Sunnyslope Avenue over Interstate 580
FairAlameda County, California · 04-ALA-580-R26.66 · Structure no. 33 0499
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 394 ft
- 3 main spans
- Daily traffic
- 500
- 1998 count
- Owner
- State
- State Highway Agency
About this bridge
Sunnyslope Avenue over Interstate 580 is a prestressed concrete continuous box beam or girders - multiple carrying Sunnyslope Avenue over Interstate 580 in Alameda County, California. It was built in 1986, so it is 39 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 500 vehicles a day, roughly 3% of them trucks, projected to reach 878 by 2044. The structure is 394 ft (120 m) long and 40 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sunnyslope Avenue over Interstate 580 built?
It was built in 1986, making it 39 years old in 2025.
What condition is Sunnyslope Avenue 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 March 2024.
How much traffic does Sunnyslope Avenue over Interstate 580 carry?
About 500 vehicles per day (1998 count), of which roughly 3% are trucks.
How long is Sunnyslope Avenue over Interstate 580?
The structure is 394 ft (120 m) long with a longest span of 163 ft (49.6 m) and a deck 40 ft wide.
Who owns Sunnyslope Avenue over Interstate 580?
It is owned by the State Highway Agency.