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Field Investigations of the Nature, Degree, and Extent of Turbidity Generated by Open-Water Pipeline Disposal Operations

Description: This report follows field investigations made to study the characteristics of turbidity plumes in the vicinity of open-water pipeline disposal operations.
Date: July 1978
Creator: Schubel, J. R.; Carter, H. H.; Wilson, R. E.; Wise, W. M.; Heston, M. G. & Gross, M. G.
Partner: UNT Libraries Government Documents Department

Gold Dredging in the United States

Description: Report discussing the development of gold dredging in the United States, the essential features of present-day dredges, the facts that determine whether a placer deposit can be profitably dredged, and the approved methods of prospecting placer ground and of operating dredges. Intended for designers and builders of dredges, mining engineers, and persons who may contemplate investing capital in placer-mining ventures.
Date: May 1918
Creator: Janin, Charles
Partner: UNT Libraries Government Documents Department

The History and Development of Gold Dredging in Montana: with a Chapter on Placer-Mining Methods and Operating Costs

Description: From Introduction: "Although the purpose of this paper is to describe gold dredging in Montana, a brief mention of some early appliances used in New Zealand, Australia, and California may serve as a world-connecting link in our consideration of the development of gold dredging."
Date: 1916
Creator: Jennings, Hennen
Partner: UNT Libraries Government Documents Department

Safety Practices in California Gold Dredging

Description: From Introduction Purpose of Report: "The importance of safety work in connection with the operations of gold dredges assumed such proportions at one time that the State of California deemed it necessary to issue a special bulletin on this subject."
Date: 1932
Creator: Ash, S. H. (Simon Harry), b. 1889
Partner: UNT Libraries Government Documents Department

Underground Biomass Dynamics and Substrate Selective Properties of Atlantic Coastal Salt Marsh Plants

Description: From executive summary: "This report summarizes work done on the dynamics of the underground portion of some of the salt marsh plants along the Atlantic coast of the United States, the characterizations of soils in those plant stands, and experiments on the substrate selective properties of several of the plants."
Date: December 1977
Creator: Gallagher, John L.; Plumley, F. Gerald & Wolf, Paul L.
Partner: UNT Libraries Government Documents Department

Characterization of Dredged River Sediments in 10 Upland Disposal Sites of Alabama

Description: Abstract: The U.S. Bureau of Mines, Tuscaloosa Research Center, in cooperation with the U.S. Army Corps of Engineers under interagency Agreement No. 14-09-0078-1510, conducted a comprehensive sampling program of 10 upland disposal sites along the Alabama, Black Warrior, and Tombigbee River systems in Alabama. Samples from each site were characterized according to particle size, chemical analysis, mineralogical content, and potential end use. Additionally, samples were subjected to the Toxic Characteristic Leachate Procedure to determine the presence of potentially harmful heavy metals. Based on the results of these studies, each sample was determined to have properties amenable for use as aggregate in general-purpose portland cement concretes and certain asphalt concrete applications.
Date: 1995
Creator: Smith, C. W.
Partner: UNT Libraries Government Documents Department

Design and Construction of Retaining Dikes for Containment of Dredged Material: Final Report

Description: From abstract: "This report presents recommendations for proper investigation, design, and construction of retaining dikes to aid in ensuring that these dikes will be constructed with a minimum of problems and will serve their project requirements."
Date: August 1977
Creator: Hammer, David P. & Blackburn, Edward O.
Partner: UNT Libraries Government Documents Department

Assessment of Certain European Dredging Practices and Dredged Material Containment and Reclamation Methods

Description: This report documents the dredging practices, reclamation methods, and environmental effects of dredging in western Europe that were studied with emphasis on their relevance to the Dredge Material Research Program (DMRP).
Date: December 1978
Creator: d'Angremond, K.; Brakel, J.; Hoekstra, A. J.; Kleinbloesem, W. C. H.; Nederlof, L. & De Nekker, J.
Partner: UNT Libraries Government Documents Department

Density and Flow-Velocity Measurement Technology for Dredging Applications - Proof of Concept Study

Description: This technical letter report provides the results of all PNNL managed activities on this project, and contains a description of the data acquisition configuration and testing protocols, results and conclusions from this work. This technical letter report constitutes the final deliverable to be submitted to the client for this proof-of-concept study.
Date: October 1, 2004
Creator: Greenwood, Margaret S.; Tucker, Brian J. & Diaz, Aaron A.
Partner: UNT Libraries Government Documents Department

