sediment dredging News

  • EPA concludes season’s dredging of New Bedford harbor contaminated sediment

    This latest dredging effort started in May 2011 and focused on the northern cove on the Acushnet side of the Harbor and off-shore from the Titleist facility on Hadley Street in New Bedford. Approximately 11 acres of sediment were dredged this year, resulting in the removal of more than 21,600 cubic yards of contaminated sediment. Dredging activities will resume again in Summer 2012. The dredged ...

  • Plug and Play Dredging: how to Move Sediment to the Drying Bed

    Got a minute? Watch a one minute video of the plug and play SD-110 Rotomite dredge in the Philippines. "Plug and Play" is a catchphrase of USB computer gadgets, representing equipment that can be connected to a system and used immediately. No system configurations; ...


    By SRS Crisafulli, Inc.

  • Dredging short courses

    When I first started as an applications engineer for SRS Crisafulli, I searched for information on the subject of dredging. I was surprised to find there was very little non-commercial content available. I have since found a pair of short courses, offered annually by Texas A&M, which I recommend highly to any professional interested in dredging. The Center for Dredging Studies at Texas ...


    By SRS Crisafulli, Inc.

  • Dredging and shoreline remediation

    Many situations can complicate a shoreline’s integrity. These can range from flooding, hurricanes and man-made disasters and can even include aquatic harvesting and human recreation. Making efforts to protect a shoreline from these intrusions helps protect economic and recreational interests. Shoreline remediation is an investment in the overall economic and natural habitat of a community. ...


    By SRS Crisafulli, Inc.

  • U.S. EPA designates area off Guam for disposal of clean sediments from dredging (GU)

    The U.S. Environmental Protection Agency has published a Final Rule in the Federal Register designating an ocean disposal site offshore of Guam for clean sediments from dredging projects. Dredging is necessary to maintain or improve safe navigation in existing ports and harbors, as well as when new shipping facilities are built. Whenever possible, the sediments from dredging projects are ...

  • The environmentally effective remediation of marine sediment

    31st July 2006: Following a series of successful trials around the world, Virotec’s patented technologies are set to penetrate the UK market to great environmental effect. Their innovative ViroSoil™ Technology has been shown to offer a viable and economic total treatment solution for contaminated marine sediment through the neutralisation of the acid generating capacity of the dredged ...


    By Clarity Authoring

  • SediMeters can save corals from dredging

    The ongoing dredging of Miami Harbor has caused siltation (the accumulation of sediments) on the coral reefs outside the harbor. In a settlement of a recent lawsuit, the contractor, U.S. Army Corps of Engineers (USACE), has agreed to pay $400,000 for moving corals out of the way. They are not using any instrument for measuring the sediment accumulation, even though such an instrument exists, is ...


    By Lindorm, Inc.

  • Impact of one-off dredging deposits important for licensing

    New insights into the impact of dredging on the environment highlight the distinction between small, frequent deposits of sediments arising from maintenance dredging, and larger one-off capital deposits. Understanding this distinction is crucial for effective licensing and monitoring of dredging. When sediment is removed from the bottom of a body of water and deposited elsewhere, as in dredging, ...

  • Mud Cat™ Auger Dredge used in `Perfect Project`

    Experienced public works directors don't need a crystal ball to see into the future. When the EPA established new water quality regulations in 2005, the public works officials in Cobb County, Georgia, knew that major rehabilitation work at their water treatment plants was on the horizon. The Cobb County-Marietta Water Authority (CCMWA) in suburban Atlanta recently completed the largest dredging ...

  • Proactive Dredging: a little now or a lot later

    If public works departments had a list of fun things to do, dredging sediment out of holding ponds would not be on it. It’s like cleaning the shower in your bathroom. Whether you make it a frequent quick job or an occasional laborious task, time and effort must be set aside to maintain a fixture that is as critical as it is uninteresting. This is the scenario that played out for ...


    By SRS Crisafulli, Inc.

