Al - 4 (us 78) over Cahaba River
Fair Condition71 years old2,825 vehicles/day
Location
| State | Alabama |
| County | Jefferson |
| Location | Al - 4 Cahaba River |
| Carries | Al - 4 (us 78) |
| Crosses | Cahaba River |
| Coordinates | 33.54597, -86.61336 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Tee Beam |
| Total Length | 315.0 ft (96 m) |
| Max Span | 69.9 ft (21.3 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 969.6 sq m |
| Main Spans | 3 |
| Year Built | 1955 |
Traffic
| Avg Daily Traffic | 2,825 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 004770 |