Kastania Road over US Highway 101
GoodSonoma County, California · 04-SON-101-2.60-PET · Structure no. 20 0294
- Built
- 2014
- 11 years old
- Condition
- Good
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 184 ft
- 1 main span
- Daily traffic
- 2,000
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Kastania Road over US Highway 101 is a prestressed concrete box beam or girders - multiple carrying Kastania Road over US Highway 101 in Sonoma County, California. It was built in 2014, so it is 11 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 2,000 vehicles a day, roughly 3% of them trucks, projected to reach 2,619 by 2046. The structure is 184 ft (56.1 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Kastania Road over US Highway 101 built?
It was built in 2014, making it 11 years old in 2025.
What condition is Kastania Road over US Highway 101 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 March 2024.
How much traffic does Kastania Road over US Highway 101 carry?
About 2,000 vehicles per day (2014 count), of which roughly 3% are trucks.
How long is Kastania Road over US Highway 101?
The structure is 184 ft (56.1 m) long with a longest span of 184 ft (56.1 m) and a deck 78 ft wide.
Who owns Kastania Road over US Highway 101?
It is owned by the State Highway Agency.