Tr 56a over Henderson Creek
Good Condition41 years old25 vehicles/day
Location
| State | Illinois |
| County | Knox |
| Location | Sw-34-t13nr1e |
| Carries | Tr 56a |
| Crosses | Henderson Creek |
| Coordinates | 41.06998, -90.37644 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 79.1 ft (24.1 m) |
| Max Span | 77.1 ft (23.5 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 175.9 sq m |
| Main Spans | 1 |
| Year Built | 1985 |
Traffic
| Avg Daily Traffic | 25 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 48 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 048329600000000 |