Tr 421 over Little Vermilion Riv
Fair Condition33 years old20 vehicles/day
Location
| State | Illinois |
| County | Vermilion |
| Location | 3.5 Mi NE Allerton |
| Carries | Tr 421 |
| Crosses | Little Vermilion Riv |
| Coordinates | 39.93844, -87.87925 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 81.4 ft (24.8 m) |
| Max Span | 80.1 ft (24.4 m) |
| Deck Width | 26.9 ft (8.2 m) |
| Deck Area | 203.4 sq m |
| Main Spans | 1 |
| Year Built | 1993 |
Traffic
| Avg Daily Traffic | 20 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 092344000000000 |