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Dispersal Barrier Efficacy Study INTERIM IIIA – Fish Dispersal Deterrents, Illinois & Chicago Area Waterways Risk Reduction Study and Integrated Environmental Assessment



Act 2007, Section 3061(b)(1)(D), to conduct a study of a range of options or technologies for reducing impacts of hazards that may reduce the efficacy of the Electrical Dispersal Barriers located on the Chicago Sanitary and Ship Canal (CSSC), hereafter referred to as the Efficacy Study. The Electrical Dispersal Barriers were designed to reduce the risk of inter-basin transfer of fish from the Mississippi River and Great Lakes drainage basins via the CSSC. It consists of three electrical barriers, Barrier I, IIA and IIB that comprise the Electrical Dispersal Barrier Project. Barriers I and IIA are constructed and in operation. Construction of Barrier IIB is scheduled to be completed in 2010. As Asian carp have migrated steadily northward up the Illinois River, the threat of these species gaining access to Lake Michigan and the rest of the Great Lakes has become generally recognized by many in the environmental community and among numerous federal, state and local government agencies as having potentially significant ecological and economic consequences, although many uncertainties remain about the ability of Asian carp to establish in the Chicago Area Waterways (CAWS) and Great Lakes. These issues have been the topic of a number of recent Congressional hearings and the subject of a Supreme Court action

Year: 2011
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