Structure 56B00136N · Jefferson County, KY
Carries US 31 (2nd St) over Ohio River, At Ky/in State Line.
4,926 ft end to end, longest span 820 ft: about 14 football fields. 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 through truss.
| State | Kentucky |
| County | Jefferson |
| Location | At Ky/in State Line |
| Carries | US 31 (2nd St) |
| Crosses | Ohio River |
| Coordinates | 38.26361, -85.75167 |
| Material | Steel Continuous |
| Design | Truss - Thru |
| Total Length | 4925.9 ft (1501.4 m) |
| Max Span | 819.9 ft (249.9 m) |
| Deck Width | 55.1 ft (16.8 m) |
| Deck Area | 25223.5 sq m |
| Main Spans | 7 |
| Year Built | 1929 (reconstructed 1958) |
| Avg Daily Traffic | 23,881 (2020) |
| Truck Traffic | 11% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 9 |
| Last Inspection | June 2024 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 056B00136N |
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.