State Route 99 SB over Willow Slough
Fair Condition99 years old31,500 vehicles/day
Location
| State | California |
| County | Sacramento |
| Location | 03-sac-099-6.54 |
| Carries | State Route 99 SB |
| Crosses | Willow Slough |
| Coordinates | 38.33232, -121.33063 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 60.7 ft (18.5 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 37.7 ft (11.5 m) |
| Deck Area | 212.8 sq m |
| Main Spans | 3 |
| Year Built | 1927 (reconstructed 1958) |
Traffic
| Avg Daily Traffic | 31,500 (2019) |
| Truck Traffic | 18% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 24 0046L |