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On October 20-21, 2015, the U.S. Geological Survey conducted a dye study on the Des Plaines River at Brandon Road Lock and Dam (BRLD) near Rockdale, Illinois. The purpose of this dye study was to assess the mixing, advection, and dispersion of dye within the BRLD lock chamber and in the approach channel downstream. These data will inform designs of potential strategies for preventing upstream transport of invasive Asian carp through the BRLD. Dye was injected into the intakes for the lock chamber at the start of the filling process. The dye was injected through grates atop the intake channels on both sides of the lock. Injection began at 10:24 on October 20, 2015, and ended at 10:30 on October 20, 2015. A total...
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