'2,000 cubic yards of excavation of earth for foundations on shores, at 16 cents $ 320 200 cubic yards of excavation of rock for foundations on shore, at $3 600 7 coffer dams, including pumping, excavation of pits, and earth filling, as per detailed estimate in report of December, - 1837, at $13,000 $91,000 Add for extra excavation of mud, and extra sheeting of frame 13,000 $104,000 $104,920 500 tracing piles, for foundations of land piers not on rock, at $5 2,500 1,700 cubic yards of concrete masonry, at $6 10,200 10,600 cubic yards of masonry in large piers, at $20 212,000 3,800 cul^ic yards of masonry in small piers, at $15 57,000

269,000 490 cubic yards of water table and cornice on piers, at $30 14,700 3,020 cubic yards of large arches, at $30 90,600 1,020 cubic yards of small arches, at $25 25,500

116,100 1,060 cubic yards of pilasters, at $15 15,900 - 3,150 cubic yards of exterior spandrils, at $13 40,950 3,650 cubic" yards of interior spandrils, and hance walls, at 21,900

62,850 250 cubic yards of flagging, to connect hance walls, at 2,000

64,850 1,300 cubic yards of parapet walls, at $12 15,600 520 cubic yards of brick walls and wells, at $12 6,240 250 cubic yards of coping on parapets, at $30 7,500

29,340 4,400 cubic yards of foundation walls at ends, at $2 8,800 400 cubic yards of side wall on do. at $6 - 2,400

11,200

166 MEMOIR OF THE 6,500 cubic yards of earth filling over pipes, at 40 cents - 2,600 350 superficial yards turfing, at 30 cents - 105