State Route 4 over Kellogg Creek
Fair Condition36 years old18,900 vehicles/day
Location
| State | California |
| County | Contra Costa |
| Location | 04-cc-004-45.56 |
| Carries | State Route 4 |
| Crosses | Kellogg Creek |
| Coordinates | 37.88932, -121.61857 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 85.6 ft (26.1 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 49.5 ft (15.1 m) |
| Deck Area | 394.1 sq m |
| Main Spans | 3 |
| Year Built | 1990 (reconstructed 2012) |
Traffic
| Avg Daily Traffic | 18,900 (2017) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 28 0032 |