Structure 830A4230005 · Sumner County, TN
Carries Nfa A423 over Liggett Branch, 4.5 Mi NE Jct Sr174&sr258.
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 | Tennessee |
| County | Sumner |
| Location | 4.5 Mi NE Jct Sr174&sr258 |
| Carries | Nfa A423 |
| Crosses | Liggett Branch |
| Coordinates | 36.43130, -86.57922 |
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 8.9 ft (2.7 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 60.2 sq m |
| Main Spans | 2 |
| Year Built | 1970 |
| Avg Daily Traffic | 230 (2020) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
| Last Inspection | January 2025 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 830A4230005 |
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.