Richmond Parkway over Castro ST
FairContra Costa County, California · 1/2 MI S of Getrude Ave · Structure no. 28C0471
- Built
- 1995
- 30 years old
- Condition
- Fair
- inspected December 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 418 ft
- 5 main spans
- Daily traffic
- 27,000
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Richmond Parkway over Castro ST is a prestressed concrete continuous box beam or girders - multiple carrying Richmond Parkway over Castro ST in Contra Costa County, California. It was built in 1995, so it is 30 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 27,000 vehicles a day, roughly 5% of them trucks, projected to reach 29,141 by 2042. The structure is 418 ft (127.4 m) long and 86 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 | 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Richmond Parkway over Castro ST built?
It was built in 1995, making it 30 years old in 2025.
What condition is Richmond Parkway over Castro ST 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 December 2024.
How much traffic does Richmond Parkway over Castro ST carry?
About 27,000 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Richmond Parkway over Castro ST?
The structure is 418 ft (127.4 m) long with a longest span of 112 ft (34.1 m) and a deck 86 ft wide.
Who owns Richmond Parkway over Castro ST?
It is owned by the City or Municipal Highway Agency.