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I appreciate your detailed request, but I must be direct: the search results provided contain no information about "st-anna-tunnel-and-old-river-crossing" or any specific named tunnel or river crossing feature within the Chicago Pedway system.
The search results describe the Chicago Pedway as: - A 5–6 mile network of underground tunnels, skybridges, and concourses - Connecting 40–50+ buildings across downtown Chicago's Loop - Developed starting in 1951 - Managed partially by CDOT and partially by private entities - Marked by a compass/wind rose logo
However, there is **no mention** of: - A "St. Anna Tunnel" - An "Old River Crossing" within the Pedway - Any specific named historical crossing feature matching your query
**I cannot ethically provide:** - Fabricated highlight descriptions for a non-existent attraction - Made-up opening hours, access details, or logistics - Invented ratings or guidance for a location I cannot verify exists
No verified articles currently available.