reservoir dredging News

  • Great performance and productivity with the new Dragflow Amphibious Dredge

    Productivity and stability at the highest level with the new Dragflow Amphibious Dredge. The Dragflow DRM (Multi-Purpose Dredge) series represents a step up on the approach of dredging technique. The extreme mobility in any kind of swamp and the full floatability, allow this dredge to reach most remote locations otherwise impossible to get with any other equipment: the DRM can easily operate also ...


    By Dragflow S.r.l.

  • 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.

  • 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 ...

  • Remote-control boat speeds reservoir surveys

    As the regulatory requirement to assess reservoirs and lakes expands to include smaller bodies of water, HR Wallingford has developed a remote control boat which is able to collect hydrometric data quickly, simply, safely and accurately. The ARC-Boat employs a sophisticated SonTek (a Xylem company) M9 Acoustic Doppler Profiler (ADP®) which is a 5-beam depth sounding device that scans the ...


    By Xylem Analytics

  • Mud Cat MFD-1000 Dredges Operating in the Tigris and Euphrates Rivers

    Multiple amphibious, multi-function dredges from Mud Cat are operating in Iraq to clean various dams and barrages that are positioned along the Tigris and Euphrates Rivers. Iraq’s Ministry of Water Resources (MWR) purchased the MFDs to remove accumulated silt, sand, and vegetation at each dam’s basin. By performing regular dam maintenance, Iraq’s MWR can maintain the designed ...

  • Gandomcar properties ordered to restore impacted section of Plum Creek (Douglas County, Colo.)

    The U.S. Environmental Protection Agency has issued a compliance order to Jahanbin Gandomcar and Gandomcar Properties, LLC (Gandomcar), for violations of the Clean Water Act at Plum Creek near Louviers in Douglas County, Colorado. EPA alleges Gandomcar violated the Clean Water Act when dredged and fill materials were discharged into Plum Creek during the construction of an irrigation diversion ...

  • EPA issues rule to reduce water pollution from construction sites

    The U.S. Environmental Protection Agency has issued a final rule to help reduce water pollution from construction sites. The agency believes this rule, which takes effect in February 2010 and will be phased in over four years, will significantly improve the quality of water nationwide. Construction activities like clearing, excavating and grading significantly disturb soil and sediment. If that ...

  • EPA Finalizes Passaic River Cleanup; One of the Largest Superfund Projects in EPA History Will Protect People’s Health and the Environment

    In an action that will protect people’s health and the environment, and benefit riverfront communities, the U.S. Environmental Protection Agency today finalized a plan to remove 3.5 million cubic yards of toxic sediment from the lower eight miles of the Passaic River in New Jersey, followed by capping that entire stretch of river bottom. The sediment in the Passaic River is severely ...

  • EPA Proposes Plan to Remove Toxic Sediment from the Passaic River; the Largest Cleanup in EPA History

    In an historic action that will protect people’s health and the environment, and benefit riverfront communities, the U.S. Environmental Protection Agency today proposed a plan to remove 4.3 million cubic yards of highly contaminated sediment from the lower eight miles of the Passaic River in New Jersey. The sediment in the Passaic River is severely contaminated with dioxin, polychlorinated ...

  • WFS receives funding to develop subterranean environmental monitoring system

    Thanks to new technology pioneered by WFS, the environmental industry stands to benefit from higher performance, cheaper, and more easily deployable wireless monitoring systems. With the support of a SMART Award from the Scottish Government, WFS will conduct an 8-month feasibility study into the development of the world’s first underwater and underground RF communication system designed ...


    By WFS Energy & Environment

  • An economic case for restoring rivers and their ecosystem services

    Unless they are sustainably managed, commercial timber forests generally have low amounts of deadwood on the forest floor, as timber is harvested before it falls. However, this can affect local ecosystem services provided by forest streams. Naturally fallen logs can help purify stream water and prevent ...

  • Integral Consulting Has Banner Year on Contaminated Sediment Projects

    In 2008, Integral’s sediment scientists, ecologists, and engineers were busier than ever with new projects on both U.S. coasts and continuation of existing projects around the country. New contract awards included environmental services to conduct a large sampling program for Washington Closure Hanford on the Columbia River and a site characterization project at the Jemez Canyon Reservoir in ...


    By Integral Consulting Inc.

  • Black & Veatch-designed project in Singapore will help bring community closer to water

    A groundbreaking ceremony was recently held for the Active, Beautiful, Clean Waters (ABC Waters) project on the shores of Singapore’s Jurong Lake. Singaporean Minister for Finance and Adviser for Jurong Grassroots Organizations, Tharman Shanmugaratnam, presided at the ground breaking for the project being undertaken by Black & Veatch for the Singapore national water agency PUB. The project is ...


    By Black & Veatch Corporation

  • America`s 10 most endangered rivers

    Diminished by drought, impounded by 11 hydroelectric dams, and the subject of a US Supreme Court water battle between the states of North and South Carolina, the Catawba-Wateree River today was named the most endangered river in the United States. The Catawba River begins its 300 mile run to the Atlantic Ocean high in the Blue Ridge mountains of western North Carolina, and flows through the ...

  • North Carolina river turns to gray sludge after coal ash spill

    Canoe guide Brian Williams dipped his paddle downstream from where thousands of tons of coal ash has been spewing for days into the Dan River, turning the wooden blade flat to bring up a lump of gray sludge. On the riverbank, hundreds of workers at a Duke Energy power plant in North Carolina scrambled to plug a hole in a pipe at the bottom of a 27-acre pond where the toxic ash was stored. ...


    By Associated Press

  • Climate change in BC – coming to grips with reality

    A report quietly released last month by Natural Resources Canada noted that significant impacts of climate change were already evident in all parts of the country and that these growing and irreversible changes would have profound implications for our economy, our lifestyles and our ecosystems. The report, ...


    By GLOBE Foundation

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