Structure 4301 · McKinley County, NM
Carries 31-0012 over Rio Nutria, 7.60 Mi SE Of Mcgaffey.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.
How ratings work21 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 multi-beam bridge.
| State | New Mexico |
| County | McKinley |
| Location | 7.60 Mi SE Of Mcgaffey |
| Carries | 31-0012 |
| Crosses | Rio Nutria |
| Coordinates | 35.31406, -108.44118 |
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 20.7 ft (6.3 m) |
| Max Span | 19.0 ft (5.8 m) |
| Deck Width | 14.1 ft (4.3 m) |
| Deck Area | 27.1 sq m |
| Main Spans | 1 |
| Year Built | 1920 (reconstructed 1973) |
| Avg Daily Traffic | 337 (2023) |
| Lanes On Bridge | 1 |
| Last Inspection | May 2024 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 3 — Scour critical |
| Structure Number | 000000000004301 |
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.