Butler Valley RD over Mad River
Fair Condition89 years old105 vehicles/day
Location
| State | California |
| County | Humboldt |
| Location | 0.1 Mi E/o Black Crk LN |
| Carries | Butler Valley RD |
| Crosses | Mad River |
| Coordinates | 40.76481, -123.88928 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 204.1 ft (62.2 m) |
| Max Span | 132.9 ft (40.5 m) |
| Deck Width | 22.0 ft (6.7 m) |
| Deck Area | 416.7 sq m |
| Main Spans | 1 |
| Year Built | 1937 (reconstructed 1965) |
Traffic
| Avg Daily Traffic | 105 (2011) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 04C0052 |