Report/Paper Numbers: Contract Rpt D-76-4 Final Rpt.A mathematical model of the transport of dredging-induced turbidity in the far field was developed in this study.

Subject Areas: Education and Training Finance Geotechnology Highways Marine Transportation Pipelines Terminals and Facilities.TRT Terms: Barges Costs Cutting tools Dredging Inspection Pipelines Soil suction Specifications Training Turbidity.Huston (John), Incorporated Corpus Christi, TX Where turbidity is a problem, dredging should be accomplished when natural background levels of turbidity are high. Contracts should be written to include smaller dredges. Contracts should clearly and uniformly specify requirements for turbidity-reduction measures and measurements. Consideration should be given to a nationwide school or short courses where dredge personnel could obtain basic technical knowledge of dredging. More training is required for inspectors, whether CE or private-company personnel. More CE supervision of dredging operations needs to be implemented.

In addition to applying good dredging techniques to reduce turbidity, better inspection is needed on Corps of Engineers (CE) and CE-related projects. Dredge-induced turbidity is normally apparent only in the immediate vicinity of the dredge plant and the levels of this turbidity are not usually as high as those created by open-water disposal of the dredged material. Other techniques for reducing dredge-induced turbidity tend to increase dredging costs and should be used only when necessary. When these techniques are consistently applied, not only will dredge-induced turbidity be reduced, but economical operation will prevail in most instances. These techniques consist principally of good dredging procedures already known but not always followed by dredging contractors and their personnel. Techniques for reducing turbidity associated with present dredging procedures and operations fall principally in the categories of the cutter, ladder, suction, hull, pipeline, connections, barges, tenders, personnel, inspection, contracts, plans, and specifications. TECHNIQUES FOR REDUCING TURBIDITY ASSOCIATED WITH PRESENT DREDGING PROCEDURES AND OPERATIONS

Dredging-Induced Turbidity definition