Tidal salt marshes are defined by frequent tidal flooding, unique plant communities, and the ability to trap valuable sediments that build the marsh itself. While they are adapted to the natural ebb and flow of the tide, sea-level rise and other threats are changing the frequency and duration of flooding.

This story map illustrates how, motivated by a shrinking coastline and empowered by emerging techniques, coastal engineers and biologists are working together to put sediment back where it belongs — in the marshes.