cofferdam Articles

  • Aggressive dewatering aids concrete rehab at Abitibi

    An enormous volume of water passes through the Abitibi Canyon Generating Station every hour of every day. In order to complete critical concrete repairs on the hydro power station, general contractor The Barclay Construction Group needed to find a way to pump and discharge almost 30 million gallons of water in a 500-metre section of the river upstream from the station in under 30 hours. Aquatech ...


    By Aquatech Dewatering Company

  • Griffin Dewatering pumps 15 million gallons of water from flood control project with 75 foot deep wells

    On April 29 2011, Houston-based Griffin Dewatering Corp. began pumping 15 million gallons of water from the site. It also used 42 10-in.-dia, 75-ft-deep wells outside the dam perimeter to lower the groundwater table and relieve external hydraulic pressure. Griffin is working on several Corps projects in New Orleans, but Michael Lippard, Griffin senior project manager, says Seabrook is ...


    By Griffin Dewatering

  • Seismic study at the Pacific and Atlantic locks of the panama canal case study

    Panama Canal Zone Grupo Unidos Por el Canal (GUPC) was tasked with characterizing subsurface conditions within the Third Set of Locks Project for the Panama Canal. In support of their characterization efforts, GUPC requested that seismic geophysical data be acquired at four locations within the project area.  These locations include portions of the: Miraflores ...


    By GeoView, Inc.

  • Long Tan Hydroelectric Dam

    Black & Veatch is the design and construction consultant for the world's largest roller-compacted concrete dam, which will be the world's fourth largest hydropower station and protect 12 million people from flooding. China must create urban infrastructure for the equivalent of the city of Houston, Texas, every month for the next 30 years to accommodate the relocation of 280 million rural ...


    By Black & Veatch Corporation

  • Lake Fort Smith dam & reservoir enlargement

    Client: City of Lake Fort Smith, Ark.  Completion Date: 2006  Services Provided Intake tower with microtunnels Road relocation Raw water lines Outlet works Pressure reducing station Dam embankment Principal spillway Auxiliary spillway ...


    By Burns & McDonnell

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