Interstate 580 over Webster Street
Good Condition65 years old201,000 vehicles/day
Location
| State | California |
| County | Alameda |
| Location | 04-ala-580-44.81-oak |
| Carries | Interstate 580 |
| Crosses | Webster Street |
| Coordinates | 37.82313, -122.26181 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete |
| Design | Box Beam - Multiple |
| Total Length | 141.1 ft (43 m) |
| Max Span | 68.9 ft (21 m) |
| Deck Width | 183.1 ft (55.8 m) |
| Deck Area | 2399.4 sq m |
| Main Spans | 1 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 201,000 (2017) |
| Truck Traffic | 1% |
| Lanes On Bridge | 12 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 33 0296 |