The Panama Canal

1½ miles 45 feet actually American amount of water approach walls Balboa Bas Obispo Board of Consulting Bohio breakwater built Canal Company capacity carried cars Chagres River channel concrete cost cubic feet cubic yards Culebra Cut culvert depth developed discharge dredging dry season dump elevation enterprise estimated excavation feet above sea-level feet long feet per second flow French canal Gatun Dam Gatun Lake Gatun Locks Gulf of Panama Isthmian Canal Isthmian Canal Commission Isthmus Lake Nicaragua length Lesseps Limon Bay lock canal lock walls material ment Miraflores Lake Miraflores Locks Nicaragua route operating Pacific side Panama Canal Panama Railroad Panama route pass Photo by Underwood Porto Bello prevent problem rainy season rock sea-level canal sea-level section seepage ships shovels silt slides slopes spillway steam-shovel stone storage tion tons Toro Point track traffic train trestle tunnel United valley valves vessels width yellow fever