Nm-170 over La Plata River
Fair Condition71 years old3,467 vehicles/day
Location
| State | New Mexico |
| County | San Juan |
| Location | 2.7 Mi N Of Jct Nm-574 |
| Carries | Nm-170 |
| Crosses | La Plata River |
| Coordinates | 36.96765, -108.19124 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 199.1 ft (60.7 m) |
| Max Span | 42.0 ft (12.8 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 516.0 sq m |
| Main Spans | 5 |
| Year Built | 1955 |
Traffic
| Avg Daily Traffic | 3,467 (2023) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 000000000005499 |