Tr-34a over Big Creek
Fair Condition41 years old100 vehicles/day
Location
| State | Illinois |
| County | Effingham |
| Location | 1.5 Mi SE Altamont |
| Carries | Tr-34a |
| Crosses | Big Creek |
| Coordinates | 39.03368, -88.72956 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| 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 | 61.4 ft (18.7 m) |
| Max Span | 58.1 ft (17.7 m) |
| Deck Width | 24.3 ft (7.4 m) |
| Deck Area | 138.4 sq m |
| Main Spans | 1 |
| Year Built | 1985 |
Traffic
| Avg Daily Traffic | 100 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 025316700000000 |