US Highway 101 over San Ysidro Creek
FairSanta Barbara County, California · 05-SB-101-9.56 · Structure no. 51 0047
- Built
- 1915
- 110 years old, rebuilt 1959
- Condition
- Fair
- inspected July 2024
- Type
- Tee Beam
- Concrete
- Length
- 32 ft
- 1 main span
- Daily traffic
- 76,000
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 101 over San Ysidro Creek is a concrete tee beam carrying US Highway 101 over San Ysidro Creek in Santa Barbara County, California. It was built in 1915 and reconstructed in 1959, so it is 110 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 76,000 vehicles a day, roughly 5% of them trucks, projected to reach 107,011 by 2042. The structure is 32 ft (9.8 m) long and 106 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US Highway 101 over San Ysidro Creek built?
It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1959.
What condition is US Highway 101 over San Ysidro 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 July 2024.
How much traffic does US Highway 101 over San Ysidro Creek carry?
About 76,000 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is US Highway 101 over San Ysidro Creek?
The structure is 32 ft (9.8 m) long with a longest span of 28 ft (8.5 m) and a deck 106 ft wide.
Who owns US Highway 101 over San Ysidro Creek?
It is owned by the State Highway Agency.