Structure 18890 · Sebastian County, AR
Carries County Road 46 over Mackenay Creek Seb. Co., 0.3mi W Of SH 253.
Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.
How ratings work25 ft end to end, longest span 13 ft. 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 multi-beam bridge.
| State | Arkansas |
| County | Sebastian |
| Location | 0.3mi W Of SH 253 |
| Carries | County Road 46 |
| Crosses | Mackenay Creek Seb. Co. |
| Coordinates | 35.16217, -94.34427 |
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 13.1 ft (4 m) |
| Deck Width | 21.3 ft (6.5 m) |
| Deck Area | 49.4 sq m |
| Main Spans | 2 |
| Year Built | 1940 (reconstructed 1963) |
| Avg Daily Traffic | 705 (2018) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 000000000018890 |
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.