Tr 228 Blackjack R over Mill Creek
Fair Condition50 years old275 vehicles/day
Location
| State | Illinois |
| County | Madison |
| Location | 4.0 Mi SE Troy |
| Carries | Tr 228 Blackjack R |
| Crosses | Mill Creek |
| Coordinates | 38.67871, -89.85679 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 110.9 ft (33.8 m) |
| Max Span | 34.8 ft (10.6 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 307.6 sq m |
| Main Spans | 3 |
| Year Built | 1976 |
Traffic
| Avg Daily Traffic | 275 (2021) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 060321700000000 |