Second Ave South over Grayson Creek
PoorContra Costa County, California · Just W Contra Costa Blvd · Structure no. 28C0383
- Built
- 1954
- 71 years old
- Condition
- Poor
- inspected November 2024
- Type
- Slab
- Concrete Continuous
- Length
- 102 ft
- 5 main spans
- Daily traffic
- 3,419
- 2013 count
- Owner
- County
- County Highway Agency
About this bridge
Second Ave South over Grayson Creek is a concrete continuous slab carrying Second Ave South over Grayson Creek in Contra Costa County, California. It was built in 1954, so it is 71 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 3,419 vehicles a day, roughly 1% of them trucks, projected to reach 6,960 by 2046. The structure is 102 ft (31 m) long and 34 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Second Ave South over Grayson Creek built?
It was built in 1954, making it 71 years old in 2025.
What condition is Second Ave South over Grayson Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.
How much traffic does Second Ave South over Grayson Creek carry?
About 3,419 vehicles per day (2013 count), of which roughly 1% are trucks.
How long is Second Ave South over Grayson Creek?
The structure is 102 ft (31 m) long with a longest span of 22 ft (6.7 m) and a deck 34 ft wide.
Who owns Second Ave South over Grayson Creek?
It is owned by the County Highway Agency.