31-0049 over Rio Puerco of the West
McKinley County, New Mexico · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 31-0049 over Rio Puerco of the West in McKinley County, New Mexico, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1988, making it 37 years old at the 2025 inventory.
- It carries about 179 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 23 of the 289 inventoried bridges in McKinley County rated poor (8.0%); 23 (8.0%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated November 2023, on a 12-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (35.62467, -108.43628)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 4 | 4 | Poor condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Aluminum or iron through truss |
| Length | about 134 ft |
| Location | 8.3 Mi N of Nm-566 |
| NBI structure number | 000000000010023 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | November 2023 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New Mexico department of transportation.
Busiest bridges in McKinley County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-40 Wbl over BNSF R/R Spur | 1980 | 31,569 | Fair |
| I-40 Ebl over BNSF R/R Spur | 1980 | 31,569 | Fair |
| I-40 Ebl over Third Street | 1980 | 31,569 | Fair |
| I-40 WB over Third Street | 1980 | 31,569 | Fair |
| I-40 WB over Second Street | 1980 | 31,569 | Fair |
| I-40 Ebl over Second Street | 1980 | 31,569 | Fair |
All bridges nearby: McKinley County, NM bridge conditions · every bridge in McKinley County · New Mexico bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.