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Beneficial Uses
 Black Dot Image Introduction
 Black Dot Image Decision Process
 Black Dot Image Sediment Types
 Black Dot Image Glossary
 Black Dot Image Links
 Black Dot Image References
 Black Dot Image K-12 Lessons
 Black Dot Image Lead Organizations
 Black Dot Image Authorities
 Black Dot Image Calendars

Agricultural/Product Uses
 Black Dot Image Aquaculture
 Black Dot Image Construction Materials
 Black Dot Image Decorative Landscaping Products
 Black Dot Image Topsoil

Engineered Uses
 Black Dot Image Beach Nourishment
 Black Dot Image Berm Creation
 Black Dot Image Capping
 Black Dot Image Land Creation
 Black Dot Image Land Improvement
 Black Dot Image Replacement Fill
 Black Dot Image Shore Protection

Environmental Enhancement
 Black Dot Image Fish & Wildlife Habitats
 Black Dot Image Fisheries Improvement
 Black Dot Image Wetland Restoration

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Replacement Fill

    Dredged material may be used as a replacement fill when the physical qualities are superior to soils near the dredging site. In industrial fill sites, peat and clayish soils are usually removed and replaced by sand or other granular dredged material to improve physical properties needed to meet building requirements. Weak soils may be replaced with sand from construction of tunnels, bridges, fairways, and ports. Fine-grained soils do not have the necessary physical properties for industrial fill in most civil works projects; however, green areas or parks may be suitable applications. Some examples of replacement fills include:
    • Filling holes in the landscape left from gravel or clay mining.
    • Removal of soft layers so that an area is reclaimed with dredged sand.
    • Trenching peat or soft clay and filling with sand to get a more stable layer of soil; for example, for abutments, tunnels, roads, and railways.
    • Filling obsolete canals and docks to improve the use of the land.

    Recommended Sediment Types

    • Rock
    • Gravel and sand
    • Mixture

    Case Studies

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Updated May 2016