Alta Road over Oniel Canyon
Good Condition36 years old634 vehicles/day
Location
| State | California |
| County | San Diego |
| Location | 1.6mi N/o Otay Mesa Road |
| Carries | Alta Road |
| Crosses | Oniel Canyon |
| Coordinates | 32.58664, -116.92638 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 9 (Excellent) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 36.1 ft (11 m) |
| Max Span | 11.8 ft (3.6 m) |
| Deck Area | 110 sq m |
| Main Spans | 3 |
| Year Built | 1990 |
Traffic
| Avg Daily Traffic | 634 (2016) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2022 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 57C0745 |