Erlandson ST over Interstate Route 580
FairContra Costa County, California · 04-CC-580-R2.09-RCH · Structure no. 28 0287
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 350 ft
- 3 main spans
- Daily traffic
- 3,000
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
Erlandson ST over Interstate Route 580 is a prestressed concrete continuous box beam or girders - multiple carrying Erlandson ST over Interstate Route 580 in Contra Costa County, California. It was built in 1988, so it is 37 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 3,000 vehicles a day, roughly 10% of them trucks, projected to reach 10,760 by 2042. The structure is 350 ft (106.7 m) long and 51 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Erlandson ST over Interstate Route 580 built?
It was built in 1988, making it 37 years old in 2025.
What condition is Erlandson ST over Interstate Route 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 Erlandson ST over Interstate Route 580 carry?
About 3,000 vehicles per day (2016 count), of which roughly 10% are trucks.
How long is Erlandson ST over Interstate Route 580?
The structure is 350 ft (106.7 m) long with a longest span of 130 ft (39.5 m) and a deck 51 ft wide.
Who owns Erlandson ST over Interstate Route 580?
It is owned by the State Highway Agency.