Humboldt Road over Colby Creek
Fair Condition47 years old401 vehicles/day
Location
| State | California |
| County | Butte |
| Location | 10.5 Mi E Jct S.r. 32 |
| Carries | Humboldt Road |
| Crosses | Colby Creek |
| Coordinates | 40.11123, -121.48567 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 35.1 ft (10.7 m) |
| Max Span | 34.1 ft (10.4 m) |
| Deck Width | 28.9 ft (8.8 m) |
| Deck Area | 94.2 sq m |
| Main Spans | 1 |
| Year Built | 1979 |
Traffic
| Avg Daily Traffic | 401 (2019) |
| Truck Traffic | 17% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 12C0185 |