V1 was traveling west parallel with the dam @ Saylorville Lake and pulling a tube with 2 passengers on the tube. V2 was traveling south and cut right behind V1 and didn't see the tube being pulled.  V2 ran over the tube on the south side of the tube & impacted victim 1 causing a concussion and broken elbow.  V2 was cited for reckless operation of a watercraft.  Both individuals on the tube were wearing their life jackets. Operator of V2 was also wearing a life jacket.
POLK CITY