IRR BIA RTE N172 over Lukachukai Wash
Good Condition49 years old385 vehicles/day
Location
| State | Arizona |
| County | Apache |
| Location | At Round Rock Day School |
| Carries | IRR BIA RTE N172 |
| Crosses | Lukachukai Wash |
| Coordinates | 36.51369, -109.47186 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 209.6 ft (63.9 m) |
| Max Span | 69.9 ft (21.3 m) |
| Deck Width | 31.2 ft (9.5 m) |
| Deck Area | 607.0 sq m |
| Main Spans | 3 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 385 (2023) |
| Truck Traffic | 5% |
| 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 | 00000000000N518 |