State Route 91 over Carbon Cyn Diversion Cha
Good Condition65 years old225,000 vehicles/day
Location
| State | California |
| County | Orange |
| Location | 12-ora-091-7.27-ana |
| Carries | State Route 91 |
| Crosses | Carbon Cyn Diversion Cha |
| Coordinates | 33.84734, -117.85684 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 58.1 ft (17.7 m) |
| Max Span | 58.1 ft (17.7 m) |
| Deck Width | 166.3 ft (50.7 m) |
| Deck Area | 897.4 sq m |
| Main Spans | 1 |
| Year Built | 1961 (reconstructed 1969) |
Traffic
| Avg Daily Traffic | 225,000 (2014) |
| Truck Traffic | 8% |
| Lanes On Bridge | 10 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 55 0396 |