U.S. coastlines are experiencing more frequent and severe coastal flooding, both recurrent tidal flooding events and life-threatening storm surge events. NOAA and DOT have initiated four four-year projects to investigate the effects of coastal flooding on surface transportation infrastructure. The projects are advancing modeling approaches that evaluate how effective different infrastructure designs are at reducing the impacts of repeated coastal flooding events, pairing pavement deterioration modeling with coastal flood and ecosystem modeling. Research teams are engaging with community decision-makers, state transportation agencies, and natural resources agencies to ensure that results effectively inform coastal planning and project development. The projects are part of NOAA’s National Centers for Coastal Ocean Science Effects of Sea Level Rise Program.