Alderbrook DR over Santa Rosa Creek
Good Condition47 years old1,000 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | Near 4th Street |
| Carries | Alderbrook DR |
| Crosses | Santa Rosa Creek |
| Coordinates | 38.44933, -122.69818 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 102.0 ft (31.1 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 342.1 sq m |
| Main Spans | 3 |
| Year Built | 1979 |
Traffic
| Avg Daily Traffic | 1,000 (2010) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 822 |
| Inspection Frequency | Every 48 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 20C0189 |