I-39 Sb/us 51 SB over Little Vermilion R.
Fair Condition47 years old9,350 vehicles/day
Location
| State | Illinois |
| County | LaSalle |
| Location | 1.3 Mi N.of US 52 |
| Carries | I-39 Sb/us 51 SB |
| Crosses | Little Vermilion R. |
| Coordinates | 41.48997, -89.04832 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 143.0 ft (43.6 m) |
| Max Span | 51.2 ft (15.6 m) |
| Deck Width | 42.0 ft (12.8 m) |
| Deck Area | 558.1 sq m |
| Main Spans | 3 |
| Year Built | 1979 |
Traffic
| Avg Daily Traffic | 9,350 (2023) |
| Truck Traffic | 39% |
| 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 | 050016900000000 |