RAPID CITY - Authorities say a man whose foot was severed by a boat propeller on Sheridan Lake is in good condition in a Rapid City hospital.

The injured man was identified as 25-year-old Eric Monson of Rapid City. Officers say one of Monson's feet was severed just above the ankle Saturday when a boat apparently got too close while he was swimming.

The driver of the boat, 25-year-old David Hoffman of Rapid City, has been charged with boating while intoxicated and vehicular battery.