KEY to terms used:
Beach nourishment-beach restoration in which hydraulically pumped dredge material is directly placed onto an eroded beach.
Confined-placement of dredged material within diked nearshore or upland confined placement facilities that enclose and isolate the dredged material from adjacent waters.
Mixed-dredging operation that uses more than one dredged material placement alternative.
Overboard-placement of dredged material in rivers, lakes, estuaries, or oceans via pipeline or surface release from hopper dredges.
Open water/upland-combination of open water and upland placement of dredged material.
Upland/beach nourishment-combination of upland placement and beach nourishment using dredged material.
Upland-placement of dredge material on land above adjacent water surface elevation.
Wetlands nourishment-wetland restoration in which hydraulically pumped dredge material is directly placed in a wetland area.
Undefined-undefined or unknown at the time of data entry.
SOURCE: U.S. Army Corps of Engineers National Data Center, available at http://www.wrsc.usace.army.mil/ndc, as of May 17, 2001.