Tropical storm Allison in 1992 dislodged many hundreds of acres of floating vegetation and hydrilla from many from the St. Johns River headwater lakes. Masses of hydrilla and floating vegetation have been carried downstream and jammed versus the U.S. Highway 192 bridge. Plants had been compressed into a good mass https://juliuslesiv.blog4youth.com/34155581/rivers-florida-things-to-know-before-you-buy