Nm-522 over Costilla Creek
Taos County, New Mexico · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nm-522 over Costilla Creek in Taos County, New Mexico, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1957, making it 68 years old at the 2025 inventory.
- It carries about 1,049 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 31 of the 93 inventoried bridges in Taos County rated good (33.3%); 11 (11.8%) 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 → (36.97977, -105.53149)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 33 ft |
| Location | Nm 522 Mm 39.9 |
| NBI structure number | 000000000006016 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New Mexico department of transportation.
Busiest bridges in Taos County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Nm-68 over Unnamed Waterway | 1940 | 20,545 | Fair |
| Nm-68 over Unnamed Waterway | 1940 | 17,524 | Fair |
| Nm-68 over Unnamed Waterway | 1940 | 17,524 | Fair |
| Nm-68 over Rio Don Fernando | 1940 | 16,972 | Good |
| Irr/us-64 over Rio Pueblo De Taos | 1939 | 12,606 | Fair |
| Irr/us-64 over Rio Lucero | 1939 | 12,606 | Fair |
All bridges nearby: Taos County, NM bridge conditions · every bridge in Taos County · New Mexico bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.