31st ST over Salt Creek
Fair Condition25 years old14,300 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | 1.7 M E US 45 |
| Carries | 31st ST |
| Crosses | Salt Creek |
| Coordinates | 41.83509, -87.84307 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 146.0 ft (44.5 m) |
| Max Span | 73.2 ft (22.3 m) |
| Deck Width | 70.2 ft (21.4 m) |
| Deck Area | 952.3 sq m |
| Main Spans | 2 |
| Year Built | 2001 |
Traffic
| Avg Daily Traffic | 14,300 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 016272500000000 |