West Dry Creek RD over Grape Creek
GoodSonoma County, California · 5.38 MI NW Westside RD · Structure no. 20C0408
- Built
- 1928
- 97 years old, rebuilt 1960
- Condition
- Good
- inspected July 2023
- Type
- Tee Beam
- Concrete
- Length
- 27 ft
- 1 main span
- Daily traffic
- 200
- 2010 count
- Owner
- County
- County Highway Agency
About this bridge
West Dry Creek RD over Grape Creek is a concrete tee beam carrying West Dry Creek RD over Grape Creek in Sonoma County, California. It was built in 1928 and reconstructed in 1960, so it is 97 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 200 vehicles a day, roughly 1% of them trucks, projected to reach 287 by 2043. The structure is 27 ft (8.3 m) long and 29 ft wide. If it were closed, the detour would be 16.8 mi (27 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was West Dry Creek RD over Grape Creek built?
It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1960.
What condition is West Dry Creek RD over Grape Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.
How much traffic does West Dry Creek RD over Grape Creek carry?
About 200 vehicles per day (2010 count), of which roughly 1% are trucks.
How long is West Dry Creek RD over Grape Creek?
The structure is 27 ft (8.3 m) long with a longest span of 24 ft (7.3 m) and a deck 29 ft wide.
Who owns West Dry Creek RD over Grape Creek?
It is owned by the County Highway Agency.