Construction of the Panama Canal. A view of the Panama Canal constructed by U.S. Army engineers. The engineers work at the Culebra Cut. A railroad train on tracks. Smoke comes out. A crane lifts up rubble. Two engineers stand and one of them holds a shovel in his hands. The engineers work at Gold Hill. They use a hydraulic excavation cylinder and spray. A view of the Culebra Cut before the water entered. A boat underway in the Culebra Cut. A spillway at Gatun Lake. Water is controlled by the spillway. A sign reads 'Gatun Locks'. A liner in Gatun Locks. People at the dock along the Panama Canal. A view of Panama City, with people and traffic on the streets. Buildings on a street of Panama City. Mountains in the background.