Willow Pass Road over Contra Costa Canal
GoodContra Costa County, California · 0.1MI SW Port Chicago HWY · Structure no. 28C0467
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 105 ft
- 1 main span
- Daily traffic
- 19,000
- 2013 count
- Owner
- County
- County Highway Agency
About this bridge
Willow Pass Road over Contra Costa Canal is a prestressed concrete stringer/multi-beam or girder carrying Willow Pass Road over Contra Costa Canal in Contra Costa County, California. It was built in 1994, so it is 31 years old, younger 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 19,000 vehicles a day, roughly 5% of them trucks, projected to reach 21,448 by 2046. The structure is 105 ft (32.1 m) long and 73 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
| 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 Willow Pass Road over Contra Costa Canal built?
It was built in 1994, making it 31 years old in 2025.
What condition is Willow Pass Road 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 2024.
How much traffic does Willow Pass Road over Contra Costa Canal carry?
About 19,000 vehicles per day (2013 count), of which roughly 5% are trucks.
How long is Willow Pass Road over Contra Costa Canal?
The structure is 105 ft (32.1 m) long with a longest span of 104 ft (31.6 m) and a deck 73 ft wide.
Who owns Willow Pass Road over Contra Costa Canal?
It is owned by the County Highway Agency.