IRR BIA RTE 4178 over Irrigation Canal
Good Condition34 years old1,000 vehicles/day
Location
| State | New Mexico |
| County | San Juan |
| Location | 2km East Of Nm RTE 371 |
| Carries | IRR BIA RTE 4178 |
| Crosses | Irrigation Canal |
| Coordinates | 36.51883, -108.21108 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 27.2 ft (8.3 m) |
| Max Span | 8.5 ft (2.6 m) |
| Deck Width | 42.3 ft (12.9 m) |
| Deck Area | 107.1 sq m |
| Main Spans | 3 |
| Year Built | 1992 |
Traffic
| Avg Daily Traffic | 1,000 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | Bureau of Indian Affairs |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0000N48796B0822 |