Data Basin is a science-based mapping and analysis platform that supports learning, research, and sustainable environmental stewardship.
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The
area that is expected to be flooded during a flood event that has a 0.2
percent chance of occurring in any given year. This does not mean that
the area will only flood once every 500 years, but that the chance of it
flooding is approximately 1 in 500 each year. Flood plain boundaries
are established by the Federal Emergency Management Agency (FEMA).
Layers in this dataset are based on combinations of the following options.
You may choose from these options to select a specific layer on the map page.