Ill 47 over Armstrong & B & O Rr
Poor Condition48 years old21,000 vehicles/day
Location
| State | Illinois |
| County | Grundy |
| Location | .57 S Of US 6 West |
| Carries | Ill 47 |
| Crosses | Armstrong & B & O Rr |
| Coordinates | 41.36425, -88.42182 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 396.0 ft (120.7 m) |
| Max Span | 71.9 ft (21.9 m) |
| Deck Width | 67.9 ft (20.7 m) |
| Deck Area | 2498.5 sq m |
| Main Spans | 6 |
| Year Built | 1978 |
Traffic
| Avg Daily Traffic | 21,000 (2023) |
| Truck Traffic | 9% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 223 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 032008600000000 |