineteenth century, sometimes as famine relief works in the 1840s, sometimes through the efforts of the Congested Districts Board in the decades that followed, as the British administration attempted to stimulate economic activity in the poorest coastal parishes. They served communities whose lives depended on access to the sea, whether for fishing, for kelp harvesting, or for the movement of turf, livestock, and goods between townlands that were more easily reached by water than by road. A structure listed as a pier or jetty at Roisín na Mainiach would fit naturally into that broader pattern of small-scale coastal infrastructure, the kind that rarely appears in histories of great engineering but which shaped daily life in a very direct way.