Arnold DR over Carriger Creek
GoodSonoma County, California · 2.4 MI N of SR 116 · Structure no. 20C0212
- Built
- 1974
- 51 years old
- Condition
- Good
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 100 ft
- 3 main spans
- Daily traffic
- 17,700
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Arnold DR over Carriger Creek is a concrete continuous slab carrying Arnold DR over Carriger Creek in Sonoma County, California. It was built in 1974, so it is 51 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 17,700 vehicles a day, roughly 3% of them trucks, projected to reach 10,976 by 2042. The structure is 100 ft (30.5 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 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 Arnold DR over Carriger Creek built?
It was built in 1974, making it 51 years old in 2025.
What condition is Arnold DR over Carriger Creek 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 October 2024.
How much traffic does Arnold DR over Carriger Creek carry?
About 17,700 vehicles per day (2015 count), of which roughly 3% are trucks.
How long is Arnold DR over Carriger Creek?
The structure is 100 ft (30.5 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.
Who owns Arnold DR over Carriger Creek?
It is owned by the County Highway Agency.