Structure 33 0305F · Alameda County, CA
Carries W24-e&w580 Connctr over I 580 SR 24 Macarthur, 04-ala-024-r1.88-oak.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.
How ratings work5,131 ft end to end, longest span 142 ft: about 14 football fields. 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 | Alameda |
| Location | 04-ala-024-r1.88-oak |
| Carries | W24-e&w580 Connctr |
| Crosses | I 580 SR 24 Macarthur |
| Coordinates | 37.82556, -122.27241 |
| Material | Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 5130.9 ft (1563.9 m) |
| Max Span | 142.1 ft (43.3 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 16264.6 sq m |
| Main Spans | 58 |
| Year Built | 1970 |
| Avg Daily Traffic | 47,500 (1998) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 50 |
| Last Inspection | July 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 | 33 0305F |
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.