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Development of priority based statewide scour monitoring systems in New England (PDF file)
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    A project was funded by the New England Transportation Consortium to research the creation of a scour monitoring system that would assist in the allocation of resources during potentially destructive flood events in New England. Emphasis was placed upon the adoption and use of existing tools and infrastructure to accomplish these tasks. A web-based approach using a spatial decision support system (SDSS) would be adopted for development of the monitoring system. A SDSS is a platform independent software application that can be used as both a decision and research tool. The versatility of the model enables discretion to be used, which emphasizes the importance of engineering judgment with respect to the analytical method used to evaluate scour potential in this system. Potential components of the system are identified and reviewed, such as existing scour analyses, instrumentation, and automated gages. Internet websites are discussed in detail to familiarize DOTs with sources of available real-time weather products pertinent to the assessment of scour conditions. A GIS is created for each New England state to geographically integrate bridge, dam, and gage infrastructure in order to recognize the relation between them. Various scour models are presented along with methods for determining hydraulic input parameters to be entered into the models. The framework of a conceptual scour monitoring system is outlined and a potential scenario is used to illustrate the operation of the monitoring system for real-time warning and assessment of scour conditions. The sum result of these tasks was the development of a prototype real-time scour monitoring and assessment tool that integrated web-based assessment tools, geographic information systems, and Internet resources.
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