12 TH Street over Interstate 980
FairAlameda County, California · 04-ALA-980-0.60-OAK · Structure no. 33 0480
- Built
- 1981
- 44 years old
- Condition
- Fair
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 314 ft
- 3 main spans
- Daily traffic
- 8,000
- 2012 count
- Owner
- State
- State Highway Agency
About this bridge
12 TH Street over Interstate 980 is a prestressed concrete continuous box beam or girders - multiple carrying 12 TH Street over Interstate 980 in Alameda County, California. It was built in 1981, so it is 44 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 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 8,000 vehicles a day, roughly 2% of them trucks, projected to reach 8,658 by 2044. The structure is 314 ft (95.7 m) long and 68 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 | 7 Good | Some minor problems. |
| 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 12 TH Street over Interstate 980 built?
It was built in 1981, making it 44 years old in 2025.
What condition is 12 TH Street over Interstate 980 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 May 2024.
How much traffic does 12 TH Street over Interstate 980 carry?
About 8,000 vehicles per day (2012 count), of which roughly 2% are trucks.
How long is 12 TH Street over Interstate 980?
The structure is 314 ft (95.7 m) long with a longest span of 124 ft (37.8 m) and a deck 68 ft wide.
Who owns 12 TH Street over Interstate 980?
It is owned by the State Highway Agency.