Does the river control structure require constant adjustment? What I really want to know is, will the river move shortly after the zombie apocalypse kills the operators?,(reply>), ninjafruitchilled it does require constant human presents. They only adjust as the river rises to divert the pressure to the atachafayla, though the morganza spillway thag is right south of the structure has only opened once in its time, the other flood gates down towards New Orleans see more action if diverting the flow. Without humans no one would be there to open the gates or adjusted the flood structure. Then come spring when the ice melts up north and the water heads down and we go into high water, no one would be there to open the structure so the water would breach the levees down below Baton Rouge soon. If not over run the flood structure.