size and drop to flip tubers, while there is really nothing of that size on the Provo between the put-in below the dam and Vivian Park. Is that where you intend to float?

As a heads-up, the sketchiest parts of the Provo (and "sketchy" is too strong a term) are going under the bridge about a mile below the start, and steering clear of a partially submerged concrete wall in the residential strip. Man, that's about it. Piece of cake, otherwise.