Structure 35 0287K · San Mateo County, CA
Carries Sfo-w380 Conn Rmp over N101-san Bruno Off-ramp, 04-sm-380-6.44.
Set by its lowest-rated component: Deck and Superstructure at 6 of 9.
How ratings work5,067 ft end to end, longest span 130 ft: about 14 football fields. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a box-beam bridge.
| State | California |
| County | San Mateo |
| Location | 04-sm-380-6.44 |
| Carries | Sfo-w380 Conn Rmp |
| Crosses | N101-san Bruno Off-ramp |
| Coordinates | 37.62814, -122.40175 |
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Multiple |
| Total Length | 5066.9 ft (1544.4 m) |
| Max Span | 129.9 ft (39.6 m) |
| Deck Width | 41.7 ft (12.7 m) |
| Deck Area | 19613.9 sq m |
| Main Spans | 38 |
| Year Built | 1987 |
| Avg Daily Traffic | 50,000 (1998) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 5 |
| Last Inspection | February 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Not applicable |
| Structure Number | 35 0287K |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.