US Highway 101 SB over Gannon Slough
Fair Condition30 years old17,500 vehicles/day
Location
| State | California |
| County | Humboldt |
| Location | 01-hum-101-84.70 |
| Carries | US Highway 101 SB |
| Crosses | Gannon Slough |
| Coordinates | 40.84616, -124.08199 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 397.6 ft (121.2 m) |
| Max Span | 36.1 ft (11 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 1575.6 sq m |
| Main Spans | 11 |
| Year Built | 1996 |
Traffic
| Avg Daily Traffic | 17,500 (2010) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 04 0024L |