Hydrologic Considerations Associated with Dredging Spring Ponds in Wisconsin

Description: From purpose and scope: This report describes the hydrology of selected spring ponds and the effect that dredging has had on the ponds and their surrounding areas. The report emphasizes the water budgets for the ponds, discusses the hydrologic system which contains the ponds, and briefly describes water quality in the study area.
Date: June 1977
Creator: Rose, W. J.
Partner: UNT Libraries Government Documents Department

Trends in Polychlorinated Biphenyl Concentrations in Hudson River Water Five Years after Elimination of Point Sources

Description: From purpose and scope: The main purpose of this monitoring was to gather several years of data on PCB concentrations preparatory to removal of contaminated sediments by dredging, which was originally scheduled for the early 1980's. Plans for dredging and disposal of sediments are currently being reevaluated. This report examines the contribution and transport of PCB's (polychlorinated biphenyls) from various reaches of the Hudson River and the changes in PCB concentration since 1977, when discharge was terminated.
Date: 1983
Creator: Schroeder, Roy A. & Barnes, Charles R.
Partner: UNT Libraries Government Documents Department

Harbor Maintenance Trust Fund Expenditures

Description: In 1986, the Harbor Maintenance Tax (HMT) was enacted to fund U.S. Army Corps of Engineers' (USACE or the Corps) activities related to the routine operation and maintenance (O&M) of harbors, namely the dredging of harbor channels to their authorized depths and widths. Economic and equity issues related to HMT expenditures and collections are the main focus of this report. Before analyzing these issues, the report reviews the legislative history of the tax and legal challenges to it, discusses the advantages and disadvantages of alternative funding mechanisms, and describes the commercial context of current dredging activity. The last section identifies legislation related to harbor maintenance funding.
Date: January 10, 2011
Creator: Frittelli, John
Partner: UNT Libraries Government Documents Department

Harbor Maintenance Trust Fund Expenditures

Description: This report reviews the legislative history of the Harbor Maintenance Tax (HMT) and legal challenges to it, discusses the advantages and disadvantages of alternative funding mechanisms, and describes the commercial context of current dredging activity.
Date: January 25, 2010
Creator: Frittelli, John
Partner: UNT Libraries Government Documents Department

Archaeological Damage from Offshore Dredging: Recommendations for Pre-Operational Surveys and Mitigation During Dredging to Avoid Adverse Impacts: Technical Summary

Description: An investigation of the dredging practices of various countries, the impact of dredging on cultural artifacts/resources, and recommendations for mitigation of adverse impacts on cultural resources when dredging in the Gulf of Mexico.
Date: February 2004
Creator: Michel, Jacqueline; Watts, Gordon P.; Bairn, Rob & Kenny, Tim
Partner: UNT Libraries Government Documents Department

Model Study of Galveston Harbor Entrance, Texas: Hydraulic Model Investigation

Description: Report discussing the results of a series of tests in Galveston Bay to: "(a) develop plans for relocation and stabilization of the jetty channel on an alignment and at a depth suitable fro the safe passage of supertankers; (b) determine means for protecting the north jetty from the undermining action of tidal currents; (c) determine the shoaling characteristics of the relocated and deepened jetty (inner bar) channel and develop plans for minimizing shoaling in the relocated channel; and (d) determine the best locations for additional anchorage areas adjacent to the jetty channel or in Bolivar Roads" (p. ix).
Date: February 1969
Creator: Simmons, Henry B. & Boland, Robert A.
Partner: UNT Libraries Government Documents Department

Columbia River Estuary Hybrid Model Studies: Report 1, Verification of Hybrid Modeling of the Columbia River Mouth

Description: From abstract: The Columbia Hybrid Modeling System was applied to the mouth of the Columbia River estuary to evaluate alternatives for reducing navigation channel maintenance dredging.
Date: September 1983
Creator: McAnally, William H., Jr.; Brogdon, Noble J., Jr.; Letter, Joseph V., Jr.; Stewart, J. Phillip & Thomas, William A.
Partner: UNT Libraries Government Documents Department

Feasibility Study for Dyke Marsh Demonstration Area, Potomac River, Virginia

Description: Abstract: "Results of an investigation conducted to determine the engineering feasibility of using dredged material to expand an existing marshland area are presented. Dredged material obtained from maintenance dredging operations was found suitable for use as marsh substrate and site conditions were found adequate for construction of a containment facility. Factors evaluated in the study include site-specific feasibility of marsh expansion using dredged material, sizing of the demonstration area to meet water-quality and storage needs, preliminary design of the containment facility, procedures for the placement of dredged material, and identification of alternative construction methods, materials, and costs. Overall feasibility of marsh expansion was demonstrated and additional investigations were recommended for the project."
Date: November 1976
Creator: Palermo, Michael R. & Ziegler, Timothy W.
Partner: UNT Libraries Government Documents Department

