Alton Parkway WB over State Route 133 & Ramp
Fair Condition39 years old10,500 vehicles/day
Location
| State | California |
| County | Orange |
| Location | 12-ora-133-8.75-irvn |
| Carries | Alton Parkway WB |
| Crosses | State Route 133 & Ramp |
| Coordinates | 33.65684, -117.75862 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 320.9 ft (97.8 m) |
| Max Span | 126.0 ft (38.4 m) |
| Deck Width | 44.9 ft (13.7 m) |
| Deck Area | 1339.9 sq m |
| Main Spans | 3 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 10,500 (2017) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 7 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 55 0653L |