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What do we do with dredging spoils?

According to a report by Madeline Urbish, a Senior Public Policy Advisor, billions if not trillions of cubic yards of sediment are removed from U.S. waters every year, but where does all the sand, salt, and silt go?

Currently, much of the sediment is stored in containers or dumped into open waters. In fact, as much as 50 percent of dredged Great Lake Sediment is deposited in the open lakes.

In Ohio, the Army Corps of Engineers dredges enough sediment to fill 220,000 dump trucks twice each year from the Cuyahoga River. The state is now funding a way to repurpose the sediment through pilot projects.

One of the most creative ways the sediment is being repurposed is through creating custom soil blends to use in construction and landscaping. They caton characterize soil blends based on their chemical and physical makeup which allows scientists to create tailored products using the dredged material as the primary ingredient.

Other uses for dredged sediment is capping landfills or brownfields, transforming dredged material into lightweight aggregate, reclaiming lands damaged by sands, coal mining, and gravel; manufacturing brick or block, producing manufactured topsoil, enhancing degraded farmland, and creating fill for construction projects.


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Featured Project

Hurricane Damage Restoration

Florida Keys


  • Remote Island Location 3 miles from mainland in FL Keys
  • Hydraulic Dredging to Geotextile tubes
  • Automated Polymer Injection System for Material Dewatering and Clean Effluent Requirements
  • Dewatering site constructed on sectional barge at island location
  • Dredging, Dewatering, Hauling and Disposal all simultaneously
  • Geotextile tubes transported by barge back to mainland daily for offloading into trucks
  • Sensitive Marine Benthic Resource avoidance and protection integral part of project requirements


C&M Dredging performed an environmental restoration dredging project to reverse impacts caused by hurricane damage to an island resort in the Florida Keys. A canal system and basin system that was in place for barges and vessels that serviced the island resort daily had been filled in by hurricane-force winds and tidal surge.

The difficulty was that the project site was 3 miles from the mainland, on an island.

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