From Louisiana, still dealing with the effects of Katrina and other hurricanes:

The South Lafourche Levee District is trying several experimental restoration techniques, including partnering with a company that crafts artificial “floating islands” of marsh—biodegradable sheets of grass that eventually attach themselves to the mud. (“Land Loss and Levees in Lafourche and Terrebonne,” Bayou Child, April 26, 2010)

From a description of a project in Lincoln Park, New Jersey:

When all the projects are completed, 8,900 acres of habitat will be restored, and fish will gain access to 700 stream miles that had been blocked by obsolete and unsafe dams. The projects also will remove more than 850 metric tons of abandoned fishing gear and other marine trash, rebuild oyster and other shellfish habitat, and reduce threats to 11,750 acres of coral reefs. (“Lincoln Park Project Celebrates Earth Day,” by Lynn Russo Whylly, All Voices, April 25, 2010)