Larkmead Lane over Napa River
GoodNapa County, California · 0.6 MI N of S.R. 29 · Structure no. 21C0061
- Built
- 1926
- 99 years old
- Condition
- Good
- inspected May 2023
- Type
- Tee Beam
- Concrete
- Length
- 85 ft
- 2 main spans
- Daily traffic
- 484
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Larkmead Lane over Napa River is a concrete tee beam carrying Larkmead Lane over Napa River in Napa County, California. It was built in 1926, so it is 99 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 484 vehicles a day, roughly 10% of them trucks, projected to reach 480 by 2040. The structure is 85 ft (25.9 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Larkmead Lane over Napa River built?
It was built in 1926, making it 99 years old in 2025.
What condition is Larkmead Lane over Napa River 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 2023.
How much traffic does Larkmead Lane over Napa River carry?
About 484 vehicles per day (2014 count), of which roughly 10% are trucks.
How long is Larkmead Lane over Napa River?
The structure is 85 ft (25.9 m) long with a longest span of 42 ft (12.8 m) and a deck 23 ft wide.
Who owns Larkmead Lane over Napa River?
It is owned by the County Highway Agency.