Irr Bia Rte 5 over La Jara Creek
Rio Arriba County, New Mexico · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Irr Bia Rte 5 over La Jara Creek in Rio Arriba County, New Mexico, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1960 and reconstructed in 2011, making it 65 years old at the 2025 inventory.
- It carries about 20 vehicles a day (traffic count year 2023).
- It is one of 10 of the 159 inventoried bridges in Rio Arriba County rated poor (6.3%); 10 (6.3%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated April 2023, on a 24-month routine inspection cycle.
- 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 → (36.70406, -107.07408)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 4 | 4 | Poor condition |
Bridge details
| Structure | Steel culvert |
| Length | about 41 ft |
| Location | 10 Km S US 64 on Bia 5 |
| NBI structure number | 00000000000M320 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New Mexico department of transportation.
Busiest bridges in Rio Arriba County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Nm-68 NB over Santa Cruz River | 1957 | 19,160 | Poor |
| Nm-68 SB over Santa Cruz River | 1957 | 19,160 | Fair |
| Nm-584 over Rio Grande | 1977 | 17,171 | Fair |
| Nm-68 over Unnamed Waterway | 1956 | 16,476 | Fair |
| Nm-68 over Unnamed Waterway | 1925 | 16,131 | Good |
| Nm-68 SB over Unnamed Waterway | 1956 | 16,131 | Good |
All bridges nearby: Rio Arriba County, NM bridge conditions · every bridge in Rio Arriba County · New Mexico bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.