Low-Ground-Pressure Construction Equipment for Use in Dredged Material Containment Area Operation and Maintenance, Performance Predictions Final Report

Description: This report summarizes collected data of soils from 45 sites meant to characterize the operational environments in dredged material containment areas in nine Corps of Engineer districts in the United States so that performance of low-ground-pressure vehicles operating in these areas could be predicted.
Date: August 1977
Creator: Willoughby, William E.
Partner: UNT Libraries Government Documents Department

Identification of Relevant Criteria and Survey of Potential Application Sites for Artificial Habitat Creation

Description: From abstract: "This report develops a process for the selection of areas appropriate for artificial marsh construction using dredged material. By application of the methodology set forth, Engineer District personnel will be able to efficiently identify such areas...The selection rationale is tested in Volume II by the choice and description of 50 prime candidate project areas, 10 within each of five major coastal geographical regions. From this compilation, 10 optimum project areas, two in each geographical region, were selected and described further using data gathered in project areas and from relevant Engineer Districts."
Date: October 1976
Creator: Coastal Zone Resources Corporation
Partner: UNT Libraries Government Documents Department

Chemical and Biological Characterization of Black Rock Harbor Dredged Material

Description: "This is one in a series of scientific reports documenting the findings of studies conducted under the Interagency Field Verifications of Testing and Predictive Methodologies for Dredged Material Disposal Alternatives (referred to at the Field Verification Program or FVP). This program is a comprehensive evaluation of environmental effects of dredged material disposal under conditions of upland and aquatic disposal and wetland creation."
Date: September 1985
Creator: Rogerson, Peter F.; Schimmel, Steven C. & Hoffman, Gerald
Partner: UNT Libraries Government Documents Department

Entrainment of Dungeness Crab in the Desdemona Shoals Reach of the Lower Columbia River Navigation Channel

Description: Proposed dredging of the Columbia River has raised concerns about related impacts on Dungeness crab in the Columbia River Estuary (CRE). This study follows two major efforts, sponsored by the Portland District of the U. S. Army Corps of Engineers (USACE) to quantify the number of crabs entrained by a hopper dredge working in the CRE. From June 2002 through September 2002, Pacific Northwest National Laboratory (PNNL) conducted direct measurements of crab entrainment in the CRE from the mouth of the Columbia River (MCR, river mile -3 to +3) upriver as far as Miller Sands (river mile 21 to 24). These studies constituted a major step in quantifying crab entrainment in the CRE, and allowed statistically bounded projections of adult equivalent loss (AEL) for Dungeness crab populations under a range of future construction dredging and maintenance dredging scenarios (Pearson et al. 2002, 2003). In 2004, PNNL performed additional measurements to improve estimates of crab entrainment at Desdemona Shoals and at Flavel Bar, a reach near Astoria that had not been adequately sampled in 2002 (Figure 1). The 2004 data were used to update the crab loss projections for channel construction to 43 ft MLLW. In addition, a correlation between bottom salinity and adult (age 2+ and 3+, >100 mm carapace width) crab entrainment was developed using 2002 data, and elaborated upon with the 2004 data. This crab salinity model was applied to forecasting seasonal (monthly) entrainment rates and AEL using seasonal variations in salinity (Pearson et al. 2005). In the previous studies, entrainment rates in Desdemona Shoals were more variable than in any of the other reaches. Pearson et al. (2005) concluded that ?the dynamics behind the variable entrainment rates at Desdemona Shoals are not fully understood,? as well as finding that juvenile crab entrainment was not significantly correlated with ...
Date: September 30, 2006
Creator: Pearson, Walter H.; Kohn, Nancy P. & Skalski, J. R.
Partner: UNT Libraries Government Documents Department

Observations of the Behavior and Distribution of Fish in Relation to the Columbia River Navigation Channel and Channel Maintenance Activities

Description: This report is a compilation of 7 studies conducted for the U.S. Army Corps of Engineers between 1995 and 1998 which used hydroacoustic methods to study the behavior of migrating salmon in response to navigation channel maintenance activities in the lower Columbia River near river mile 45. Differences between daytime and nighttime behavior and fish densities were noted. Comparisons were made of fish distribution across the river (in the channel, channel margin or near shore) and fish depth upstream and downstream of dikes, dredges, and pile driving areas.
Date: October 19, 2001
Creator: Carlson, Thomas J.; Ploskey, Gene R.; Johnson, R. L.; Mueller, Robert P.; Weiland, Mark A. & Johnson, P. N.
Partner: UNT Libraries Government Documents Department