Expanded Panama Canal locks require a new look for old equipment

When it comes to transiting the new locks on the Panama Canal, not all ships are created equal.

In the original configuration of the waterway, small locomotives are used to pull ships through the locks. In the expanded section of the canal, tugboats are used to move the vessels along.

In both situations, lines from the train or tug run through openings in the ship’s hull called chocks and then are secured to bollards.

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Train at the Panama Canal; photo courtesy the Panama Canal Authority.

But those chocks and bollards have to be able to stand up to the forces experienced during a towing operation. Plus, they need to be in the right spots on the ship.

“Every ship has chocks and bollards,” a shipbroker with maritime experience said. “But they might not be strong enough to be pulled by the tugs or might not have been in the right position.”

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Tugboat at the Panama Canal; photo courtesy the Panama Canal Authority.

According to Capt. Guillermo Manfredo, executive manager for operations/canal operations captain, up to four tugboats are used to maneuver ships into the locks. Once in the locks, one tug is on the bow and one or two are on the stern,...