Ill 78 over Trib E Fork Plum Riv
Fair Condition36 years old625 vehicles/day
Location
| State | Illinois |
| County | Carroll |
| Location | 4 Mi N Mt Carroll |
| Carries | Ill 78 |
| Crosses | Trib E Fork Plum Riv |
| Coordinates | 42.16787, -89.98725 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 69.9 ft (21.3 m) |
| Max Span | 65.3 ft (19.9 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 193.8 sq m |
| Main Spans | 1 |
| Year Built | 1990 |
Traffic
| Avg Daily Traffic | 625 (2023) |
| Truck Traffic | 19% |
| Lanes On Bridge | 2 |
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 | 008003500000000 |