Portland Ave over Permanente Creek
FairSanta Clara County, California · E Miramonte Ave · Structure no. 37C0358
- Built
- 1920
- 105 years old, rebuilt 1960
- Condition
- Fair
- inspected April 2024
- Type
- Arch - Deck
- Concrete
- Length
- 33 ft
- 1 main span
- Daily traffic
- 4,000
- 2014 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Portland Ave over Permanente Creek is a concrete arch - deck carrying Portland Ave over Permanente Creek in Santa Clara County, California. It was built in 1920 and reconstructed in 1960, so it is 105 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 4,000 vehicles a day, roughly 5% of them trucks, projected to reach 4,489 by 2046. The structure is 33 ft (10.2 m) long and 52 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 | 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Portland Ave over Permanente Creek built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1960.
What condition is Portland Ave over Permanente 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 Portland Ave over Permanente Creek carry?
About 4,000 vehicles per day (2014 count), of which roughly 5% are trucks.
How long is Portland Ave over Permanente Creek?
The structure is 33 ft (10.2 m) long with a longest span of 32 ft (9.8 m) and a deck 52 ft wide.
Who owns Portland Ave over Permanente Creek?
It is owned by the City or Municipal Highway Agency.