Structure 6771 · Pima County, AZ
Carries I 10; EB & WB over I-10 Side Ditch., 16.9 Mi N Jct I 19.
A culvert 24 ft across with 2 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.
| State | Arizona |
| County | Pima |
| Location | 16.9 Mi N Jct I 19 |
| Carries | I 10; EB & WB |
| Crosses | I-10 Side Ditch. |
| Coordinates | 32.39940, -111.13010 |
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 7.9 ft (2.4 m) |
| Deck Area | 129.2 sq m |
| Main Spans | 2 |
| Year Built | 1967 |
| Avg Daily Traffic | 61,861 (2024) |
| Truck Traffic | 6% |
| Lanes On Bridge | 6 |
| Last Inspection | September 2024 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 06771 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.