Auto Tour Route over Powell Slough
Good Condition35 years old25 vehicles/day
Location
| State | California |
| County | Colusa |
| Location | W .2 Mi On Refuge Road |
| Carries | Auto Tour Route |
| Crosses | Powell Slough |
| Coordinates | 39.18817, -122.04433 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 65.0 ft (19.8 m) |
| Max Span | 64.0 ft (19.5 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 194.0 sq m |
| Main Spans | 1 |
| Year Built | 1991 (reconstructed 2008) |
Traffic
| Avg Daily Traffic | 25 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2022 |
| Inspection Frequency | Every 48 months |
| Owner | Code 63 |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000011621-00055 |