Structure 55C0395 · Orange County, CA
Carries Los Alisos BLVD over English Canyon Channel, 0.6 Mi. W/o Trabuco Road.
A culvert 23 ft across. 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, so those are drawn as typical for a culvert.
| State | California |
| County | Orange |
| Location | 0.6 Mi. W/o Trabuco Road |
| Carries | Los Alisos BLVD |
| Crosses | English Canyon Channel |
| Coordinates | 33.62654, -117.67520 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 23.0 ft (7 m) |
| Max Span | 22.6 ft (6.9 m) |
| Deck Width | 150.9 ft (46 m) |
| Deck Area | 322 sq m |
| Main Spans | 1 |
| Year Built | 1969 |
| Avg Daily Traffic | 29,695 (2020) |
| Truck Traffic | 1% |
| Lanes On Bridge | 6 |
| Last Inspection | May 2024 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 55C0395 |
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.