Old Gravenstein Hy over Blucher Creek
Good Condition101 years old1,562 vehicles/day
Location
| State | California |
| County | Sonoma |
| Location | 0.25 Mi N Of S.h. 116 |
| Carries | Old Gravenstein Hy |
| Crosses | Blucher Creek |
| Coordinates | 38.37222, -122.78630 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 66.9 ft (20.4 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 25.9 ft (7.9 m) |
| Deck Area | 161.2 sq m |
| Main Spans | 3 |
| Year Built | 1925 |
Traffic
| Avg Daily Traffic | 1,562 (2015) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 20C0004 |