State Route 91 over Carbon Ditch
Good Condition67 years old265,000 vehicles/day
Location
| State | California |
| County | Orange |
| Location | 12-ora-091-4.28-ana |
| Carries | State Route 91 |
| Crosses | Carbon Ditch |
| Coordinates | 33.85371, -117.90511 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 49.9 ft (15.2 m) |
| Max Span | 16.1 ft (4.9 m) |
| Deck Width | 109.6 ft (33.4 m) |
| Deck Area | 507.7 sq m |
| Main Spans | 3 |
| Year Built | 1959 |
Traffic
| Avg Daily Traffic | 265,000 (2014) |
| Truck Traffic | 6% |
| Lanes On Bridge | 9 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 55 0196 |