US-491 over Unnamed Waterway
McKinley County, New Mexico · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US-491 over Unnamed Waterway in McKinley County, New Mexico, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
- It was built in 1971, making it 54 years old at the 2025 inventory.
- It carries about 5,936 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 109 of the 289 inventoried bridges in McKinley County rated good (37.7%); 23 (8.0%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (35.9317, -108.6535)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 8 | Very good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 23 ft |
| Location | 32.1 Mi N of Jcti40/us491 |
| NBI structure number | 000000000007247 |
| Condition class | Good |
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.