Irr/nm-399 over Arroyo Seco
Fair Condition47 years old4,798 vehicles/day
Location
| State | New Mexico |
| County | Rio Arriba |
| Location | 0.85 Mi SW Of Jct Us-84 |
| Carries | Irr/nm-399 |
| Crosses | Arroyo Seco |
| Coordinates | 35.97160, -106.05720 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 134.2 ft (40.9 m) |
| Max Span | 37.1 ft (11.3 m) |
| Deck Width | 39.7 ft (12.1 m) |
| Deck Area | 494.9 sq m |
| Main Spans | 4 |
| Year Built | 1979 |
Traffic
| Avg Daily Traffic | 4,798 (2023) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000008149 |