Stony Point RD over Laguna De Santa Rosa
FairSonoma County, California · 0.65 MI N of Lowell Ave · Structure no. 20C0274
- Built
- 1960
- 65 years old, rebuilt 1994
- Condition
- Fair
- inspected October 2023
- Type
- Slab
- Concrete Continuous
- Length
- 237 ft
- 9 main spans
- Daily traffic
- 10,300
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Stony Point RD over Laguna De Santa Rosa is a concrete continuous slab carrying Stony Point RD over Laguna De Santa Rosa in Sonoma County, California. It was built in 1960 and reconstructed in 1994, so it is 65 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 5 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 10,300 vehicles a day, roughly 5% of them trucks, projected to reach 12,000 by 2040. The structure is 237 ft (72.1 m) long and 73 ft wide. If it were closed, the detour would be 6.8 mi (11 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 |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Stony Point RD over Laguna De Santa Rosa built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1994.
What condition is Stony Point RD over Laguna De Santa Rosa 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 October 2023.
How much traffic does Stony Point RD over Laguna De Santa Rosa carry?
About 10,300 vehicles per day (2015 count), of which roughly 5% are trucks.
How long is Stony Point RD over Laguna De Santa Rosa?
The structure is 237 ft (72.1 m) long with a longest span of 26 ft (7.9 m) and a deck 73 ft wide.
Who owns Stony Point RD over Laguna De Santa Rosa?
It is owned by the County Highway Agency.