Il 31 over Rr - Up
Fair Condition55 years old34,400 vehicles/day
Location
| State | Illinois |
| County | McHenry |
| Location | Ill 31 & US 14 Inter |
| Carries | Il 31 |
| Crosses | Rr - Up |
| Coordinates | 42.22973, -88.28793 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 190.9 ft (58.2 m) |
| Max Span | 66.9 ft (20.4 m) |
| Deck Width | 86.9 ft (26.5 m) |
| Deck Area | 1542.3 sq m |
| Main Spans | 3 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 34,400 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 056004000000000 |