injuries or major property damage. The pipeline failed at a sleeve over a wrinkle bend installed in 1946. On December 3, a Williams Companies gas transmission pipeline exploded and burned in Marengo County, Alabama. A 47-foot section of the pipe was hurled more than 200 feet from the failure area. The gas burned for several hours, and a nearby pipeline was damaged. There were no injuries, or serious property damage. External corrosion was the cause of the failure, due to issues with the pipeline coating, the cathodic protection level, and the local soil corrosiveness. On December 6, explosions and fire erupted at a natural gas pipeline compressor station in Sublette County, Wyoming. Two workers were injured. On December 10, a landowner using a bulldozer hit an 8-inch and a 12-inch petroleum pipelines near Nemaha, Nebraska, rupturing both lines. The spill size was estimated to be 119,000 gallons of gasoline, jet fuel, and diesel fuel. Some of the fuel flowed into a creek leading into Jasper Creek. There were questions about the depth of soil coverage for this pipeline. A 42-inch natural gas transmission pipeline failed and ignited at a valve on December 10 in Cache County, Utah. On December 27, controllers for Enterprise Products received an alarm, for a leak on an LPG pipeline. The leak location was found in Loving County, Texas. Repair crew excavated the area, and found a full girth weld failure. During the pipeline repair, a flash fire involving residual pipeline product in the soil occurred, injuring 3 employees, one of whom required in-patient hospitalization. The rupture was attributed to the complete circumferential separation of an acetylene girth weld dating to 1928, and the flash fire was attributed to operator error. References Lists of pipeline accidents in the United States 2011 disasters in the United States