Illiopolis Tr560 over Willow Branch
Good Condition44 years old50 vehicles/day
Location
| State | Illinois |
| County | Sangamon |
| Location | 1.0 S Illiopolis |
| Carries | Illiopolis Tr560 |
| Crosses | Willow Branch |
| Coordinates | 39.82967, -89.23636 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 101.4 ft (30.9 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 225.6 sq m |
| Main Spans | 3 |
| Year Built | 1982 |
Traffic
| Avg Daily Traffic | 50 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 48 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 084361700000000 |