Mattole RD over Mattole River
Fair Condition106 years old514 vehicles/day
Location
| State | California |
| County | Humboldt |
| Location | E Of Jct Wilder Ridge RD |
| Carries | Mattole RD |
| Crosses | Mattole River |
| Coordinates | 40.24354, -124.12298 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Truss - Thru |
| Total Length | 383.9 ft (117 m) |
| Max Span | 187.0 ft (57 m) |
| Deck Width | 15.7 ft (4.8 m) |
| Deck Area | 561.6 sq m |
| Main Spans | 2 |
| Year Built | 1920 |
Traffic
| Avg Daily Traffic | 514 (2009) |
| Truck Traffic | 5% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 04C0055 |