The following is a list of pipeline accidents in the United States in 1978. It is one of several lists of U.S. pipeline accidents. See also: list of natural gas and oil production accidents in the United States. Incidents This is not a complete list of all pipeline accidents. For natural gas alone, the Pipeline and Hazardous Materials Safety Administration (PHMSA), a United States Department of Transportation agency, has collected data on more than 3,200 accidents deemed serious or significant since 1987. A "significant incident" results in any of the following consequences: Fatality or injury requiring in-patient hospitalization. $50,000 or more in total costs, measured in 1984 dollars. Liquid releases of five or more barrels (42 US gal/barrel). Releases resulting in an unintentional fire or explosion. PHMSA and the National Transportation Safety Board (NTSB) post-incident data and results of investigations into accidents involving pipelines that carry a variety of products, including natural gas, oil, diesel fuel, gasoline, kerosene, jet fuel, carbon dioxide, and other substances. Occasionally pipelines are re-purposed to carry different products. The following incidents occurred during 1978: On January 12, a propane pipeline exploded & burned at a pump station, near Conway, Kansas, forcing a nearby highway to be shutdown. Earth movement was suspected in causing a gas transmission pipeline to rupture and burn near Stevenson, Washington on January 23. There were no injuries. On January 25, a 6-inch gas main ruptured at a weld in Stoughton, Massachusetts, causing gas to migrate under pavement & frozen earth into a building. The building later exploded, killing one person. On February 10, a front end loader clearing snow hit a 1-inch gas riser line in Sullivan, Indiana. The gas later exploded in the building, killing 4 people, and destroying the building. On February 15, a gas pipeline being tested with compressed air exploded at a seam on the pipe in Cincinnati, Ohio, injuring 8. A portion of the Trans-Alaska Pipeline System pipeline east of Fairbanks, Alaska was ruptured by an explosive device on February 15. Crude oil spilled in a diameter spot. On February 26, a 16-inch Cities Service Gas pipeline ruptured near Lecompton, Kansas, causing natural gas shortages in the area. An improperly plugged gas line leaked into a service vault in Oklahoma City, Oklahoma at a shopping center, overcoming 5 gas company workers on March 29. Four of the repairmen died of asphyxiation. None of the repair crew