State Route 241 over Upper Oso Reservoir
Fair Condition31 years old21,000 vehicles/day
Location
| State | California |
| County | Orange |
| Location | 12-ora-241-20.40-msnv |
| Carries | State Route 241 |
| Crosses | Upper Oso Reservoir |
| Coordinates | 33.65633, -117.62964 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 1539.0 ft (469.1 m) |
| Max Span | 275.9 ft (84.1 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 6098.3 sq m |
| Main Spans | 6 |
| Year Built | 1995 |
Traffic
| Avg Daily Traffic | 21,000 (2014) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
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 0703L |