than TDMP (70.2 ± 3.0%). Submerged aquatic bed habitats showedsimilar results with EWN containing significantly higher sand con-tent (60.1 ± 7.4%; p < 0.001) than TDMP (10.2 ± 7.9%). The highersand content at EWN can be attributed to construction technique,due to its mid-river location and the natural re working of sediments following dredged material placement, allowing for the settlementof coarser particles while the fine soil materials were carried further downstream. Conversely, TDMP was created using a techniquein which sediment was deposited into a low velocity area along the river edge, promoting settling of fine sediment. The movement offine materials downstream has potential implications for dredging economics and engineering. For example, if less material isdeposited within a dredged material placement area, additionalcapacity is maintained for future maintenance dredging activities(USACE, 1983).Due to the construction method utilized, where dredged mate-rial placement occurred upriver from EWN over a number of years,the age of various portions of EWN can be determined by an anal-ysis of aerial images (Fig. 1), resulting in the development of a soil nutrient-time relationship (Fig. 3b, c). The EWN exhibits increas-ing TC and TN on the older, more mature portions of the wetland,demonstrating that EWN is accumulating organic matter over time similar to other wetlands (Berkowitz and White 2013). Total Cconcentrations at EWN reached 1.8% following 14 years of island development. Craft (2000) reported similar results with restoredwetlands near coastal North Carolina accumulating 2.0% C within15 years (TC values converted from soil organic C as describedin Pribyl (2010)). Nitrogen showed similar results with observed