Il 255 SB over Humbert RD (ch 4)
Good Condition14 years old9,850 vehicles/day
Location
| State | Illinois |
| County | Madison |
| Location | 2.8mi W Of Seminary |
| Carries | Il 255 SB |
| Crosses | Humbert RD (ch 4) |
| Coordinates | 38.96395, -90.18087 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 149.3 ft (45.5 m) |
| Max Span | 147.6 ft (45 m) |
| Deck Width | 45.3 ft (13.8 m) |
| Deck Area | 627.9 sq m |
| Main Spans | 1 |
| Year Built | 2012 |
Traffic
| Avg Daily Traffic | 9,850 (2023) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 060030900000000 |