Figure 1 - Disposal/Use of Material Dredged by the U.S. Army Corps of Engineers

Figure 1 - Disposal/Use of Material Dredged by the U.S. Army Corps of Engineers

Cubic yards (millions)

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Year Beach Nourish-ment Confined Under-water Confined Mixed Overboard Open Water/
Upland
Upland/
Beach
Upland Wetlands Nourish-ment Undefined
FY96 20 18 0 44 70 7 1 15 9 4
FY98 13 19 0 37 104 7 3 15 39 0
FY00 14 30 0 13 54 14 0 12 7 10

KEY:
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.
Underwater confined-placement of dredged materials in an underwater area that is capped or otherwise isolated from the surrouding area.
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, Navigation Data Center, Dredging Information System, available at http://www.wrsc.usace.army.mil/ndc/drgmatdisp.htm, as of April 2002.