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UDaily: Delaware Sea Grant, partners develop interactive flood risk visualization tool

UDaily: Delaware Sea Grant, partners develop interactive flood risk visualization tool

The Delaware Sea Grant College program recently unveiled interactive flood risk awareness maps for 10 communities in Sussex County, many of which have experienced significant bayside flooding in recent years, especially during Hurricane Sandy. The project is a collaborative effort between Delaware Sea Grant, the U.S. Geological Survey (USGS), and the Delaware Department of Natural Resources and Environmental Control (DNREC). It is supported through funding from the National Sea Grant Coastal Community Climate Adaptation Initiative.

The interactive map tool depicts the landward extent of flooding (how far floodwaters would travel in a horizontal direction) — and how deep the water could become — in the event of a one percent annual chance (or 100-year) flood. In areas with the greatest risk of flooding, known as Special Flood Hazard Areas, a building has a 26 percent chance of being flooded over the course of a 30-year mortgage.