Ireland’s changing climate is causing extreme weather events to become more intense and frequent, resulting in adverse impacts to national transport infrastructure. It is necessary for transport asset owners, managers and developers to appropriately consider these evolving risks, both when designing new infrastructure and managing existing networks. This paper outlines Transport Infrastructure Ireland’s (TII) approach, and progress to date, to better understand and address its climate change risks, through the development of an overarching strategy, technical standards and guidance, and climate change risk assessments. The paper focuses on TII’s two-stage approach to climate risk assessment covering both TII’s physical assets (national roads, light rail, land and some greenways and cycleways), along with their staff and buildings. The first stage of the assessment has provided a high-level screening of all climate hazards and assets, to identify priorities for the more detailed climate risk assessments. The paper concludes by setting out TII’s next steps and priorities in relation to climate adaptation.