A double-tanker semitractor hauling thousands of gallons of milk rolled while turning at a Bluff Street intersection, breaking open one of the tanks and sending milk pouring down the roadway Sunday morning. Shortly after 8 a.m. officers and firefighters were dispatched to the rollover on Red Hills Parkway at the Bluff Street-Snow Canyon Parkway intersection, St. George Police Sgt. Spencer Holmes said. Upon arrival, responders found the semi on its side with both tankers resting on a traffic control light and partially blocking four lanes in the intersection, with milk spilling from the front tanker. The driver was uninjured. Officers closed multiple lanes initially and began directing traffic away from the intersection.