Alcosta Blvd over South San Ramon Creek
GoodContra Costa County, California · 0.9 MI East of I-680 · Structure no. 28C0333
- Built
- 1962
- 63 years old
- Condition
- Good
- inspected March 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 33 ft
- 3 main spans
- Daily traffic
- 26,700
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Alcosta Blvd over South San Ramon Creek is a concrete continuous culvert carrying Alcosta Blvd over South San Ramon Creek in Contra Costa County, California. It was built in 1962, so it is 63 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 26,700 vehicles a day, roughly 2% of them trucks, projected to reach 21,439 by 2042. The structure is 33 ft (10.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Alcosta Blvd over South San Ramon Creek built?
It was built in 1962, making it 63 years old in 2025.
What condition is Alcosta Blvd over South San Ramon Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.
How much traffic does Alcosta Blvd over South San Ramon Creek carry?
About 26,700 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Alcosta Blvd over South San Ramon Creek?
The structure is 33 ft (10.2 m) long with a longest span of 11 ft (3.3 m).
Who owns Alcosta Blvd over South San Ramon Creek?
It is owned by the City or Municipal Highway Agency.