The work to be done under these specifications consists in furnishing all materials and erecting a stone embankment, an earth embankment, and a wharf. The stone embankment will contain about 216,000 tons of stone; the earth embankment about 285,000 cubic yards of broken stone, sand, or other suitable material; and the wharf will contain 501,320 feet of timber, and 802 piles, together with the requisite quantity of cast iron mooring bits, wrought iron spikes, bolts, etc.