Bay ST over 7th Street
FairAlameda County, California · 0.1 KM West of I-880 · Structure no. 33C0396
- Built
- 1997
- 28 years old
- Condition
- Fair
- inspected November 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 121 ft
- 2 main spans
- Daily traffic
- 23,439
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Bay ST over 7th Street is a prestressed concrete continuous box beam or girders - multiple carrying Bay ST over 7th Street in Alameda County, California. It was built in 1997, so it is 28 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 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 23,439 vehicles a day, roughly 2% of them trucks, projected to reach 38,291 by 2042. The structure is 121 ft (36.8 m) long and 26 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 | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Bay ST over 7th Street built?
It was built in 1997, making it 28 years old in 2025.
What condition is Bay ST over 7th Street 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 November 2024.
How much traffic does Bay ST over 7th Street carry?
About 23,439 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is Bay ST over 7th Street?
The structure is 121 ft (36.8 m) long with a longest span of 62 ft (19 m) and a deck 26 ft wide.
Who owns Bay ST over 7th Street?
It is owned by the City or Municipal Highway Agency.