Interstate 580 over Arroyo Las Positas
Fair Condition54 years old208,000 vehicles/day
Location
| State | California |
| County | Alameda |
| Location | 04-ala-580-13.13 |
| Carries | Interstate 580 |
| Crosses | Arroyo Las Positas |
| Coordinates | 37.69995, -121.78447 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Tee Beam |
| Total Length | 176.5 ft (53.8 m) |
| Max Span | 69.9 ft (21.3 m) |
| Deck Width | 211.3 ft (64.4 m) |
| Deck Area | 3464.7 sq m |
| Main Spans | 3 |
| Year Built | 1972 (reconstructed 2016) |
Traffic
| Avg Daily Traffic | 208,000 (2017) |
| Truck Traffic | 14% |
| Lanes On Bridge | 13 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 33 0203 |