I-355 NB over I-55
Fair Condition37 years old41,950 vehicles/day
Location
| State | Illinois |
| County | Will |
| Location | 1.3m S Of Boughton |
| Carries | I-355 NB |
| Crosses | I-55 |
| Coordinates | 41.70423, -88.03088 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 359.9 ft (109.7 m) |
| Max Span | 180.1 ft (54.9 m) |
| Deck Width | 63.0 ft (19.2 m) |
| Deck Area | 2106.2 sq m |
| Main Spans | 2 |
| Year Built | 1989 |
Traffic
| Avg Daily Traffic | 41,950 (2023) |
| Truck Traffic | 16% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 10 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Toll Authority |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 099994400000000 |