Structure 8143 · Mobile County, AL
Carries I-10 WB * EB over Branch, 1.3 Mi E Jct SR 163.
A culvert 20 ft across with 2 openings. 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, so those are drawn as typical for a culvert.
| State | Alabama |
| County | Mobile |
| Location | 1.3 Mi E Jct SR 163 |
| Carries | I-10 WB * EB |
| Crosses | Branch |
| Coordinates | 30.65104, -88.07214 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 20.0 ft (6.1 m) |
| Max Span | 7.9 ft (2.4 m) |
| Deck Area | 314.1 sq m |
| Main Spans | 2 |
| Year Built | 1966 |
| Avg Daily Traffic | 77,791 (2022) |
| Truck Traffic | 18% |
| Lanes On Bridge | 9 |
| Last Inspection | February 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 008143 |
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.