The haunted legend surrounding Chicago's Clark Street Bridge relates to the Eastland Disaster of 1915, where over 800 people died when a passenger steamer capsized at its dock nearby. Locals claim to hear cries and moans of the deceased around the bridge, with some also reporting sightings of a gray lady, the ghost of a victim of the disaster. In 1915, the Eastland, an overloaded passenger steamer, capsized while still tied to its dock, resulting in the deaths of over 800 people. The primary haunting involves sounds of cries and moans emanating from the area around the bridge. Another story describes a "gray lady" whose ominous screams are said to haunt the area where the disaster occurred. The bridge is located near the site of the disaster, making the area a focal point for these supernatural tales.