Techniques for minimizing sedimentation rates include the installation of harbor enclosures to exclude local waters having high concentrations of suspended sediment, configuring and orienting facilities in open waters to cause minimum rates of aggregation of suspended particles and minimum sheltering of adjacent navigable waters, and designing bed cuts for channels and wharf approaches to maintain scouring shear stresses during the strength of tidal flows. The minimum sedimentation rates obtained, will depend on the location of the facilities in an estuary, their configuration and orientation, the amount and characteristics of sediment supplied to the estuary, the hydrology of the watershed, and tides, winds, and estuary configuration.
Knowledge of sediment types, transport processes, and circulation patterns available today can be effectively applied to the design, installation, and operation of new facilities that will have minimum sedimentation rates or minimum maintenance dredging costs. Is knowledge of sediment…adequate to support the design and installation of navigational facilities for minimal maintenance dredging? The information developed during the symposium and the committee’s deliberations led to the following responses to the charges to the committee:
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