This report discusses the accident in which a 5-ton spud (mooring shaft) unintentionally released from the uninspected construction barge Athena 106 and struck a natural gas pipeline buried in West Cote Blanche Bay, Louisiana. The Athena 106 and another barge were both being pushed by the towing vessel Miss Megan. The gas ignited and created a fireball that engulfed the Miss Megan and both barges. Five people were killed and two survived; one barge worker was officially listed as missing as of the report date. Damages were estimated at $150,000 for the Athena 106 and $650,000 for the Miss Megan. The estimated value of the released natural gas was $6,800; replacing the ruptured pipeline cost an estimated $800,000. The National Transportation Safety Board identified safety issues during its accident investigation and made recommendations to the Occupational Safety and Health Administration, the U.S. Coast Guard, Athena Construction (Athena 106 owner/operator), and Central Boat Rentals (Miss Megan owner/operator).