Buchanan RD over Contra Costa Canal
GoodContra Costa County, California · 0.4 MI W Somersville RD · Structure no. 28C0286
- Built
- 1938
- 87 years old, rebuilt 1956
- Condition
- Good
- inspected January 2025
- Type
- Tee Beam
- Concrete
- Length
- 30 ft
- 1 main span
- Daily traffic
- 5,500
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Buchanan RD over Contra Costa Canal is a concrete tee beam carrying Buchanan RD over Contra Costa Canal in Contra Costa County, California. It was built in 1938 and reconstructed in 1956, so it is 87 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 5,500 vehicles a day, roughly 5% of them trucks, projected to reach 5,563 by 2047. The structure is 30 ft (9.1 m) long and 68 ft wide. If it were closed, the detour would be 5 mi (8 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Buchanan RD over Contra Costa Canal built?
It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1956.
What condition is Buchanan 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 January 2025.
How much traffic does Buchanan RD over Contra Costa Canal carry?
About 5,500 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Buchanan RD over Contra Costa Canal?
The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 68 ft wide.
Who owns Buchanan RD over Contra Costa Canal?
It is owned by the City or Municipal Highway Agency.