Cruddy water

Look out for me, oh muddy water
Your mysteries are deep and wide
And I got a need for going some place
And I got a need to climb upon your back and ride.
(from the Broadway musical
Big River: the Adventures of Huckleberry Finn)

Apparently it's time for people to look out for the Mississippi River, rather than vice versa. The Illinois and Ohio rivers are getting help, too. First you care and then you do something about it, I guess.