South Skunk - Story City to Ames (PnP, 8 miles or 19 miles) (IA)
Low, but can offer some play.
Hannum/Coon's dam (in a state of deterioration) is the site of at least two drownings.
This should not be considered a play spot! Recirculating current in this area should be avoided! It is best portaged on river right.
(The property in this area appears to be all privately held.) This is the location of the gauge cited for this river.
Photo and info available at Iowa Whitewater Org US Filter Dam.