Degradation Description
This particular tidal marsh in the Fivemile River has been gradually losing elevation and shrinking in aerial extent for decades. Analysis of aerial photos dating back to 1934 indicated that losses here have been going on since at least 1951. Loss of this tidal marsh in the Fivemile River is thought be caused by a combination of factors, including increased sea level rise, reduced deposition of riverine and marine sediments, and the seawall located along this marsh's landward edge since prior to 1934.