U.s. Highway 101 over Donahue St/n. Bridge Bld
Good Condition83 years old106,000 vehicles/day
Location
| State | California |
| County | Marin |
| Location | 04-mrn-101-3.33-saus |
| Carries | U.s. Highway 101 |
| Crosses | Donahue St/n. Bridge Bld |
| Coordinates | 37.87156, -122.50693 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 92.5 ft (28.2 m) |
| Max Span | 20.3 ft (6.2 m) |
| Deck Width | 171.6 ft (52.3 m) |
| Deck Area | 1474.9 sq m |
| Main Spans | 5 |
| Year Built | 1943 (reconstructed 1996) |
Traffic
| Avg Daily Traffic | 106,000 (2009) |
| Truck Traffic | 1% |
| Lanes On Bridge | 10 |
| Lanes Under Bridge | 3 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 27 0042 |