French Steam Dredge
Wikipedia writes: The French effort lowered the summit of the Culebra Cut along the canal route 5 meters (17 ft), from 64 meters (210 ft) above sea level to 59 metres (193 ft), over a relatively narrow width. In all, it was estimated that 22,713,396 m3 (29,708,000 cu yd) of excavation were of direct use to the Americans, valued at $25,389,240, along with equipment and surveys valued at $17,410,586.
Back To Historic Panama Canal Documents
Panama Canal History Museum
Photos, Documents, Books and Stories from the Panamacanal Construction.