110 DOCUMENTARY HISTORY OF THE FLORIDA CANAL A comparison of estimates of cost of Atlantitoulf ship canal by special Army board, Public Works Administration, and board of review Special Army board Public Works Administration I Item Item no. i Quantity Unitprice Cost Quantity Unitprice Cost Excavation-........ Purchase of land--. Cluaring land ...... Locks and auxiliary works ........--- Water supply or control works-..- Bridges frrs and highway and rail- road relocation- . Aids to navigation. Turning basins, etc. Contractor's profit. Net construc- tion cost.... Engineering, super- vision, and con- tingencies ....--- Total con- struction cost, exclu- sive of in- terest dur- ing con- struction. .. I. Cost, exclusive of costs as- sumed to be chareable to local interests_ II. Cost, including interest dur- ing construe- tion (based on item I)........- Cubic lard I426,083,000 -3-- -- 3 $ 1984 ---------. ---------- ---------- 84, 550, 00 2,535,000 2,825,000 50909.000 Cubic yards S415,309,000 2 '$0.1065 ---------- ---------- S..... .. 11, 00 000 ........................ ---.1--- ,35000 .... ............. 0 ---- ----- -------- 2,560000 1w... .. ...... () () -------------------------- +10% ---- --- --- -- --- --- 1K6,473, 000 - - - -- - - - $44 21, 150 3,054,000 2,181, 00 21,861,800 1,862,000 7,015,000 415,050 593,600 8,600,000 89,814, 100 ----... ......- 15% 22,354000 .... ......----- 19% 16,385,900 178,827,000 ........................ 100,200,000 (7,445,000) ..... ............. (None) 171,382,000 ..--.... .......... 106,200,000 192,000,000 115,000,000 Board of review ' item Item Quantity Unit price Cost CMm gards 1 Excavation. .............. .......... ....-- ... 570,75,000 t 0.197 $111,900,000 2 Purebse of I land ..... ... ................ ........................ 3000000 3 Clelaand.....------------------------------------------------------------100........................000........................ 1,300000 SLcks and auxiliary works--------.-------------------.................. None .------- None 5 Water supply or control works--..---....-...-------......-.. .............. 000 000 SBridgs, 1ris, and highway and railroad relocation...-...-..................-... 7,204000' 7 Aids to navigation-....................................... .-..........-- -.......... 1,400,000 8 Turning basns etc...-----... ------..--- ---.. --.... ------------..... -- 1,400.000 9 Contractor's profit-..----.---..--.... ---------- () () .............. 10 Net construction cost.---.... ------.---. -----...----------.... 127,200,000 11 Engineering, supervision, and contingencies --..---.-----. -----15% 19,00, 000 12 Total construction cost, exclusive of interest during construction...-- ...... ................ .......... 146,200,000 I. Cost, exclusive of costs assumed to be chargeable to local interests -....--...--...- ..-- ...-....-- .............................. (350 000) S142, 700, 000 II. Cost, including interest during construction (based on item I) ).----.--------------- --..... ( (7) 160 004000 S30-foot lock canal, with varying widths. 2 30-oot sea-level canal, with varying widths. 3 Wehhted average for all classes of excavation. SIncluded in unit price. I Based on $149,0s8000, which is cost exclusive of land and damages and certain bridge*. Based on 26,000,0 which is exclusive of contractor's profit and land. 7 6yeer period at 4 percent. 4-year period at 4.14 percent.