History
When the Panama Canal was completed in 1914, it divided the country of Panama as well as North and South America except for a small service bridge at the Gatun Locks. In 1942, a small service swing bridge was built at the Miraflores Locks. Both of these bridges were quite small and can only be used when the locks gates are closed. Therefore as traffic increased, the small service bridges and ferries could not handle the volume of traffic. Finally in 1959, the United States