Structure 18108 · Walker County, AL
Carries Nix RD over Unnamed Creek, Co RD 11 No. Of Corr X.
A culvert 21 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 | Walker |
| Location | Co RD 11 No. Of Corr X |
| Carries | Nix RD |
| Crosses | Unnamed Creek |
| Coordinates | 33.91361, -87.50056 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Width | 999.0 ft (304.5 m) |
| Deck Area | 1948.8 sq m |
| Main Spans | 2 |
| Year Built | 2004 |
| Avg Daily Traffic | 1,000 (2004) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 018108 |
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.