San Carlos ST over Caltrain UPRR BNSF Amtra
PoorSanta Clara County, California · Just W of Bird Ave · Structure no. 37C0195
- Built
- 1932
- 93 years old
- Condition
- Poor
- inspected March 2024
- Type
- Tee Beam
- Concrete
- Length
- 510 ft
- 20 main spans
- Daily traffic
- 25,000
- 2004 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
San Carlos ST over Caltrain UPRR BNSF Amtra is a concrete tee beam carrying San Carlos ST over Caltrain UPRR BNSF Amtra in Santa Clara County, California. It was built in 1932, so it is 93 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 25,000 vehicles a day, roughly 2% of them trucks, projected to reach 39,815 by 2042. The structure is 510 ft (155.4 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, 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 San Carlos ST over Caltrain UPRR BNSF Amtra built?
It was built in 1932, making it 93 years old in 2025.
What condition is San Carlos ST over Caltrain UPRR BNSF Amtra in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.
How much traffic does San Carlos ST over Caltrain UPRR BNSF Amtra carry?
About 25,000 vehicles per day (2004 count), of which roughly 2% are trucks.
How long is San Carlos ST over Caltrain UPRR BNSF Amtra?
The structure is 510 ft (155.4 m) long with a longest span of 37 ft (11.3 m) and a deck 52 ft wide.
Who owns San Carlos ST over Caltrain UPRR BNSF Amtra?
It is owned by the City or Municipal Highway Agency.