Sweetwtr Sprngs RD over Porter Creek
Fair Condition58 years old140 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | 6.6 Mi W Armstrong RD |
| Carries | Sweetwtr Sprngs RD |
| Crosses | Porter Creek |
| Coordinates | 38.54285, -122.93136 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 11.8 ft (3.6 m) |
| Deck Area | 32.8 sq m |
| Main Spans | 1 |
| Year Built | 1968 |
Traffic
| Avg Daily Traffic | 140 (2015) |
| Truck Traffic | 1% |
| Lanes On Bridge | 1 |
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 | 20C0367 |