State Route 1 over Giacomini Gulch
Good Condition8 years old3,650 vehicles/day
Location
| State | California |
| County | Marin |
| Location | 04-mrn-001-22.78 |
| Carries | State Route 1 |
| Crosses | Giacomini Gulch |
| Coordinates | 37.99694, -122.75464 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Slab |
| Total Length | 40.0 ft (12.2 m) |
| Max Span | 36.1 ft (11 m) |
| Deck Width | 40.0 ft (12.2 m) |
| Deck Area | 148.8 sq m |
| Main Spans | 1 |
| Year Built | 2018 |
Traffic
| Avg Daily Traffic | 3,650 (2017) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
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 0122 |