De Long Avenue over Ncrra (old Nwp Rr)
Good Condition52 years old30,155 vehicles/day
Location
| State | California |
| County | Marin |
| Location | 04-mrn-101-r21.15-nvto |
| Carries | De Long Avenue |
| Crosses | Ncrra (old Nwp Rr) |
| Coordinates | 38.10513, -122.56404 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 220.1 ft (67.1 m) |
| Max Span | 133.9 ft (40.8 m) |
| Deck Width | 97.1 ft (29.6 m) |
| Deck Area | 1986.2 sq m |
| Main Spans | 2 |
| Year Built | 1974 |
Traffic
| Avg Daily Traffic | 30,155 (2000) |
| Truck Traffic | 1% |
| Lanes On Bridge | 5 |
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 0103Y |