Structure 9B00042N · Bourbon County, KY
Carries Ky-57 over Boone Creek, 1.5 Mi S Of Jct Ky 537.
A culvert 23 ft across with 3 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 | Kentucky |
| County | Bourbon |
| Location | 1.5 Mi S Of Jct Ky 537 |
| Carries | Ky-57 |
| Crosses | Boone Creek |
| Coordinates | 38.17111, -84.05750 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 23.3 ft (7.1 m) |
| Max Span | 6.9 ft (2.1 m) |
| Deck Width | 22.0 ft (6.7 m) |
| Deck Area | 47.6 sq m |
| Main Spans | 3 |
| Year Built | 1930 |
| Avg Daily Traffic | 263 (2023) |
| Lanes On Bridge | 2 |
| Last Inspection | February 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 009B00042N |
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.