Structure 21728 · Cullman County, AL
Carries Commercial Street over North Fork Mud Creek, 0.6 Mi East Of US HWY 31.
Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.
How ratings work20 ft end to end. 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 tee-beam bridge.
| State | Alabama |
| County | Cullman |
| Location | 0.6 Mi East Of US HWY 31 |
| Carries | Commercial Street |
| Crosses | North Fork Mud Creek |
| Coordinates | 34.06195, -86.75806 |
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 20.3 ft (6.2 m) |
| Max Span | 17.1 ft (5.2 m) |
| Deck Width | 32.5 ft (9.9 m) |
| Deck Area | 61.4 sq m |
| Main Spans | 1 |
| Year Built | 1950 (reconstructed 1986) |
| Avg Daily Traffic | 1,100 (2021) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
| Last Inspection | January 2025 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 021728 |
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.