San Miguel Canyon over Carneros Creek
FairMonterey County, California · 4.7 MI N SH 101 · Structure no. 44C0043
- Built
- 1962
- 63 years old, rebuilt 2008
- Condition
- Fair
- inspected August 2023
- Type
- Slab
- Concrete Continuous
- Length
- 80 ft
- 3 main spans
- Daily traffic
- 18,300
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
San Miguel Canyon over Carneros Creek is a concrete continuous slab carrying San Miguel Canyon over Carneros Creek in Monterey County, California. It was built in 1962 and reconstructed in 2008, so it is 63 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 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 18,300 vehicles a day, roughly 4% of them trucks, projected to reach 30,503 by 2040. The structure is 80 ft (24.4 m) long and 52 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was San Miguel Canyon over Carneros Creek built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2008.
What condition is San Miguel Canyon over Carneros 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 August 2023.
How much traffic does San Miguel Canyon over Carneros Creek carry?
About 18,300 vehicles per day (2017 count), of which roughly 4% are trucks.
How long is San Miguel Canyon over Carneros Creek?
The structure is 80 ft (24.4 m) long with a longest span of 32 ft (9.8 m) and a deck 52 ft wide.
Who owns San Miguel Canyon over Carneros Creek?
It is owned by the County Highway Agency.