Structure 21226 · Jefferson County, AL
Carries I-59/I-20 EB over 15th ST N To US 31, Central Business District.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.
How ratings work6,564 ft end to end, longest span 165 ft: about 18 football fields, or 1.2 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a segmental box-girder bridge.
| State | Alabama |
| County | Jefferson |
| Location | Central Business District |
| Carries | I-59/I-20 EB |
| Crosses | 15th ST N To US 31 |
| Coordinates | 33.51998, -86.81926 |
| Material | Prestressed Concrete Continuous |
| Design | Segmental Box Girder |
| Total Length | 6564.0 ft (2000.7 m) |
| Max Span | 165.0 ft (50.3 m) |
| Deck Width | 70.5 ft (21.5 m) |
| Deck Area | 43015.1 sq m |
| Main Spans | 42 |
| Year Built | 2019 |
| Avg Daily Traffic | 67,372 (2021) |
| Truck Traffic | 10% |
| Lanes On Bridge | 6 |
| Lanes Under Bridge | 40 |
| Last Inspection | April 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Not applicable |
| Structure Number | 021226 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.