I- 57 NB over Cal Sag Channel
Fair Condition60 years old54,850 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | 0.5 M S 127th |
| Carries | I- 57 NB |
| Crosses | Cal Sag Channel |
| Coordinates | 41.65462, -87.66155 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 491.8 ft (149.9 m) |
| Max Span | 267.7 ft (81.6 m) |
| Deck Width | 58.1 ft (17.7 m) |
| Deck Area | 2653.2 sq m |
| Main Spans | 3 |
| Year Built | 1966 (reconstructed 1989) |
Traffic
| Avg Daily Traffic | 54,850 (2024) |
| Truck Traffic | 6% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 016006500000000 |