The following is a list of pipeline accidents in the United States in 1977. 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 1977: On January 2, a gas pipeline ruptured and burned near Nursery, Texas. Some power poles were destroyed, but there were no injuries. On January 5, in Fairview, New Jersey, a circumferential break on a 6-inch cast iron gas pipe occurred. The released gas then migrated under frozen soil & a sidewalk, into an area under the floor of a building. The gas later was ignited by an unknown source, causing an explosion that killed 1 person, injured 13 others, and destroyed 3 buildings. In Baltimore, Maryland on January 13, a 4-inch cast iron gas line suffered a circumferential break. The gas migrated under frozen soil and pavement into nearby rowhouses, and was likely ignited by an oil burned motor. One person was killed. On January 18, an 18-inch steel gas main failed and leaked into an electrical and telephone conduit in New Bedford, Massachusetts. Three explosions followed, destroying 5 buildings, and breaking windows nearby. Improper pipeline construction techniques were the cause of the failure. There were no injuries. A gas pipeline exploded and burned in Stockton, California on February 4, four days after another gas pipeline fire nearby. There were no injuries. On February 22, an explosion occurred on a gas pipeline being repaired, near Munday, Texas. 2 of the crew were killed, and another injured. On May 20, fire broke