31st ST over I-294 Tri State Toll
Fair Condition68 years old14,700 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | 1 M N US 34 |
| Carries | 31st ST |
| Crosses | I-294 Tri State Toll |
| Coordinates | 41.83315, -87.91866 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 290.4 ft (88.5 m) |
| Max Span | 118.4 ft (36.1 m) |
| Deck Width | 71.2 ft (21.7 m) |
| Deck Area | 1920.5 sq m |
| Main Spans | 2 |
| Year Built | 1958 (reconstructed 1992) |
Traffic
| Avg Daily Traffic | 14,700 (2022) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 6 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 016086700000000 |