The runnable range is a wild SWAG and should be used with caution. If you run this, please add a comment or report, so that we can develop a correlation.
Just upstream of the put-in, a dam straddles the river behind Gibbs Butcher Block. Put-in is below this dam. (Note: Photo is at 900 cfs, and shows the rocks in various areas of the landing zone, as well as showing how uniform the boil-line is.