State Route 166 over Red Rock Canyon Creek
Fair Condition33 years old2,900 vehicles/day
Location
| State | California |
| County | San Luis Obispo |
| Location | 05-slo-166-46.84 |
| Carries | State Route 166 |
| Crosses | Red Rock Canyon Creek |
| Coordinates | 35.06107, -119.95360 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 9 (Excellent) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 20.7 ft (6.3 m) |
| Max Span | 10.2 ft (3.1 m) |
| Deck Width | 59.1 ft (18 m) |
| Deck Area | 113.4 sq m |
| Main Spans | 2 |
| Year Built | 1993 |
Traffic
| Avg Daily Traffic | 2,900 (2009) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 49 0233 |