by Jonathan Weaver Next month’s Riverbration event in Kittanning Riverfront Park is proving not to be just about powerboat racing. As well as races Saturday, August 20, and Sunday, August 21, the park in downtown Kittanning is scheduled to showcase acoustic guitarists, two boat parades and other concert bands and small ensembles. Alle-Kiski Strong Chamber Vice-President of Events Lynda Pozzuto estimated about 40 vendors from across the United States will also spread through t