Structure 55 0689E · Orange County, CA
Carries S5-s55&n55-n5 Hov over I 5 SR 55 Ramps & Sts, 12-ora-055-r10.06-sa.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.
How ratings work7,366 ft end to end, longest span 240 ft: about 20 football fields, or 1.4 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a box-beam bridge.
| State | California |
| County | Orange |
| Location | 12-ora-055-r10.06-sa |
| Carries | S5-s55&n55-n5 Hov |
| Crosses | I 5 SR 55 Ramps & Sts |
| Coordinates | 33.73414, -117.83377 |
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 7366.1 ft (2245.2 m) |
| Max Span | 240.2 ft (73.2 m) |
| Deck Width | 49.5 ft (15.1 m) |
| Deck Area | 33902.5 sq m |
| Main Spans | 52 |
| Year Built | 1994 |
| Avg Daily Traffic | 12,000 (2020) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 47 |
| Last Inspection | April 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Not applicable |
| Structure Number | 55 0689E |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.