IRR BIA RTE 4178 over Drainage Canal
Fair Condition46 years old100 vehicles/day
Location
| State | New Mexico |
| County | San Juan |
| Location | 8km East Of Nm RTE 371 |
| Carries | IRR BIA RTE 4178 |
| Crosses | Drainage Canal |
| Coordinates | 36.54608, -108.15531 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 54.8 ft (16.7 m) |
| Max Span | 51.2 ft (15.6 m) |
| Deck Width | 26.9 ft (8.2 m) |
| Deck Area | 136.9 sq m |
| Main Spans | 1 |
| Year Built | 1980 |
Traffic
| Avg Daily Traffic | 100 (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 | 0000N48796B0821 |