The 275-million dollar plan by the U.S. Army Corps of Engineers to keep Asian carp out of the Great Lakes includes using water jets and underwater noise.
The long-delayed draft was issued yesterday after being shelved by the Trump administration before its scheduled release in February.
The Corps wants the new equipment installed at a dam near Joliet, Illinois to keep the invasive fish out of the lakes.
The National Wildlife Federation calls the plan promising, saying their initial reaction is that the options "could possibly reduce the chance that an Asian carp gets through at each stage."