Interstate 405 over Bolsa Chica Ditch
Fair Condition67 years old374,000 vehicles/day
Location
| State | California |
| County | Orange |
| Location | 12-ora-405-20.77-slb |
| Carries | Interstate 405 |
| Crosses | Bolsa Chica Ditch |
| Coordinates | 33.77484, -118.04291 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 38.1 ft (11.6 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Width | 156.2 ft (47.6 m) |
| Deck Area | 552.2 sq m |
| Main Spans | 3 |
| Year Built | 1959 (reconstructed 1965) |
Traffic
| Avg Daily Traffic | 374,000 (2014) |
| Truck Traffic | 3% |
| 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 0334 |