123rd ST over I- 57
Fair Condition60 years old3,100 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | 3.6 M SW Il 1 |
| Carries | 123rd ST |
| Crosses | I- 57 |
| Coordinates | 41.67030, -87.66276 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 236.5 ft (72.1 m) |
| Max Span | 70.9 ft (21.6 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 793.1 sq m |
| Main Spans | 4 |
| Year Built | 1966 (reconstructed 2001) |
Traffic
| Avg Daily Traffic | 3,100 (2022) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 6 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 016203300000000 |