b'OPPORTUNITY LIVES HERECOASTAL INUNDATION Coastal Inundation MapThe Coastal Inundation Map on the next page depicts a 2017 data layer2017developed by the Delaware Geological Survey (DGS). It shows the extent of land inundation in one-foot increments from one foot to seven feet above the Mean Higher High Waterline (MHHW). The MHHW is the average of the highest high tides for an area over a specific period. Higher levels of inundation become more probable as sea level rise (SLR) continues.I-495I-95RT 13I-295LegendDelaware State 2nd Senate District BoundaryCoastal Inundation1ft2ft3ft4ft5ft6ft7ftDelaware Three Rivers Area Economic Development Master Plan 55'