channel dredging Articles

  • Case study - channel dredging

    Location: Germany Year: 2010 Working Context description The working site is a channel situated in eastern Germany. Deposits of sand, lime and gravel has considerably lowered the water depth of the channel. The problem Fast dredging was required in order to re-open the channel to navigation. The customer already ...


    By Dragflow S.r.l.

  • Case study - channel dredging

    Location: Germany Year: 2010 Working Context description The working site is a channel situated in eastern Germany. Deposits of sand, lime and gravel has considerably lowered the water depth of the channel. The problem Fast dredging was required in order to re-open the channel to navigation. The ...


    By Dragflow North America

  • 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 ...


    By SRS Crisafulli, Inc.

  • Dredging Short Courses

    By Eric Lillberg, SRS Crisafulli Senior Applications Engineer 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 ...


    By SRS Crisafulli, Inc.

  • Monitor Dredging Slurry Flow from Outside the Pipe

    Dredging Equipment Manufacturers Choose Non-Contacting Greyline Flow Meters The Challenge Thousands of dredges are operated to maintain navigation channels in our rivers, lakes and harbours and to mine sand and gravel for the construction industry. Managing and optimizing production from a dredge requires continuous monitoring of pipeline pressure, vacuum ...


    By Greyline Instruments Inc.

  • Ecological Risk Assessment for Residual Coal Fly Ash at Watts Bar Reservoir, Tennessee Limited Alteration of Riverine‐reservoir Benthic Invertebrate Community Following Dredging of Ash‐contaminated Sediment

    Benthic invertebrate communities were assessed following the December 2008 release of approximately 4.1 million m3 of coal fly ash from a disposal dredge cell at the Tennessee Valley Authority (TVA) Kingston Fossil Plant on Watts Bar Reservoir in Roane County, Tennessee. Released ash filled the adjacent embayments and the main channel of the Emory River migrating into reaches of the Emory, ...


    By John Wiley & Sons, Ltd.

  • River Severn case study

    Shrewsbury and Atcham Borough Council River Severn at Shrewsbury, channel management proposals Hydro-Logic was appointed by Shrewsbury and Atcham Borough Council in 2008 to advise on the build-up of sediment within the River Severn, where it passes through the town. The council's pleasure boat had a history of running aground and they had been refused permission ...


    By Hydro-Logic Services

  • Qatar-Bahrain Causeway

    Huckbody Environmental was commissioned by the Qatar-Bahrain Causeway Consortium (QBCC) and COWI to provide expert input to the EIAs and Environmental Management Plans (EMPs) for the 40km embankment and bridge crossing between Qatar and Bahrain; the longest causeway in the world. The Government of the State of Qatar and the Government of the Kingdom of Bahrain intend to build a fixed road and ...


    By Huckbody Environmental

  • Changes in stage–flow relation of the East River, the Pearl River basin: causes and implications

    Water level and streamflow extracted from 891 hydrological episodes from both dry and flood seasons covering a period of 1954–2009 were analyzed to investigate stage–flow relations. Results indicate the following. (1) Since the early 1990s the low/high flow is increasing/decreasing. The water level, particularly the high level, is consistently decreasing. An abrupt decrease of ...


    By IWA Publishing

  • More Rain – How to Take Advantage of This Free Resource With Rainwater Harvesting Tanks

    As the rain continues into February, Farmers throughout the country are being urged to help alleviate flooding through pumping and not exacerbating situations through water channel dredging and similar.  But they are also being urged to start storing and using this excess water through rainwater harvesting, including the implementation of rainwater harvesting tanks. But it’s not only ...


    By ENDURAMAXX

  • Bank restoration industrial terrain - case study

    TenCate Geotube technology has played an important role in revitalizing the Mars, a 200 ha industrial terrain in Zutphen. By applying this technology, contaminated sludge has been safely stored and banks repaired. One component concerns increasing the accessibility of the business terrain for lorries and shipping. In this regard it was necessary to dredge the industrial harbour and the ...

