Interstate 580 over San Pablo Bay
Fair Condition70 years old78,000 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 04-cc-580-6.22-rch |
| Carries | Interstate 580 |
| Crosses | San Pablo Bay |
| Coordinates | 37.93262, -122.40533 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Truss - Thru |
| Total Length | 21345.1 ft (6,506 m) |
| Max Span | 1086.9 ft (331.3 m) |
| Deck Width | 78.1 ft (23.8 m) |
| Deck Area | 154842.8 sq m |
| Main Spans | 6 |
| Year Built | 1956 |
Traffic
| Avg Daily Traffic | 78,000 (2022) |
| Truck Traffic | 5% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 28 0100 |