This report summarizes the findings of teams of experts representing multiple agencies who participated in a process to assess the vulnerabilities of intertidal marsh sites in North and South Carolina. This work was sponsered by the National Estuarine Research Reserve System Science Collaborative, which supports collaborative research that addresses coastal management problems important to the reserves. The Science Collaborative is funded by the National Oceanic and Atmospheric Administration and managed by the University of Michigan Water Center (NAI4NOS4190145).