US 70 over Backfield Canyon
Good Condition74 years old1,052 vehicles/day
Location
| State | Arizona |
| County | Greenlee |
| Location | 0.9 Mi W Jct SR 75 |
| Carries | US 70 |
| Crosses | Backfield Canyon |
| Coordinates | 32.73148, -109.11456 |
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 | 32.2 ft (9.8 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 101.9 sq m |
| Main Spans | 3 |
| Year Built | 1952 |
Traffic
| Avg Daily Traffic | 1,052 (2021) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 04328 |