Decorative Landscaping Products
Fish & Wildlife Habitats
Maintenance dredging in harbors, access channels, and rivers produces mixtures of sand, silt, clay and organic matter that can be excellent ingredients for topsoil. Some dredged materials may be excellent topsoil as is. Other dredged material may require blending with other residual materials such as organic matter (yardwaste, wastepaper, storm debris, etc.) and biosolids (human sewage sludge or animal manure) to manufacture enhanced fertile topsoil. The dredged material may be used to improve soil structure for agricultural purposes. For production of food, uncontaminated material must be used. For other uses, the allowed contaminant level will depend on the use of the topsoil. In some cases, suitable material may be placed in a thin layer directly by pumping. After dewatering, the material is suitable topsoil for seeding and planting.
Dewatering may require several years, depending on the granular texture of the dredged material and is influenced by additional substances or by the type of dewatering process. Dredged material from coastal or tidal areas will require special attention to salinity, since most agricultural species can not tolerate and grow in salty soil. Salinity may be reduced naturally by rain or by the dewatering process. Other uses of topsoil might include using dredged material to cap poor soils or to cover a fill of coarse material (e.g., urban or industrial waste sites).
Dredged material can also be used in the manufacture of blended artificial topsoil products. The blended topsoil can be used for athletic fields such as soccerfields and ball fields, home landscaping, golf courses, parks, brownfield redevelopment, etc. Required topsoil specifications for a specific use can be met through blending appropriate materials together in specific amounts.
Recommended Sediment Types
- Bronx, NY
- Ft. Drum, NY
- Green Bay Harbor, Milwaukee, WI
- Hamlet City Lake, NC
- Herbert Hoover Dike, FL
- Jacksonville Harbor, FL
- Lake Vancouver, Vancouver, WA
- Mobile River and Harbor, AL
- Mobile, AL (Landfill Cover)
- New York/New Jersey Harbor Demonstration, NY
- Palmyra Cove Demonstration Project, NJ
- Sediment Decontamination Demo, New Jersey
- Sediment Processing Facility, New Jersey
- Toledo Harbor, OH
- Vintondale, PA (Athletic Fields)
- Vintondale, PA (Constructed Wetland)
- Vintondale, PA (Trees and Shrubs)
- Wilmington, NC