Chalk Hill RD over Brooks Creek
Fair Condition70 years old850 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | 4.5 Mi S Of SR 128 |
| Carries | Chalk Hill RD |
| Crosses | Brooks Creek |
| Coordinates | 38.60027, -122.77762 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 53.1 ft (16.2 m) |
| Max Span | 25.9 ft (7.9 m) |
| Deck Width | 28.5 ft (8.7 m) |
| Deck Area | 140.9 sq m |
| Main Spans | 2 |
| Year Built | 1956 |
Traffic
| Avg Daily Traffic | 850 (2015) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 20C0330 |