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Risk-Based Planning and Management of Maintenance Dredging

by L. Leigh Skaggs,
David A. Moser,



Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water

Abstract:

The U.S. Army Corps of Engineers (Corps) Institute for Water Resources (IWR) is developing and applying a risk-based approach to address maintenance dredging cost, reliability, and budgetary issues. Using data from the Lower Mississippi River for a case study application, the ongoing research has focused on the development of the Reliability-Based Dynamic Dredging Decision (RBD?) Model. The RBD? model is an optimization model that incorporates uncertain information about predicted navigation channel dimensions and dredging requirements to estimate channel reliability and dredging costs. An interactive decision support software tool has also been developed to accompany the RBD? optimization model.

Subject Headings: Optimization models | Dredging | Risk management | Maintenance and operation | Decision support systems | Benefit cost ratios | Water resources | Mississippi River

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