State Route 580 over Bellam Boulevard
Good Condition16 years old67,000 vehicles/day
Location
| State | California |
| County | Marin |
| Location | 04-mrn-580-4.50-srf |
| Carries | State Route 580 |
| Crosses | Bellam Boulevard |
| Coordinates | 37.95994, -122.50520 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 119.4 ft (36.4 m) |
| Max Span | 118.4 ft (36.1 m) |
| Deck Width | 42.0 ft (12.8 m) |
| Deck Area | 465.9 sq m |
| Main Spans | 1 |
| Year Built | 2010 |
Traffic
| Avg Daily Traffic | 67,000 (2021) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 7 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 27 0073R |