"The White River, it's said, never gives up her dead, when the floods of the summer come early..."
Well, actually, it's not the White River proper, just the little overflow channel that cuts off the big oxbow of the main channel in Broad Ripple. The Monon Trail crosses it with a bridge and just upstream is the much larger bridge that carries Westfield Boulevard. Upstream from that is a weir dam.
The recent heavy rains had left a big logjam spanning two piers of the Monon Trail bridge, and something bright red and white was lodged in one end of it.