Il 57 over Mill Creek
Poor Condition94 years old4,450 vehicles/day
Location
| State | Illinois |
| County | Adams |
| Location | At Marblehead |
| Carries | Il 57 |
| Crosses | Mill Creek |
| Coordinates | 39.84132, -91.36969 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 3 (Serious) |
| Superstructure | 3 (Serious) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 243.8 ft (74.3 m) |
| Max Span | 54.1 ft (16.5 m) |
| Deck Width | 37.1 ft (11.3 m) |
| Deck Area | 839.6 sq m |
| Main Spans | 4 |
| Year Built | 1932 (reconstructed 1972) |
Traffic
| Avg Daily Traffic | 4,450 (2023) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 001001500000000 |