An outdoor concert series hosted in rural Kalona continues tomorrow. Friends of Bunker Mill Bridge is holding Almost Acoustic Tuesday and Second Saturday concerts throughout the summer and into the fall. Locally and nationally known artists perform on the approach of the bridge built in 1887. According to executive director of the friends group, Scott Allen, money raised during these concerts goes toward the restoration of the bridge, which he says is over half way done. Alvin Geigley and the Gravel Scratchers is set to perform at 6:30 p.m.