Ygnacio Valley RD over Walnut Creek
GoodContra Costa County, California · 0.8 MI E of I 680 · Structure no. 28C0063
- Built
- 1975
- 50 years old
- Condition
- Good
- inspected January 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 49 ft
- 1 main span
- Daily traffic
- 65,100
- 2019 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Ygnacio Valley RD over Walnut Creek is a prestressed concrete tee beam carrying Ygnacio Valley RD over Walnut Creek in Contra Costa County, California. It was built in 1975, so it is 50 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 65,100 vehicles a day, roughly 2% of them trucks, projected to reach 80,000 by 2040. The structure is 49 ft (14.8 m) long and 108 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 | 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 Ygnacio Valley RD over Walnut Creek built?
It was built in 1975, making it 50 years old in 2025.
What condition is Ygnacio Valley RD over Walnut 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 January 2023.
How much traffic does Ygnacio Valley RD over Walnut Creek carry?
About 65,100 vehicles per day (2019 count), of which roughly 2% are trucks.
How long is Ygnacio Valley RD over Walnut Creek?
The structure is 49 ft (14.8 m) long with a longest span of 48 ft (14.6 m) and a deck 108 ft wide.
Who owns Ygnacio Valley RD over Walnut Creek?
It is owned by the City or Municipal Highway Agency.