State Route 99 SB over Duck Slough Overflow
Fair Condition11 years old19,500 vehicles/day
Location
| State | California |
| County | Merced |
| Location | 10-mer-099-9.86 |
| Carries | State Route 99 SB |
| Crosses | Duck Slough Overflow |
| Coordinates | 37.25470, -120.41579 |
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 | 160.8 ft (49 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 59.1 ft (18 m) |
| Deck Area | 882 sq m |
| Main Spans | 4 |
| 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 0244L |