San Miguel Canyon over U.S. Highway 101
FairMonterey County, California · 05-MON-101-96.14 · Structure no. 44 0271
- Built
- 2004
- 21 years old, rebuilt 2012
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 193 ft
- 2 main spans
- Daily traffic
- 11,900
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
San Miguel Canyon over U.S. Highway 101 is a prestressed concrete continuous box beam or girders - multiple carrying San Miguel Canyon over U.S. Highway 101 in Monterey County, California. It was built in 2004 and reconstructed in 2012, so it is 21 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 11,900 vehicles a day, roughly 5% of them trucks, projected to reach 36,522 by 2042. The structure is 193 ft (58.9 m) long and 54 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 San Miguel Canyon over U.S. Highway 101 built?
It was built in 2004, making it 21 years old in 2025. It was reconstructed in 2012.
What condition is San Miguel Canyon over U.S. Highway 101 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 June 2024.
How much traffic does San Miguel Canyon over U.S. Highway 101 carry?
About 11,900 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is San Miguel Canyon over U.S. Highway 101?
The structure is 193 ft (58.9 m) long with a longest span of 110 ft (33.4 m) and a deck 54 ft wide.
Who owns San Miguel Canyon over U.S. Highway 101?
It is owned by the State Highway Agency.