SR 20 over Powell Slough
Good Condition111 years old6,400 vehicles/day
Location
| State | California |
| County | Colusa |
| Location | 03-col-020-28.54 |
| Carries | SR 20 |
| Crosses | Powell Slough |
| Coordinates | 39.19536, -122.04917 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 59.1 ft (18 m) |
| Max Span | 21.0 ft (6.4 m) |
| Deck Width | 41.0 ft (12.5 m) |
| Deck Area | 225 sq m |
| Main Spans | 1 |
| Year Built | 1915 (reconstructed 1940) |
Traffic
| Avg Daily Traffic | 6,400 (2013) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 15 0019 |