Westside RD over Porter Creek
Good Condition105 years old1,738 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | 1.0 Mi N Wohler Br |
| Carries | Westside RD |
| Crosses | Porter Creek |
| Coordinates | 38.51788, -122.89019 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 32.2 ft (9.8 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 22.3 ft (6.8 m) |
| Deck Area | 66.6 sq m |
| Main Spans | 1 |
| Year Built | 1921 |
Traffic
| Avg Daily Traffic | 1,738 (2016) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 20C0138 |