On Wednesday, July 7, 2010, the empty 250-foot-long sludge barge The Resource, being towed alongside the 78.9-foot-long tugboat Caribbean Sea, collided with the anchored 33-foot-long amphibious passenger vehicle DUKW 34 in the Delaware River at Philadelphia, Pennsylvania. DUKW 34 carried 35 passengers and 2 crewmembers. On board the Caribbean Sea were five crewmembers. As a result of the collision, DUKW 34 sank in about 55 feet of water. Two passengers were fatally injured, and 26 passengers suffered minor injuries. No one on the Caribbean Sea was injured. Damage to DUKW 34 totaled $130,470. Damage to the barge was minimal; no repairs were made.
The probable cause of this accident was the failure of the mate of the Caribbean Sea to maintain a proper lookout due to(1) his decision to operate the vessel from the lower wheelhouse, which was contrary to expectations and to prudent seamanship, and (2) distraction and inattentiveness as a result of his repeated personal use of his cell phone and company laptop computer while he was solely responsible for navigating the vessel. Contributing to the accident was the failure of Ride The Ducks International maintenance personnel to ensure that DUKW 34's surge tank pressure cap was securely in place before allowing the vehicle to return to passenger service on the morning of the accident, and the failure of the DUKW 34 master to take actions appropriate to the risk of anchoring his vessel in an active navigation channel.
As a result of this accident investigation, we made safety recommendations to the U.S. Coast Guard, K-Sea Transportation Partners L.P., Ride The Ducks International, LLC, and The American Waterways Operators.