Las Posas RD over Arroyo Santa Rosa
GoodVentura County, California · 0.2 MI N of Santa Rosa RD · Structure no. 52C0172
- Built
- 1972
- 53 years old
- Condition
- Good
- inspected April 2024
- Type
- Tee Beam
- Concrete
- Length
- 61 ft
- 1 main span
- Daily traffic
- 3,100
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Las Posas RD over Arroyo Santa Rosa is a concrete tee beam carrying Las Posas RD over Arroyo Santa Rosa in Ventura County, California. It was built in 1972, so it is 53 years old, younger 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 3,100 vehicles a day, roughly 2% of them trucks, projected to reach 4,536 by 2046. The structure is 61 ft (18.6 m) long and 56 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Las Posas RD over Arroyo Santa Rosa built?
It was built in 1972, making it 53 years old in 2025.
What condition is Las Posas RD over Arroyo Santa Rosa 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 April 2024.
How much traffic does Las Posas RD over Arroyo Santa Rosa carry?
About 3,100 vehicles per day (2019 count), of which roughly 2% are trucks.
How long is Las Posas RD over Arroyo Santa Rosa?
The structure is 61 ft (18.6 m) long with a longest span of 59 ft (18 m) and a deck 56 ft wide.
Who owns Las Posas RD over Arroyo Santa Rosa?
It is owned by the County Highway Agency.