BAYVIEW-W580 Onrmp over None
FairContra Costa County, California · 04-CC-580-1.23 · Structure no. 28 0271K
- Built
- 1987
- 38 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 571 ft
- 5 main spans
- Daily traffic
- 3,600
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
BAYVIEW-W580 Onrmp over None is a concrete continuous box beam or girders - multiple carrying BAYVIEW-W580 Onrmp over None in Contra Costa County, California. It was built in 1987, so it is 38 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 3,600 vehicles a day, roughly 5% of them trucks, projected to reach 4,081 by 2042. The structure is 571 ft (173.9 m) long and 35 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was BAYVIEW-W580 Onrmp over None built?
It was built in 1987, making it 38 years old in 2025.
What condition is BAYVIEW-W580 Onrmp over None 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 BAYVIEW-W580 Onrmp over None carry?
About 3,600 vehicles per day (2014 count), of which roughly 5% are trucks.
How long is BAYVIEW-W580 Onrmp over None?
The structure is 571 ft (173.9 m) long with a longest span of 87 ft (26.5 m) and a deck 35 ft wide.
Who owns BAYVIEW-W580 Onrmp over None?
It is owned by the State Highway Agency.