Il 1 (halsted ST over Cal Union Ditch
Poor Condition42 years old19,200 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | @ 161st .25 M S Us6 |
| Carries | Il 1 (halsted ST |
| Crosses | Cal Union Ditch |
| Coordinates | 41.59710, -87.63642 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 4 (Poor) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 25.9 ft (7.9 m) |
| Max Span | 24.9 ft (7.6 m) |
| Deck Width | 76.1 ft (23.2 m) |
| Deck Area | 183.3 sq m |
| Main Spans | 1 |
| Year Built | 1984 |
Traffic
| Avg Daily Traffic | 19,200 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 016252500000000 |