Figure 4-6 Disposal/Use of Material Dredged by the U.S. Army Corps of Engineers

Figure 4-6
Disposal/Use of Material Dredged by the U.S. Army Corps of Engineers

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  1997 1999 2001
Beach\rnourishment 13,109,655 6,653,865 22,336,073
Confined 32,294,086 36,021,807 12,153,000
Underwater 0 0 1,274,430
Mixed 65,365,841 20,828,480 36,690,000
Overboard 84,990,343 142,604,404 80,244,480
Open water/upland 5,412,336 5,555,000 6,974,600
Upland/beach 1,783,300 1,150,000 1,109,430
Upland 15,308,625 17,135,400 13,445,173
Wetlands\rnourishment 8,500,000 11,421,051 28,628,142
Undefined 3,221,000 4,460,587 9,907,540

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.