Ill 146 over Cache River
Fair Condition96 years old2,250 vehicles/day
Location
| State | Illinois |
| County | Johnson |
| Location | 1 Mi W Of W Vienna |
| Carries | Ill 146 |
| Crosses | Cache River |
| Coordinates | 37.42792, -88.99418 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 385.2 ft (117.4 m) |
| Max Span | 50.5 ft (15.4 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 1185.7 sq m |
| Main Spans | 2 |
| Year Built | 1930 (reconstructed 2010) |
Traffic
| Avg Daily Traffic | 2,250 (2023) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 044001400000000 |