Seven Hill Rnch RD over Walnut Creek
GoodContra Costa County, California · At Cherry Lane · Structure no. 28C0341
- Built
- 1965
- 60 years old
- Condition
- Good
- inspected January 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 48 ft
- 1 main span
- Daily traffic
- 2,200
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Seven Hill Rnch RD over Walnut Creek is a prestressed concrete box beam or girders - multiple carrying Seven Hill Rnch RD over Walnut Creek in Contra Costa County, California. It was built in 1965, so it is 60 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 2,200 vehicles a day, roughly 3% of them trucks, projected to reach 4,000 by 2040. The structure is 48 ft (14.6 m) long and 57 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 Seven Hill Rnch RD over Walnut Creek built?
It was built in 1965, making it 60 years old in 2025.
What condition is Seven Hill Rnch 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 Seven Hill Rnch RD over Walnut Creek carry?
About 2,200 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Seven Hill Rnch RD over Walnut Creek?
The structure is 48 ft (14.6 m) long with a longest span of 47 ft (14.2 m) and a deck 57 ft wide.
Who owns Seven Hill Rnch RD over Walnut Creek?
It is owned by the City or Municipal Highway Agency.