I-580 W on Ramp over Central Ave
GoodContra Costa County, California · 04-CC-580-0.25-RCH · Structure no. 28 0231S
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 338 ft
- 4 main spans
- Daily traffic
- 4,400
- 2011 count
- Owner
- State
- State Highway Agency
About this bridge
I-580 W on Ramp over Central Ave is a prestressed concrete continuous box beam or girders - multiple carrying I-580 W on Ramp over Central Ave in Contra Costa County, California. It was built in 1991, so it is 34 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 4,400 vehicles a day, roughly 5% of them trucks, projected to reach 4,846 by 2042. The structure is 338 ft (103 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-580 W on Ramp over Central Ave built?
It was built in 1991, making it 34 years old in 2025.
What condition is I-580 W on Ramp over Central Ave in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.
How much traffic does I-580 W on Ramp over Central Ave carry?
About 4,400 vehicles per day (2011 count), of which roughly 5% are trucks.
How long is I-580 W on Ramp over Central Ave?
The structure is 338 ft (103 m) long with a longest span of 85 ft (25.9 m) and a deck 27 ft wide.
Who owns I-580 W on Ramp over Central Ave?
It is owned by the State Highway Agency.