Ia-4329 over Unnamed Waterway
Quay County, New Mexico · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ia-4329 over Unnamed Waterway in Quay 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 1971, making it 54 years old at the 2025 inventory.
- It carries about 53 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 71 of the 118 inventoried bridges in Quay County rated fair (60.2%); 7 (5.9%) 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 → (35.1491, -103.77669)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 22 ft |
| Location | W Tucumcari I/c EXIT329 |
| NBI structure number | 000000000007212 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New Mexico department of transportation.
Busiest bridges in Quay County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-40 Wbl over Nm-209 | 1980 | 21,966 | Fair |
| I-40 Ebl over Blanco Creek | 1958 | 21,451 | Fair |
| I-40 Wbl over Blanco Creek | 1958 | 21,451 | Fair |
| I-40 Ebl over I-40 Frontage Road | 1971 | 21,451 | Fair |
| I-40 Wbl over FR4115 | 1971 | 21,451 | Fair |
| I-40 Ebl over Bluewater Creek | 1970 | 21,451 | Fair |
All bridges nearby: Quay County, NM bridge conditions · every bridge in Quay County · New Mexico bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.