(Hubbard County, MN) — A worker on a section of the Enbridge Line 3 project is recovering after being rescued over the weekend. Authorities say the operator became trapped inside heavy machinery when it rolled into the water in Hubbard County Saturday. Nearby workers had to break a beaver dam in order to lower the water level inside of the vehicle cab. The operator was taken to a hospital and treated for hypothermia before being released.   Enbridge officials say they are investigating the incident.