Bailey RD over Contra Costa Canal
GoodContra Costa County, California · At SR 4 · Structure no. 28C0077
- Built
- 1969
- 56 years old, rebuilt 1995
- Condition
- Good
- inspected November 2022
- Type
- Tee Beam
- Concrete
- Length
- 37 ft
- 1 main span
- Daily traffic
- 16,200
- 2013 count
- Owner
- County
- County Highway Agency
About this bridge
Bailey RD over Contra Costa Canal is a concrete tee beam carrying Bailey RD over Contra Costa Canal in Contra Costa County, California. It was built in 1969 and reconstructed in 1995, so it is 56 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 16,200 vehicles a day, roughly 10% of them trucks, projected to reach 21,689 by 2039. The structure is 37 ft (11.3 m) long and 134 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Bailey RD over Contra Costa Canal built?
It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1995.
What condition is Bailey RD over Contra Costa Canal 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 November 2022.
How much traffic does Bailey RD over Contra Costa Canal carry?
About 16,200 vehicles per day (2013 count), of which roughly 10% are trucks.
How long is Bailey RD over Contra Costa Canal?
The structure is 37 ft (11.3 m) long with a longest span of 35 ft (10.6 m) and a deck 134 ft wide.
Who owns Bailey RD over Contra Costa Canal?
It is owned by the County Highway Agency.