State Route 55 over Santiago Creek
Fair Condition64 years old248,000 vehicles/day
Location
| State | California |
| County | Orange |
| Location | 12-ora-055-13.42-ora |
| Carries | State Route 55 |
| Crosses | Santiago Creek |
| Coordinates | 33.78388, -117.83073 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 366.5 ft (111.7 m) |
| Max Span | 84.6 ft (25.8 m) |
| Deck Width | 204.1 ft (62.2 m) |
| Deck Area | 6947.7 sq m |
| Main Spans | 5 |
| Year Built | 1962 (reconstructed 2002) |
Traffic
| Avg Daily Traffic | 248,000 (2020) |
| Truck Traffic | 6% |
| Lanes On Bridge | 13 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 55 0033 |