I-25 Nbl/sbl over County Rd-b079
Sierra County, New Mexico · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-25 Nbl/sbl over County Rd-b079 in Sierra County, New Mexico, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1968, making it 57 years old at the 2025 inventory.
- It carries about 8,962 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 73 of the 112 inventoried bridges in Sierra County rated fair (65.2%); 5 (4.5%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (33.0964, -107.3051)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 25 ft |
| Location | 0.6 Miles County Rd B-79 |
| NBI structure number | 000000000006994 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New Mexico department of transportation.
Busiest bridges in Sierra County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-25 Nbl over Palomas Creek | 1968 | 8,962 | Fair |
| I-25 Sbl over Palomas Creek | 1968 | 8,962 | Fair |
| I-25 Nbl/sbl over Canada Honda | 1968 | 8,962 | Fair |
| I-25 NB over Nm-181 | 1967 | 8,510 | Fair |
| I-25 Nbl over Percha Creek | 1965 | 8,008 | Fair |
| I-25 Sbl over Percha Creek | 1965 | 8,008 | Fair |
All bridges nearby: Sierra County, NM bridge conditions · every bridge in Sierra County · New Mexico bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.