Stony Point RD over State Route 12
FairSonoma County, California · 04-SON-012-R14.45-SRO · Structure no. 20 0270
- Built
- 1993
- 32 years old
- Condition
- Fair
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 216 ft
- 2 main spans
- Daily traffic
- 24,000
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
Stony Point RD over State Route 12 is a prestressed concrete continuous box beam or girders - multiple carrying Stony Point RD over State Route 12 in Sonoma County, California. It was built in 1993, so it is 32 years old, younger 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 24,000 vehicles a day, roughly 5% of them trucks, projected to reach 29,538 by 2046. The structure is 216 ft (65.7 m) long and 99 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Stony Point RD over State Route 12 built?
It was built in 1993, making it 32 years old in 2025.
What condition is Stony Point RD over State Route 12 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 September 2024.
How much traffic does Stony Point RD over State Route 12 carry?
About 24,000 vehicles per day (2016 count), of which roughly 5% are trucks.
How long is Stony Point RD over State Route 12?
The structure is 216 ft (65.7 m) long with a longest span of 122 ft (37.1 m) and a deck 99 ft wide.
Who owns Stony Point RD over State Route 12?
It is owned by the State Highway Agency.