IRR US 70 over Bone Spring Canyon
Good Condition70 years old2,911 vehicles/day
Location
| State | Arizona |
| County | Graham |
| Location | 32.6 Mi E Jct SR 77 |
| Carries | IRR US 70 |
| Crosses | Bone Spring Canyon |
| Coordinates | 33.21523, -110.21258 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 65.0 ft (19.8 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 205.9 sq m |
| Main Spans | 6 |
| Year Built | 1956 |
Traffic
| Avg Daily Traffic | 2,911 (2021) |
| Truck Traffic | 24% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 04291 |