Ignacio Boulevard over U.s. Highway 101
Poor Condition62 years old12,900 vehicles/day
Location
| State | California |
| County | Marin |
| Location | 04-mrn-101-18.09-nvto |
| Carries | Ignacio Boulevard |
| Crosses | U.s. Highway 101 |
| Coordinates | 38.06601, -122.53785 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 268.0 ft (81.7 m) |
| Max Span | 75.1 ft (22.9 m) |
| Deck Width | 91.9 ft (28 m) |
| Deck Area | 2287.6 sq m |
| Main Spans | 3 |
| Year Built | 1964 |
Traffic
| Avg Daily Traffic | 12,900 (1998) |
| Truck Traffic | 1% |
| Lanes On Bridge | 6 |
| Lanes Under Bridge | 12 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 27 0083 |