[PDF] Environmental Effects Of Dredging Update Evaluating Ecosystem Development At Contaminated Dredged Material Placement Sites Volume D 96 2 eBook

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Page : 8 pages
File Size : 44,11 MB
Release : 1996
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Contaminated sediment dredged from Black Rock Harbor, Connecticut, was placed in aquatic, upland, and wetland environments as part of the Field Verification Program (FVP), a 6-year joint effort of the U.S. Army Corps of Engineers and the U.S. Environmental Protection Agency (Peddicord 1988). Scientists at the U.S. Army Engineer Waterways Experiment Station (WES) conducted laboratory experiments on the sediment prior to dredging, to evaluate the potential contaminant mobility for each dredged material disposal alternative. In October 1983, WES began evaluating the colonization of plants and animals into the upland and wetland sites and the contaminant mobility of heavy metals. Results of the monitoring conducted between 1983 and 1989 were published in an earlier article (Brandon, Lee, and Simmers 1992). This article examines the colonization and contaminant mobility between 1989 and 1992. It is anticipated that ecosystem development at this site will be evaluated through September 1998.

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Page : 162 pages
File Size : 13,43 MB
Release : 1992
Category : Dredging
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This document is intended to serve as a consistent "roadmap" for U.S. Army Corps of Engineers and U.S. Environmental Protection Agency personnel in evaluating the environmental acceptability of dredged amterial management alternatives. Specifically, its major objectives are to provide: A general technical framwork for evaluating the environmental acceptability of dredged material management, alternatives (open-water disposal, confined (diked) disposal, and beneficial uses). Additional technical guidance to augment present implementation and testing manuals for addressing the environmental acceptability of available management options for the discharge of dredged material in both ope water and confined sites. Enhanced consistency and coordination in USAC/EPA decision making in accordance with Federal environmantl statutes regulating dredged material management.

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Page : 6 pages
File Size : 30,16 MB
Release : 1991
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Contaminated sediment was dredged from Black Rock Harbor, Connecticut, in October 1983 and placed in aquatic, upland, and wetland environments as part of the US Army Corps of Engineers/Environmental Protection Agency Field Verification Program (FVP), 1981-1986 (Peddicord 1988). Upland tests (plant and earthworm bioassays) were conducted on the sediment before dredging to evaluate potential contaminant mobility under the upland disposal alternative. Laboratory test results were subsequently field verified at the field test site at 'Tongue Point, ' Bridgeport, Connecticut. The results of the upland disposal portion of the FVP and the changes occurring since the completion of the FVP for the upland disposal environment are summarized herein. This technical note emphasizes the contaminant mobility of heavy metals. Contaminant mobility and the progressive development of the upland ecosystem at this site will be evaluated until September 1995.

Author : R. N. Bray
Publisher : CRC Press
Page : 398 pages
File Size : 17,98 MB
Release : 2008-03-10
Category : Technology & Engineering
ISBN : 0203894898

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Expanding a port, deepening a navigation channel or creating new land for development, introduces changes to our physical, social, economic and political environment. Changes may result from events during the construction process, or relate to the nature of the completed structure. Changes can be positive or negative, short-term or long-term, and may affect the immediate vicinity of the project or a larger geographical area. Predicting and assessing all possible effects of a planned dredging activity in a scientifically-sound and reliable manner is essential, so that appropriate control measures can be taken to avoid or mitigate unwelcome impacts. This book provides guidance for a complete holistic environmental evaluation procedure and for the design and implementation of environmental control measures. The book is of particular interest to engineers, government agencies and port authorities, as well as civil engineering consultants and contractors involved in planning and designing dredging, maritime infrastructure and fluvial projects.

Author : James Walter Morton
Publisher :
Page : 44 pages
File Size : 15,39 MB
Release : 1977
Category : Dredging
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The goal of this study was to prepare a comprehensive review of the literature on the physical, chemical, and biological effects of dredging and spoil disposal in estuaries and to identify alternative spoil disposal methods. Specific objectives were to identify the most critical problems relating to dredging and spoil disposal and to summarize the progress made to date in solving these problems. Using literature search facilities, bibliographies, and communications with experts throughout the United States, about 520 scientific and technical articles on dredging and spoil disposal were screened. Information extracted from selected articles is included in this review.

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Page : 6 pages
File Size : 41,9 MB
Release : 1991
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This technical note summarizes data collected between 1983 and 1989 that relate to plant and animal communities colonizing the wetland creation site of the US Army Corps of Engineers/Environmental Protection Agency Field Verification Program (FVP). The management of contaminated dredged material and the mobility of contaminants from the dredged material into plants and animals are also described and related to the evaluation of test results by Lee and others (1991). This site will be evaluated through September 1995 under the Long-Term Effects of Dredging (LEDO) Program.