The Milwaukee Journal Sentinel has an excellent update on the status of the carp-fighting electric fence being constructed in the Chicago Sanitary and Ship Canal. The underwater barrier to carp entering the Great Lakes has been under construction for several years. Now the Army Corps of Engineers is set to turn it on, but at a lower voltage per square inch than would be needed to keep smaller fish from passing through. At issue is the safety of barges passing through the canal, and the risk of hurting anyone who has the misfortune of falling overboard.
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