Bullhead City officials said last weekend's regatta was relatively incident free.
Out of the estimated 24,300 people who attended Saturday's float down the Colorado River, just eight were arrested. That number includes four people arrested for assault, three for disorderly conduct and one for driving under the influence.
BHC Police spokeswoman Emily Fromelt said a total of 75 people were treated at the first-aid tent at Rotary Park, including 50 people treated for alcohol, heat and laceration-related injuries and 25 people treated for minor injuries such as bandages and eye flushes.
An additional 40 people were treated at local hospitals for injuries related to alcohol, heat, exhaustion and dehydration. Fromelt said 1,600 bottles of water were handed out on Saturday.
BHC Public Information Officer Steve Johnson said the sixth annual event infused an estimated $15 million into the local economy.