Projected Sea Level Rise in Washington State: A 2018 Assessment

The Washington Coastal Resilience Project (WCRP) is a three-year effort to rapidly increase the state’s capacity to prepare for coastal hazards, such as flooding and erosion, that are related to sea level rise. The project will improve risk projections, provide better guidance for land use planners and strengthen capital investment programs for coastal restoration and infrastructure.

One of the objectives of the WCRP is to develop an updated assessment of projected sea level change for coastal Washington State and its relationship to coastal hazards such as flooding and erosion. Washington State has two previous assessments of sea level rise; one published in 2012 by the National Academies of Science (NRC, 2012), and another in 2008 (Mote et al., 2008). This report provides an updated set of sea level rise projections that incorporates the latest science, provides community-scale projections, and is designed for direct application to risk management and planning. Subsequent reports will describe new findings related to storm surge, waves, and efforts to integrate sea level rise in coastal planning and management.