State ST over Main Br Chicago Riv
Poor Condition77 years old6,900 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | 309 N State |
| Carries | State ST |
| Crosses | Main Br Chicago Riv |
| Coordinates | 41.88791, -87.62800 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 4 (Poor) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Movable - Bascule |
| Total Length | 307.4 ft (93.7 m) |
| Max Span | 245.1 ft (74.7 m) |
| Deck Width | 107.9 ft (32.9 m) |
| Deck Area | 3082.7 sq m |
| Main Spans | 1 |
| Year Built | 1949 (reconstructed 1994) |
Traffic
| Avg Daily Traffic | 6,900 (2022) |
| Truck Traffic | 10% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 016604800000000 |