Atherton Avenue over Ncrra (old Nwp Rr)
Good Condition52 years old8,800 vehicles/day
Location
| State | California |
| County | Marin |
| Location | 04-mrn-101-r22.04-nvto |
| Carries | Atherton Avenue |
| Crosses | Ncrra (old Nwp Rr) |
| Coordinates | 38.11804, -122.56663 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 117.1 ft (35.7 m) |
| Max Span | 115.2 ft (35.1 m) |
| Deck Width | 92.8 ft (28.3 m) |
| Deck Area | 1010.3 sq m |
| Main Spans | 1 |
| Year Built | 1974 |
Traffic
| Avg Daily Traffic | 8,800 (2000) |
| Truck Traffic | 1% |
| Lanes On Bridge | 6 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 27 0104Y |