VI DOCUMENTARY HISTORY OF THE FLORIDA CANAL PaYSICAL--ontinued 6. Excavation: (a) Rock ---..-....--..--.................cubic yards.. 170,000,000 (b) Wet and dry earth-- ----.--------- .--- do-. 401,000,000 (c) Total excavation --.................... do.. 571,000, 000 7. Time required to complete ........... -----.-... years.. 5 Present status (June 1, 1936): Lngth of central out excavated (approximate)..... -mile-s. 10 Yrde removed (approximate) --........ ubic yards.. 17,000,000 Bridges: Piers o first bridge substantially complete. Other structures: Headquarters and other camps complete. Other work: Clearing on central cut section complete. Expended to date (approximate)---------------.................... 5,000,000 Men now employed (approximate) ---------------------- 6,000