The layer depicts data for 100-Year Storm Surge [under current conditions], 100-Year Storm Surge Plus One Foot of Sea Level Rise, 100-Year Storm Surge Plus Three Feet of Sea Level Rise, 100-Year Storm Surge Plus Five Feet of Sea Level Rise, and 100-Year Storm Surge Plus Seven Feet of Sea Level Rise. These scenarios, and all attendant modeling, originated with CRMC. This layer was created by the Rhode Island Statewide Planning Program (RISPP) as part of the 2016 Municipal Transportation Assets Vulnerable to Sea Level Rise and Storm Surge Project using inundation data from the STORMTOOLS Dataset prepared by the Coastal Recourses Management Council (CRMC). Five storm surge inundation scenarios from STORMTOOLS were brought together such that each polygon would depict one inundation scenario.