State Route 99 NB over Duck Slough
Fair Condition11 years old19,500 vehicles/day
Location
| State | California |
| County | Merced |
| Location | 10-mer-099-r9.43 |
| Carries | State Route 99 NB |
| Crosses | Duck Slough |
| Coordinates | 37.25043, -120.41000 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 88.3 ft (26.9 m) |
| Max Span | 44.3 ft (13.5 m) |
| Deck Width | 59.1 ft (18 m) |
| Deck Area | 484.2 sq m |
| Main Spans | 2 |
| Year Built | 2015 |
Traffic
| Avg Daily Traffic | 19,500 (2009) |
| Truck Traffic | 20% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 39 0243R |