Fish Guidance Systems crew installs a section of the bio acoustic fish fence into the water Oct. 9, 2019 below Barkley Lock in Grand Rivers, Ky. The BAFF is expected to be operational in a few weeks, and a field trial is set to test the effectiveness. The project involves multiple agencies and partners, including U.S. Fish and Wildlife Service, Kentucky Department of Fish and Wildlife Resources, U.S. Army Corps of Engineers Nashville District, U.S. Geological Survey and Tennessee Wildlife Resources Agency.