Structure 21700 · Limestone County, AL
Carries Dupree Hollow RD over Double Branch, _t.1s. R.5w. Sec 31.
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 | Limestone |
| Location | _t.1s. R.5w. Sec 31 |
| Carries | Dupree Hollow RD |
| Crosses | Double Branch |
| Coordinates | 34.91882, -87.09176 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 20.3 ft (6.2 m) |
| Max Span | 7.9 ft (2.4 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 56.4 sq m |
| Main Spans | 2 |
| Year Built | 2022 |
| Avg Daily Traffic | 121 (2022) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
| Last Inspection | August 2024 |
| 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 | 021700 |
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.