Chicago Riverwalk

This guide to the Chicago Riverwalk follows a construction crew driving pilings near the old Kinzie Street bridge in December 1991, and a small crack that opened into an abandoned freight tunnel once used to haul coal and mail beneath the Loop. It traces the months the leak sat unfixed after a cable worker filmed it, and the officials who kept pushing the repair back. Walk this stretch level with the water, and you're standing almost exactly above where that crack first opened.