I-39 Sb/us 51sb over B & N Rr
Fair Condition49 years old8,200 vehicles/day
Location
| State | Illinois |
| County | LaSalle |
| Location | 0.75 Mi N Of US 34 |
| Carries | I-39 Sb/us 51sb |
| Crosses | B & N Rr |
| Coordinates | 41.56534, -89.06199 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 169.0 ft (51.5 m) |
| Max Span | 65.0 ft (19.8 m) |
| Deck Width | 42.0 ft (12.8 m) |
| Deck Area | 659.2 sq m |
| Main Spans | 3 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 8,200 (2023) |
| Truck Traffic | 48% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 124 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 050016300000000 |