Maple Creek Road over North Fork Mad River
Poor Condition98 years old624 vehicles/day
Location
| State | California |
| County | Humboldt |
| Location | In Korbel |
| Carries | Maple Creek Road |
| Crosses | North Fork Mad River |
| Coordinates | 40.87057, -123.96217 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Thru |
| Total Length | 429.1 ft (130.8 m) |
| Max Span | 144.0 ft (43.9 m) |
| Deck Width | 26.9 ft (8.2 m) |
| Deck Area | 1072.6 sq m |
| Main Spans | 1 |
| Year Built | 1928 |
Traffic
| Avg Daily Traffic | 624 (2011) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 04C0026 |