No one knows how many sandhogs are, at any given moment, working beneath the streets of New York City, but one morning this winter half a dozen men could be spotted gathering around a hole on the northwest corner of Tenth Avenue and Thirtieth Street. The hole, surrounded by a tall aluminum fence, was thirty feet wide and reinforced with concrete. A priest had visited months before, to offer a brief prayer: "May God be with all ye who enter here, that the earth shall return ye safely." Now, as the sun rose, the men stepped from the snow-covered ground into a green metal cage, which was suspended over the chasm by an enormous winch. They wore yellow slickers and rubber boots with steel tips; they carried, among other things, flashlights, scissors, cigarettes, cough drops, knives, extra socks, and several twenty-pound crates marked "explosives."
A worker who was to remain above ground pulled a lever, and the cage began to descend. As it accumulated speed, and the light from the surface grew thinner, James Ryan, one of the older men in the crew, peered over the edge into the void. He had a long, hard face flecked with scars. "We got nine cases of dynamite," he said. "That should be plenty."
His voice reverberated in the shaft as the men went down thirty, forty, fifty feet, then another fifty, then a hundred more. "Two hundred," one of them called out. By three hundred feet, they could no longer see anything above or below. Surrounded by darkness, and pressed closely together, the men exchanged sight for sound-the ping of dripping water, the echo of voices, the cable groaning overhead. At five hundred feet, the air became warmer, denser; one of the men put on a mask to keep out the dust that floated through the shaft. "All right," Ryan told me. "We're almost there."