We determined that the probable cause of this accident was Orion Marine Group’s inadequate planning and risk management processes, which failed to identify the proximity of their dredging operation to Enterprise Products’ pipeline TX219 and resulted in the absence of effective controls to prevent the dredge’s cutterhead from striking the pipeline. Watch the board meeting on the NTSB YouTube Channel The cost of physical damage to the EPIC facility was $120,000. The cost of pipeline damage was $2.09 million. Waymon Boyd, valued at $9.48 million, was a total loss. Six crewmembers aboard the dredge were injured, one of whom later died from his injuries. Waymon Boyd and one on an adjacent anchor barge died in the explosion and fire. A total of 18 personnel employed by Orion Marine Group were working or resting on the dredge and assist boats (tender boats, anchor barges, booster barges, and a supply barge) on the day of the accident. Fire damaged the vessel and surrounding shoreline. Shortly thereafter, propane gas engulfed the vessel and an explosion occurred. A geyser of propane gas and water erupted adjacent to the vessel. Waymon Boyd struck a submerged 16-inch liquid propane pipeline during dredging operations in Corpus Christi, Texas. On August 21, 2020, about 0802 central daylight time, the US-flagged dredge
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