Panama Canal
France began work on the canal in 1881, but stopped due to engineering problems and a high worker mortality rate. The United States took over the project in 1904 and opened the canal on August 15, 1914. One of the largest and most difficult engineering projects ever undertaken, the Panama Canal shortcut greatly reduced the time for ships to travel between the Atlantic and Pacific Oceans, enabling them to avoid the lengthy, hazardous Cape Horn route around the southernmost tip of South America via the Drake Passage or Strait of Magellan.
Panama Canal Railway
New technology not available in the 1850s allowed enormous earth cuts and fills to be used on the new railroad that were many times larger than those done in the original 1851–55 construction. The rebuilt, much improved, and often rerouted Panama Railway continued alongside the new canal and across Gatun Lake. The railroad was completed in its final configuration in 1912, two years before the canal, at a cost of $9 million—$1 million more than the original.