The impacts of coastal erosion from Dublin to Wicklow are increasingly evident with beaches and cliffs being lost on an annual basis, threatening parts of the east coast railway line. This rate of coastal loss is projected to increase in line with sea level rise with the railway becoming more vulnerable to coastal hazards. In 2017, Iarnród Éireann began to assess the locations along this railway line that are vulnerable to the effects of climate change and the anticipated increase in maintenance required. The outputs framed the current East Coast Railway Infrastructure Protection Projects (ECRIPP), which was established to deliver enhanced coastal protection to the existing railway infrastructure. Iarnród Éireann and their multi-disciplinary consultant Jacobs, were tasked with creating resilience for these critical sections of rail line. A series of engineering measures to provide climate change resilience were identified. These measures were then reviewed by away of a bespoke multi-criteria analysis to identify those that were most effective to achieve resilience to the railway up to 2100. This paper outlines the process being led by Iarnród Éireann to protect this key sustainable public transport corridor from the effects of climate change in order to support future Greenhouse Gas Emissions reduction.