Spot the Tugs A stern-mounted spotlight and a fleet of former US Army tugs that are still used to break ice and nudge ships into slips. Similar Images ...based on the tags: boats, cobwebs, lights, water... The bridge here moved workers between the dock, the approach tracks, and refueling buildings. Algae grows where water flows/From the sawtooth roof/To the mines below/The sun climbs high/But is in no one’s eyes/A wall alone crumbles/It was no suprise The Algosteel navigating Superior Entry. Below the factory floor is a network of hallways and tunnels, all flooded with water. The EPA has been doing work on and off over the past few years, digging up the foundations of the demolished steel mill to clean up the site. The dock is still lit at night and it casts shadows over the rust-welded ore doors. If you look carefully along the side of the slip alongside this image of Cargill B-2, you will see the remains of the crane stops when this was a Hannah coal dock. The lime room was in rough shape, but its colors and textures were like raw gold and oxidized copper.