U.S. Highway 101 over Hinebaugh Creek
FairSonoma County, California · 04-SON-101-14.02-RNPK · Structure no. 20 0082
- Built
- 1968
- 57 years old, rebuilt 1970
- Condition
- Fair
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 48 ft
- 4 main spans
- Daily traffic
- 92,000
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over Hinebaugh Creek is a concrete continuous culvert carrying U.S. Highway 101 over Hinebaugh Creek in Sonoma County, California. It was built in 1968 and reconstructed in 1970, so it is 57 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 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 92,000 vehicles a day, roughly 6% of them trucks, projected to reach 170,145 by 2046. The structure is 48 ft (14.6 m) long. If it were closed, the detour would be 11.8 mi (19 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 |
|---|---|---|
| Channel and channel protection | 9 Excellent | 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 Hinebaugh Creek built?
It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1970.
What condition is U.S. Highway 101 over Hinebaugh 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 April 2024.
How much traffic does U.S. Highway 101 over Hinebaugh Creek carry?
About 92,000 vehicles per day (2016 count), of which roughly 6% are trucks.
How long is U.S. Highway 101 over Hinebaugh Creek?
The structure is 48 ft (14.6 m) long with a longest span of 11 ft (3.4 m).
Who owns U.S. Highway 101 over Hinebaugh Creek?
It is owned by the State Highway Agency.