Main Street over Dutch Bill Creek
Good Condition51 years old1,600 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | Main Street At Tyrone |
| Carries | Main Street |
| Crosses | Dutch Bill Creek |
| Coordinates | 38.45033, -123.00035 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 112.5 ft (34.3 m) |
| Max Span | 44.0 ft (13.4 m) |
| Deck Width | 32.5 ft (9.9 m) |
| Deck Area | 339.6 sq m |
| Main Spans | 3 |
| Year Built | 1975 |
Traffic
| Avg Daily Traffic | 1,600 (2015) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2022 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 20C0159 |