State Route 91 over Roadside Ditch Drain A
Good Condition56 years old300,000 vehicles/day
Location
| State | California |
| County | Orange |
| Location | 12-ora-091-r10.50-ana |
| Carries | State Route 91 |
| Crosses | Roadside Ditch Drain A |
| Coordinates | 33.85361, -117.80941 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 27.9 ft (8.5 m) |
| Max Span | 7.9 ft (2.4 m) |
| Deck Width | 159.1 ft (48.5 m) |
| Deck Area | 412.2 sq m |
| Main Spans | 3 |
| Year Built | 1970 |
Traffic
| Avg Daily Traffic | 300,000 (2020) |
| Truck Traffic | 5% |
| Lanes On Bridge | 11 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 55 0604 |