Bear River Road over Bonanza Gulch
Good Condition40 years old15 vehicles/day
Location
| State | California |
| County | Humboldt |
| Location | 8.5 Mi S Of Mattole RD |
| Carries | Bear River Road |
| Crosses | Bonanza Gulch |
| Coordinates | 40.46303, -124.29904 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 42.0 ft (12.8 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 24.6 ft (7.5 m) |
| Deck Area | 96 sq m |
| Main Spans | 1 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 15 (2011) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 322 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 04C0163 |