  • Water quality protected during dredging of Somerset Levels

    A special monitoring system is helping protect water quality on the Somerset Levels and Moors where a major dredging operation is under way following severe flooding. The system, which was supplied by OTT Hydrometry and installed by Wavelength Environmental, is designed to protect the river ecology by issuing email alerts if water quality deteriorates beyond pre-set conditions. Any such alerts ...


    By The OTT Hydromet Group

  • Sixth Season of Hudson River Dredging Begins; Historic Dredging Project Draws to a Close; Next Up: Cleaning Up Floodplains

    Today, U.S. Environmental Protection Agency Regional Administrator Judith A. Enck announced the start of the sixth, and final, season of dredging of PCB-contaminated sediments from the bottom of the Hudson River. The historic dredging project – one of the largest and most complex cleanups in Superfund history – began in 2009. The EPA is overseeing the dredging project that is being ...

  • Dredging firm to pay $105,000 fine for ocean dumping violations in Mass.

    A Salem, Mass. dredging company has agreed to pay a penalty of $105,000 to settle EPA claims that it improperly disposed of dredged sediments. EPA asserted that Burnham Associates violated the Marine Protection, Research and Sanctuaries Act, commonly known as the Ocean Dumping Act, as part of a dredging project in Hingham Harbor. Burnham, through the actions of its subcontracted towing company, ...

  • GEI Enhances Contaminated Sediments Practice with Shoreline Work

    GEI Consultants, Inc.,one of the nation's leading geotechnical, environmental, water resources, and ecological science and engineering firms announced today the accelerated growth of its national Contaminated Sediments Practice. The company has strengthened its offerings both through acquisition and the hire of a number of senior experts and mid-level technical staff in waste engineering, marine ...


    By GEI Consultants, Inc.,

  • Innovative dredging technology accelerates removal of residual contamination in Ashtabula River

    The US EPA's Great Lakes National Program Office (GLNPO) and their non-federal sponsor, the Ashtabula City Port Authority, along with the State of Ohio, the U.S. Army Corps of Engineers (USACE), and a consortium of private companies collaborated to design and implement an innovative approach for addressing extensive sediment contamination in a portion of the Ashtabula River near Lake Erie. The ...

  • 39-mile dredging/capping approach used to treat fox river PCBsd

    The Lower Fox River in Wisconsin contains approximately 8 million yd3 of PCB-contaminated sediment targeted for active remediation. The site's records of decision (RODs) were amended in 2007 and 2008 to specify dredging of nearly 4 million yd3 of sediment with high concentrations of PCBs, followed by in situ capping of approximately 560 acres of sediment comprising operable units (OUs) 1 through ...

  • Toxicity tests improve the assessment of harbour sediment quality

    Harbour sediments should be tested for their toxic effects on living organisms in addition to being subject to the chemical, physical and biological tests usually conducted to assess water quality, according to recent research from Portugal. This would provide a better environmental assessment of dredged material to help guide port authorities’ decisions on its disposal. Under the Water ...

  • Superfund dredging resumes for seventh season in New Bedford Harbor (MA)

    Through the first two weeks of June, work crews will be mobilizing equipment and personnel for the startup of EPA’s seventh season of Superfund dredging in New Bedford Harbor. Dredging is officially set to begin on June 14, 2010. This is the same cleanup process that has been used since the start of full scale dredging in 2004. In total, approximately 193,000 cubic yards of PCB-contaminated ...

  • $50 Million Cleanup of Ashtabula River Sediment Begins

    Untitled Document ASHTABULA, Ohio , June 5, 2006 (ENS) - Crews have begun to remove contaminated sediment from the bottom of the Ashtabula River, and today federal, ...

  • Enbridge begins new dredging project on Kalamazoo River to comply with EPA Order

    The U.S. Environmental Protection Agency today announced that Enbridge has begun a new round of dredging in Michigan’s Kalamazoo River to clean up oil from the company’s July 2010 pipeline spill. The cleanup work is required by EPA’s March 2013 administrative order, which requires Enbridge to complete additional dredging by the end of the year above the Ceresco Dam, upstream of ...

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