Structure 18 0004 · Sutter County, CA
Carries State Route 20 over Abandoned Up Rr Spur, 03-sut-020-16.98-yc.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.
How ratings work23 ft end to end. 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 slab bridge.
| State | California |
| County | Sutter |
| Location | 03-sut-020-16.98-yc |
| Carries | State Route 20 |
| Crosses | Abandoned Up Rr Spur |
| Coordinates | 39.14315, -121.60967 |
| Material | Concrete |
| Design | Slab |
| Total Length | 23.0 ft (7 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Area | 121.8 sq m |
| Main Spans | 1 |
| Year Built | 1946 |
| Avg Daily Traffic | 41,750 (2009) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
| Last Inspection | September 2023 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Not applicable |
| Structure Number | 18 0004 |
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.