Annual Report of the Isthmian Canal Commission for the Year Ending ..., Parte 2

Ancon approach wall April Atlantic division average Back fill Balboa barges bottom breakwater caisson canal prism Canal Zone cent central division Chagres River chamber channel charge Cocoli Colon completed construction contract contractor cranes Cristobal cubic yards Culebra Cut culvert division engineer dredges dry fill dumps east Electric elevation emergency dams erection excavation fiscal Foundry Gatun Dam Gatun Lake Gatun Locks girders handled hydraulic fill inches installed insulation Isthmian Canal Commission Isthmus January July June 30 linear feet lock gates lower lock machinery Maintenance of equipment March Mindi motors Nombre de Dios operation Pacific division Panama Railroad Pedro Miguel Locks piles pipe placed Plant arbitrary plates Porto Bello pumps quarry reenforced repairs rising stem gate rivets sand sanitary slides slope spillway steam shovels steel stem gate valves tests tion Toro Point total amount towers track trestle United States Army unloaded yards of concrete yards of earth