U.S. Highway 101 over Oat Valley Creek
FairSonoma County, California · 04-SON-101-R53.06 · Structure no. 20 0265
- Built
- 1984
- 41 years old
- Condition
- Fair
- inspected May 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 50 ft
- 2 main spans
- Daily traffic
- 20,000
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over Oat Valley Creek is a concrete continuous culvert carrying U.S. Highway 101 over Oat Valley Creek in Sonoma County, California. It was built in 1984, so it is 41 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 6 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 20,000 vehicles a day, roughly 12% of them trucks, projected to reach 27,147 by 2045. The structure is 50 ft (15.2 m) long.
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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was U.S. Highway 101 over Oat Valley Creek built?
It was built in 1984, making it 41 years old in 2025.
What condition is U.S. Highway 101 over Oat Valley Creek 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 May 2023.
How much traffic does U.S. Highway 101 over Oat Valley Creek carry?
About 20,000 vehicles per day (2015 count), of which roughly 12% are trucks.
How long is U.S. Highway 101 over Oat Valley Creek?
The structure is 50 ft (15.2 m) long with a longest span of 23 ft (6.9 m).
Who owns U.S. Highway 101 over Oat Valley Creek?
It is owned by the State Highway Agency.