Interstate 580 over Canal Boulevard
FairContra Costa County, California · 04-CC-580-R4.64-RCH · Structure no. 28 0278
- Built
- 1991
- 34 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 211 ft
- 2 main spans
- Daily traffic
- 55,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 580 over Canal Boulevard is a prestressed concrete continuous box beam or girders - multiple carrying Interstate 580 over Canal Boulevard 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 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 55,000 vehicles a day, roughly 5% of them trucks, projected to reach 104,290 by 2046. The structure is 211 ft (64.2 m) long and 151 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 580 over Canal Boulevard built?
It was built in 1991, making it 34 years old in 2025.
What condition is Interstate 580 over Canal Boulevard 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 Interstate 580 over Canal Boulevard carry?
About 55,000 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is Interstate 580 over Canal Boulevard?
The structure is 211 ft (64.2 m) long with a longest span of 105 ft (32.1 m) and a deck 151 ft wide.
Who owns Interstate 580 over Canal Boulevard?
It is owned by the State Highway Agency.