The interaction of coastal and inland storm hazards is not only a physical barrier it can also be an organizational barrier. Coastal engineers and Inland engineers typically use different tools with different purposes to evaluate flood risk. Working collaboratively with experts from both fields provides opportunities for advancements in both disciplines and reduces the invisible barriers between the physical hazards of coastal and inland flooding. The Engineer Research and Development Center’s Coastal Hydraulics Laboratory and the Institute of Water Resource’s Hydrologic Engineering Center, both within the U.S. Army Corps of Engineers, are working together to link numerical tools to share inland boundary conditions from coastal models, and tailwater boundary conditions from inland models, leverage statistical properties of coastal storms for the statistical sampling of storms for inland modeling, developing a shared computational process for combined consequence estimations, and scaling computational resources into the cloud with shared platforms and resources.