State Route 57 over San Dimas Avenue
Fair Condition55 years old158,000 vehicles/day
Location
| State | California |
| County | Los Angeles |
| Location | 07-la-057-r9.82-sdms |
| Carries | State Route 57 |
| Crosses | San Dimas Avenue |
| Coordinates | 34.09290, -117.81926 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 323.2 ft (98.5 m) |
| Max Span | 98.1 ft (29.9 m) |
| Deck Width | 148.0 ft (45.1 m) |
| Deck Area | 4442.4 sq m |
| Main Spans | 4 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 158,000 (2022) |
| Truck Traffic | 7% |
| Lanes On Bridge | 8 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 53 2009 |