Old Ranch RD over Alamo Creek
GoodContra Costa County, California · 0.2 MI W Dougherty RD · Structure no. 28C0428
- Built
- 1967
- 58 years old
- Condition
- Good
- inspected March 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 35 ft
- 3 main spans
- Daily traffic
- 1,000
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Old Ranch RD over Alamo Creek is a concrete continuous culvert carrying Old Ranch RD over Alamo Creek in Contra Costa County, California. It was built in 1967, so it is 58 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 3,314 by 2041. The structure is 35 ft (10.7 m) long. 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old Ranch RD over Alamo Creek built?
It was built in 1967, making it 58 years old in 2025.
What condition is Old Ranch RD over Alamo 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 March 2024.
How much traffic does Old Ranch RD over Alamo Creek carry?
About 1,000 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Old Ranch RD over Alamo Creek?
The structure is 35 ft (10.7 m) long with a longest span of 11 ft (3.3 m).
Who owns Old Ranch RD over Alamo Creek?
It is owned by the City or Municipal Highway Agency.