  • Bioremediation Technologies for Marine Sediments

      USA – Baltic International Symposium on Advances in Marine Environmental Research, Monitoring and Technologies. Klaipeda, Lithuania. June 15-17, 2004 Global commerce relies heavily on waterborne transportation. Innovative, economical and environmentally sound ways to manage ...


  • Getting ready for a larger panama canal - assessing a critical large diameter force main

    Abstract Opened in 1905, the Government Cut is a manmade shipping channel between Miami Beach and Fisher Island, which allows better access to the Port of Miami in Miami, Florida. Before the Cut was established, a single peninsula of dry land stretched from what is now Miami Beach to what is now Fisher Island, and boats destined for the port at the mouth of the Miami River had to pass around ...


    By Pure Technologies

  • Nakoma Brook flood & hydraulic analysis & engineering study Sloatsburg, New York

    Performed Hydrologic Studies and Hydraulic Engineering Investigations and Designs for the Nakoma Brook Watershed located in Western Rockland and Southeastern Orange Counties, encompassing over 8 square miles. The study area focus was in the Village of Sloatsburg, NY at the intersection of Route 17 and Eagle Valley Road. Flood Control analyses were conducted using USACOE's HEC-1 and HEC-2 computer ...


    By GEA ENGINEERING

  • InfoWorks RS Problem Solver 4 – Sedimentation Movement

    Almost all watercourses are subject to the movement of sediment downstream over time. The underlying physical process is simple. Particles of material are picked up from the bed and banks of the watercourse at high rates of water flow and transported in suspension in the water. Larger and denser particles are picked up and suspended when the speed of flow is faster. When the rate of flow reduces ...


    By Innovyze

  • Reed beds facilitate transfer of tributyltin from aquatic to terrestrial ecosystems through insect vectors in the Archipelago Sea, SW Finland

    Due to their adsorptive behavior, organotin compounds (OTCs), such as tributyltin (TBT), are accumulated in aquatic sediments. They are resistant to biodegradation and, despite a ban in 2008, a potential source for future exposure. Sediment OTCs have mostly been measured from sites of known high concentrations such as ports, shipping lanes, and marine dredging waste sites. However, the possible ...


    By John Wiley & Sons, Ltd.

  • Bulk reactive media utilized in sediment cap remedy for large-scale remediation project case study

    Project: West Branch Grand Calumet River Reach 1-2, Roxana Marsh Legacy Location: East Chicago. IN Products: Organoclay2 PM-199 Background: in 2011. clean up began on Reach 1 and Roxana Marsh in the West Branch of the Grand Calumet River. This project involved mechanical and hydraulic dredging and removal of 222,000 cubic ...


    By CETCO

  • Remote monitors track river restoration success

    The Norfolk Rivers Trust has installed a remote river monitoring station that has been tracking water quality and flow before and after river restoration work at an area of ecological importance on the River Nar. Rising in chalk hills to the east of the village of Tittleshall, the river flows south for 2.5 km until it reaches Mileham, then predominately west for 39.5 km through the villages of ...


  • Living with floods in the Mahanadi Delta, India

    In October 2013, one of the fiercest cyclones to hit the Bay of Bengal for many years made landfall on the low-lying delta coast of the Indian state of Odisha. With winds battering the coastline at more than 200 kilometres per hour, the structural damage from cyclone Phailin was intense. Thousands of straw, timber and bamboo homes were destroyed across the delta of the River Mahanadi, one of ...


    By Wetlands International

  • Stormwater: Questions and Answers

    The whole subject of Stormwater is complicated. Here's a chance for you to check out some of the most frequently asked questions about stormwater . . . and their answers. What is an NPDES (National Pollutant Discharge Elimination System) permit? The Clean Water Act prohibits anybody from discharging 'pollutants' through a 'point source' into a 'water of the United States' unless they ...


    By Ben Meadows

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