By JOHN FLESHER, AP Environmental Writer
TRAVERSE CITY, Mich. (AP) -- The U.S. Army Corps of Engineers is recommending a mixture of technologies, including loud noises and water jets at a crucial site in Illinois to prevent Asian carp from reaching the Great Lakes.
The corps released a draft report Monday analyzing options for upgrading the Brandon Road Lock and Dam near Joliet. The complex is on the Des Plaines River a few miles downstream from electric barriers intended to prevent fish in the Mississippi River watershed from reaching Lake Michigan through Chicago-area waterways.
Brandon Road is considered a bottleneck where new structures or technologies could strengthen defenses against Asian carp. Scientists said if the carp reach the Great Lakes, they could devastate a $7 billion fishing industry by crowding out native species.
The report also suggests installing another electric barrier.