The Panama Canal is a full century old, but that doesn’t mean it still can’t grow. The 48-mile-long landmark that cuts across “the backbone of the Western Hemisphere” is going through the final year of a massive expansion. When work is completed in 2015, new locks will allow giant “New Panamax” class of container ships and supertankers through and boost the canal’s capacity by half.
The $5-billion project has also energized American, ports from Miami to Boston. They have invested another billion in dredging their harbors and building up infrastructure to handle plus-size vessels carrying everything from neckties to natural gas.
When the Panama Canal opened 100 years ago this summer, it relied on the world’s largest electrical system, built by GE. The canal is still using GE-powered tugs to move ships through its locks, and more of the boats are under construction.
This Cheoy Lee Z-Tech 6500 tug built for the Panama Canal Authority is powered by two GE 2,965-horsepower engines. Top Image: The Panama Canal is going through a major expansion that will double the canal’s capacity. Credit: Canal de Panamá
In 1914, the canal used 500 GE motors to operate the locks, with 500 more installed elsewhere in the system. GE also built the power plants that provided the canal with electricity and designed the centralized control equipment for the locks.
This drawing shows the GE-designed centralized control board for operating locks and electric mules. The control room is on the left in the attic. Credit: Schenectady Museum of Innovation and Science
One historian noted that GE “produced about half the electrical equipment needed during construction and virtually all of the permanent motors, relays, switches, wiring and generating equipment. They also built the original locks towing locomotives and all of the lighting.”
Some 60,000 workers used 25 million pounds of dynamite to cut through the “backbone of the Western Hemisphere,” as they referred to the Isthmus of Panama. Credit: Schenectady Museum of Innovation and Science
Those 40 electric towing locomotives were made in Schenectady, NY. Since ships were not permitted to pass through the locks under their own power, these “lock mules” rode on rails next to the canal and pulled them through the locks. Custom gears and electrical design allowed them to run as slow as 1 mph, the speed required for gently tugging large vessels.
A Schenectady “mule” (on the right) pulls a ship through a set of Panama Canal locks. Credit: Schenectady Museum of Innovation and Science
Management expert Tom Kendrick says that supplying the Panama Canal with electrical equipment was GE’s first large government contract. “Such a large-scale collaboration of private and public organizations was unknown prior to this time,” Kendrick writes. “The relationship used by [the Panama Canal construction supervisor George] Goethals and GE served as the model for the Manhattan Project during World War II and for countless other modern projects in the United States and elsewhere.”
Mules had to ride up a steep incline to the top of the gates of the lock. Credit: Schenectady Museum of Innovation and Science
Today, the canal is still using a fleet of tugs powered by 12-cylinder marine diesel engines made by GE Transportation. In 2012, the Panama Canal Authority ordered 14 new tugs with GE engines to handle the boom in traffic after the canal expansion is finished in 2015.
The collaboration between the U.S. government, which led the construction, and GE served as a model for future public-private partnerships. Credit: Schenectady Museum of Innovation and Science