Wooden Valley RD over Wooden Valley Creek
GoodNapa County, California · 3.4 MI S SR 121 · Structure no. 21C0033
- Built
- 1966
- 59 years old
- Condition
- Good
- inspected May 2022
- Type
- Culvert
- Concrete Continuous
- Length
- 65 ft
- 3 main spans
- Daily traffic
- 500
- 2012 count
- Owner
- County
- County Highway Agency
About this bridge
Wooden Valley RD over Wooden Valley Creek is a concrete continuous culvert carrying Wooden Valley RD over Wooden Valley Creek in Napa County, California. It was built in 1966, so it is 59 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 500 vehicles a day, roughly 10% of them trucks, projected to reach 817 by 2044. The structure is 65 ft (19.8 m) long and 32 ft wide. If it were closed, the detour would be 29.8 mi (48 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Wooden Valley RD over Wooden Valley Creek built?
It was built in 1966, making it 59 years old in 2025.
What condition is Wooden Valley RD over Wooden Valley 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 May 2022.
How much traffic does Wooden Valley RD over Wooden Valley Creek carry?
About 500 vehicles per day (2012 count), of which roughly 10% are trucks.
How long is Wooden Valley RD over Wooden Valley Creek?
The structure is 65 ft (19.8 m) long with a longest span of 21 ft (6.4 m) and a deck 32 ft wide.
Who owns Wooden Valley RD over Wooden Valley Creek?
It is owned by the County Highway Agency.