Ragatz Lane over Napa River Overflow
FairNapa County, California · 0.45 MI NE Frontage RD · Structure no. 21C0084
- Built
- 1950
- 75 years old
- Condition
- Fair
- inspected May 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 40 ft
- 3 main spans
- Daily traffic
- 161
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Ragatz Lane over Napa River Overflow is a concrete continuous culvert carrying Ragatz Lane over Napa River Overflow in Napa County, California. It was built in 1950, so it is 75 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 161 vehicles a day, roughly 10% of them trucks, projected to reach 272 by 2044. The structure is 40 ft (12.2 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ragatz Lane over Napa River Overflow built?
It was built in 1950, making it 75 years old in 2025.
What condition is Ragatz Lane over Napa River Overflow in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.
How much traffic does Ragatz Lane over Napa River Overflow carry?
About 161 vehicles per day (2014 count), of which roughly 10% are trucks.
How long is Ragatz Lane over Napa River Overflow?
The structure is 40 ft (12.2 m) long with a longest span of 13 ft (4 m) and a deck 34 ft wide.
Who owns Ragatz Lane over Napa River Overflow?
It is owned by the County Highway Agency.