Chetwood ST over Interstate 580
FairAlameda County, California · 04-ALA-580-44.07-OAK · Structure no. 33 0290
- Built
- 1961
- 64 years old
- Condition
- Fair
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 315 ft
- 4 main spans
- Daily traffic
- 4,640
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Chetwood ST over Interstate 580 is a concrete continuous box beam or girders - multiple carrying Chetwood ST over Interstate 580 in Alameda County, California. It was built in 1961, so it is 64 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 4,640 vehicles a day, roughly 1% of them trucks, projected to reach 5,327 by 2042. The structure is 315 ft (95.9 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Chetwood ST over Interstate 580 built?
It was built in 1961, making it 64 years old in 2025.
What condition is Chetwood ST over Interstate 580 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 2024.
How much traffic does Chetwood ST over Interstate 580 carry?
About 4,640 vehicles per day (2009 count), of which roughly 1% are trucks.
How long is Chetwood ST over Interstate 580?
The structure is 315 ft (95.9 m) long with a longest span of 120 ft (36.6 m) and a deck 46 ft wide.
Who owns Chetwood ST over Interstate 580?
It is owned by the State Highway Agency.