CRMP_Impacts

The purpose of this document is to provide a technical overview of the impact assessment approach and methods used to identify and evaluate strategies for coastal resilience in the Virginia Coastal Resilience Master Plan (CRMP). The impact assessment produces quantitative data that characterizes how Virginia’s people and landscape will be affected by coastal hazards, now and into the future, accounting for sea level rise (SLR). The CRMP includes eight coastal Planning District Commissions and Regional Commissions. The impact assessment incorporates the coastal flood hazard modeling from the Coastal Hazard Framework, data gathering results, and informs risk summarization and resilience project evaluation. While the study area is subject to other flood hazards such as rainfall-driven (pluvial) flooding, riverine flooding, and other geomorphic hazards such as shoreline erosion and subsidence, these processes, while drivers of risk in all, or portions of the study area, were not included in the first iteration of the Virginia CRMP. These limitations are acknowledged and accepted. Future iterations of the CRMP will expand the hazards considered, including evaluation of cascading impacts from joint occurrence of these complicated natural processes.