Long Island Sound’s saltmarshes provide critically important habitat for a variety of water-birds, yet are among the most vulnerable habitats to climate change. Sea Level Affecting Marshes Model (SLAMM) is a mathematical model uses digital elevation data and other information to simulate potential impacts of long-term sea level rise on wetlands and shorelines. SLAMM II adds additional factors including restrictions to march migration like culverts. David Kozak of the DEEP Office of Long Island Sound Programs will discuss how SLAMM II can be used to  predict concerns like road and wastewater plant flooding so that resiliency plans can be made.